E30 Vacuum Leak

If this occurs the idle may oscillate. The parts you you should be able to track down a vacuum leak. Some engines have timing belts instead of chains. BMW Parts are what we do. BOV's are usually vacuum operated, but they both do the same thing. The intake code means its leaking from the intake,bad gaskets, or a vacuum leak. Our resident classic car expert knows how to get the perfect E30. ade of waterproof fabric, durable to use. The selector shaft seal was replaced. My first thought due to the location was the vacuum hose to the fuel pressure regulator. But I dont want to throw more money at parts that might fix it. Luckily, AutoZone has the best valve cover gaskets for cars and trucks on the market today. elle save 90% subscribe give a gift visit the website customer service. Re-check all of your piping connections, especially from turbo > intercooler hot side, and intercooler > charge pipe cold side. Head Gasket Set - E30 M3 2. For vacuum boosters, failure will generally create a vacuum leak, and the vehicle may run roughly, become hard to start, misfire at engine idle, and exhibit poor fuel mileage. Its not a vacuum leak otherwise it wouldn't hold idle. Door trim set (6 pcs) for E30 sedan $ 359. The check engine light is on. Yes, I am aware that technically vacuum doesn't leak, but leaks in the vacuum system can be called "vacuum leaks" for convenience) Air leaks are one of the biggest problems on Motronic cars. If no leaks are found, vent the nitrogen out then connect the vacuum pump. BMW M54B25 engine reliability, problems and repair. Shop Best Buy for electronics, computers, appliances, cell phones, video games & more new tech. If you have a leak on the ground near the center of the car with a reddish fluid this is probably it. 1988 BMW E30 325i Vacuum Lines Stadia Productions p1423 Secondary Air System bank 1 code vacuum hose leak 97-03 BMW 5 SERIES E39 528I. I was wondering where all my torque had gone! I've never found a e30 without a vacuum leak. Finding your leak’s source can be more difficult than it sounds, and testing may be a time-consuming process, but fortunately, you can do the testing. Could be a vacuum leak or a true boost leak from a coupler or connection. WG Rattle on cold start-Vacuum leak? Login Register. Hello i have some "problems" and questions about my m42b18 e36 would love if someone could help and give your support :p 1- i used liqui molly intake cleanner "decarb" and got a lot of black some some a lot of cleanning done BUT now my idle rpm is around 1100/1200 rpm. A used engine was installed by the customer and now it sets a code 14 and will not rev up it goes into fuel cut. I can't get on the freeway since it doesn't go over 45 mph. [Archive] Rough Idle, Running Rich E30 That's great it started working maybe you just had a vacuum leak or bad connection at the ICV and fiddling with it to test. Now I have been driving it like that to and from work. 0L and early 4. If I leave the car off for 20-30 minutes it does bog but recovers faster. Free Shipping on orders $99 want or need to replace these items anyway to ensure it's free of fluid and vacuum leaks. My leak is audible, that's why I wonder if it could even be the solenoid? This also happened to me after going to stage 2 e30, although I haven't gotten around to installing my catless downpipe yet. If your engine has a fuel shut-off valve, ensure that this valve is closed when the engine is not in use to prevent fuel leaks. When it resumes running, the check engine light goes off. Finding your leak’s source can be more difficult than it sounds, and testing may be a time-consuming process, but fortunately, you can do the testing. DIY!” Why not let us know what you think by adding your own comment! Your opinion is as valid as anyone elses, so come on let us know what you think. There's a common problem with the BMW M50 engines as fitted to the E36 320i and 325i, and the E34 520i and 525i. This oil will typically migrate down the left timing cover saturate. If you mean that the engine is surging … or not keeping a steady speed during warm-up, this could be due to an intake system vacuum leak. Purge valve problems. Recorded today after it stalled once on cold start, then did this:. 1988 BMW E30 325i Vacuum Lines Stadia Productions p1423 Secondary Air System bank 1 code vacuum hose leak 97-03 BMW 5 SERIES E39 528I. This was the engine the E30 had always needed. Is it possible too much vacuum could cause this. bmw e30 | Find new and used Cars, Vans & Utes for Sale in Australia. But im going crazy here. E30 325i starter. Typically, this would be a cracked rubber intake boot, bellow or air hose. The cost to repair an engine that is misfiring varies based on the cause of the misfire. E32 - Brake Booster Vacuum Retrofit. We took some time to address the transmission before installation. As far as the boost leak testing, I have no intake stream leaks, at all. While it may be the. Grab one of these leakdown testers and become a gearhead MD! They’ll help you diagnose common engine maladies; including bad piston rings, leaking valves, and blown head gaskets. Checked for vacuum leaks, timing, temp sensor, air flow meter, throttle position sensor. E30 Vacuum leak - 'advanced' location under the throttle body. Another symptom of a problematic fuel injector o ring, which often comes soon after the smell, is a fuel leak. i think i have a vacuum leak. Possible Vacuum Leak- Hard Starting, Misfiring, Power Loss? Post by TheNooB » Mon Nov 05, 2012 8:08 pm Just did a one over of the hoses on the engine and the Fuel Pressure regulator hose on the intake side has plenty of cracks to go around. a vacuum gauge can help you determine if a line in leaking. the ECU doesn't like it, but it'll get used to it. My Garage. If I leave the car off for 20-30 minutes it does bog but recovers faster. Minimally invasive approaches offer alternatives to surgery in treating hemodynamically stable. If you have a leaking brake vacuum you will probably have two noticeable symptoms 1: Your brake pedal may feel a little stiffer and be harder to push 2: Your engine can have a rough idle and sometimes stutter… or even stall out. Complementary projects are replacing C191 connector, replacing injectors, replacing the throttle position switch, replacing vacuum lines under the throttle body, checking bottom of intake boot leaks, replacing the soft fuel lines, and setting valve clearances. FLIR is the world leader in the design, manufacture, and marketing of thermal imaging infrared cameras. 3 litre, four cylinder 16 valve. 6 litre BAUR engine. 0si, E83 X3, E85 Z4, E89 Z4, F10 528i N51/N52 All-in-one valve cover overhaul Preventative replacement saves time and trouble later on. When this happens you can use some Leak Stop to seal up some of the cracked areas, but you will need to replace the rack and pinion to stop the leaks entirely. This helps speed up the tuning process due to fewer sites to tune and also helps with the smoothness of the drivability of the car. Lambda Control #1 engine running too rich i suspected a vacuum leak i t-tapped a line with a vacuum gauge near like explained in bruno's site and instead of a 17-22in. I sprayed carb cleaner and the motor revs up a bit so I know there is a leak. Need vacuum diagram. Could be a vacuum leak or a true boost leak from a coupler or connection. A bad PCV valve may have a leak, which will cause excessive oil consumption. 3l vacuum. When a pool pump loses its prime, the pumps performance is diminished, causing the pool filter to also be inefficient. Kit gougeons de culasse201-43052. If you think the power brake booster check valve is faulty, there are steps you can take to test the valve. Therefore, it is important to check the oil in your BMW regularly, as low levels can signify leaks. Timing Belts. Owing to factors beyond the control of How to Automotive/Brian Eslick, it cannot guarantee against unauthorized modification of this information, or improper use of this information. This is where the vacuum event is created by the pulse velocity and the fresh air let into the system. If your engine has a fuel shut-off valve, ensure that this valve is closed when the engine is not in use to prevent fuel leaks. I replaced both before I found out it was a simple vacuum leak. pcv valve connection on rear of IM 3. The most complete engine light resource online. BWD designs, engineers, manufactures, and distributes more than 40,000 engine management products in some of the most advanced-technology categories. 01: H eat can cause brake drag in several ways but the most common scenario is due to brake fluid reaching and exceeding its boiling point. If the level of fluid is often low this can indicate a leak that needs repair somewhere in the system. If capping off a line causes higher vacuum, then there is a leak. A faulty mass airflow sensor will cause problems similar to low compression or low vacuum, and will also show symptoms similar to when your vehicle has low fuel pressure from a faulty fuel pump. I don't think you need too much vacuum anyway, enough for the gauge to show the vacuum and whether it's holding should be sufficient. com FREE DELIVERY possible on eligible purchases. I wouldn't rate it as likely, but it's possible for a leak there. 22re igniter bypass. This oil will typically migrate down the left timing cover saturate. To learn more about charcoal canister basic principle, see the video presentation below:. The fluid can also have a brown color if it has alot of age to it. Manufacturer and supplier of automotive equipment for racing and street performance applications. Source: AA1car. Boost Deviation Negative means you have a clogged intake, turbo actuator. php(143) : runtime-created function(1) : eval()'d code(156) : runtime-created function(1. com and will be directed to the Black Book Trade In estimator. These leaks can be more than just a messy inconvenience: a leaking valve cover gasket can cause a vacuum leak, which creates problems with the engine management system. Has a bit over 200,000 miles but ran well, albeit with a suspected vacuum leak that would make the idle a bit lumpy. Sometimes it's only for a second or two. The straw (or two ton weight as it were) that broke the camel's back came when I fired the engine up; I had a massive vacuum leak that turned out to be the brake booster itself. I thought most cars should dip their idle when the oil filler cap is removed due to the unmetered air let into the engine. 1994 E36 M3 3. It revved like a banshee and came on cam just when the 318i's 8 valve M40 was running out of puff. I did a valve adjustment yesterday and now my 87 325 runs better but still idles high or at least takes awhile to come back down to idle speed. Free Shipping on Ford Econoline Van Gas Tanks! New Replacement Steel Gas Tank for Ford Econoline E-Series from Liland Global Inc. Need vacuum diagram. For instance, low vacuum can indicate worn components (i. I just don't know what to change once it's apart. Why does my engine spit or backfire? First off, you need to determine whether it is backfiring out the exhaust or back up through the carb. After seeing a number of posts regarding this common and annoying oil leak, I decided to document the fix. this little port system was to ensure optional low end torque and top. Vacuum Leak vs. My E30 has been cutting out and the check engine light comes on. NOTE: Some documents contain blank pages. if you have a boost/vacuum leak after the throttle body you should have a wild idle. You can also find other images like wiring diagram, sensor location, fuel pump location, starter location, control module location, parts diagram, replacement parts, electrical diagram, repair manuals, engine diagram, engine scheme, wiring. The fuel pressure regulator has a small vacuum line attached to it that allows the pressure regulator to change the fuel pressure in the fuel loop depending upon the intake manifold pressure which changes as the throttle position changes. My Garage. keeps the TB from closing fully. To test for vacuum problems, start the engine and run it to medium speed, then turn off ignition and take your foot off the gas. I thought most cars should dip their idle when the oil filler cap is removed due to the unmetered air let into the engine. I did a valve adjustment yesterday and now my 87 325 runs better but still idles high or at least takes awhile to come back down to idle speed. It's lightweight and has many features that were decades ahead their time. Engine Bay Leaks. ) Idle (800-1200 rpm) Needle drops sharply on a regular rhythm Burnt valve, or a valve with clearance too tight Idle (800-1200 rpm) Needle drifts up & down, along with rpm drift Mixture off or small vacuum leak. Coolant leak (M20/E30) M20/M30/M50/Whatever! The housing won't back off the two mounting studs without running into what looks like a vacuum manifold that runs. Derived from oil and/or fuel additives. The vacuum gauge reads 23 in/hg. Thanks to its complete range of products, the company has become an essential player in multiple applications : instrumentation, Research & Developement, industry and semiconductors. Installing a new brake power booster from AutoZone not only helps you stop faster and shorter, but reassures your confidence on the road. Throttle Body Vacuum Leak Repair I took the car to Bavarian Motorsport and had a second smoke test. Loading Unsubscribe from 1ode2joy? BMW E46 & E39 Most Common Vacuum Leaks P0171 & P0174 - Duration: 15:12. Steady idle (800-1200 rpm) Steady, low reading, under 8 Vacuum leak (check brake booster, vacuum lines, etc. A very common source for a vacuum leak is the intake boot. My finances improved so I bought something else to drive, and I parked the little E30 for several years. A common rust spot is the front of the footwells. Smoke testing was mentioned in another thread on chasing vacuum leaks. Since parts from late model e30s and m3s can be installed on early model cars you should always check the VIN to find out the production information of any specific car. Typically, this would be a cracked rubber intake boot, bellow or air hose. Your symptoms do suggest a large vacuum leak in the intake system and this should be your starting point for diagnosis. A bad vacuum leak in the intake may also cause a lower vacuum. Below you will find the most complete list of Cadillac trouble codes available. Check for vacuum leaks with a smoke generator injecting smoke into any vacuum line and see where the smoke comes out. Ash Deposits Symptoms: Light brown deposits encrusted on the side or centre electrodes or both. It will operate just like it never had power steering, i. org is the source for sharing knowledge and information about enjoying, caring for, maintaining, repairing and owning the BMW e23, e32 and e38 7-series automobiles. Sticking inlet & exhaust valves, worn valve seats can also cause intermittent power loss or rough running. Weak material used in construction of the intake manifold air lever is the main common cause of Mercedes P2004 codes. You can gain as much as 25 HP and Torque at the rear wheels!. Test leaking Fuel Injectors. 30FF is underboost. Air leaks from a cracked intake boot can cause your E30 to run rough, poor idle, throttle surging, stumbling, hesitations, and misfires. Usually a fuel leak will produce a very strong odor which may signal an issue. BMW 325i, is (E30) Convertible Silicone Vacuum Hose Kit 1985-1991 The E30 325i kit replaces all the vacuum lines under the hood, the windshield washer hoses, and the four small diameter coolant lines that connect to the throttle body and coolant reservior. The FLIR GF77 is the next generation in methane detection, and is available for sale or for rent from MFE Rentals. Initially the S14 was a 2. Buy E Carpet. For vacuum boosters, failure will generally create a vacuum leak, and the vehicle may run roughly, become hard to start, misfire at engine idle, and exhibit poor fuel mileage. other times it will occilate between 1300 and 2000. Insufficient amounts can result from a restricted source and sometimes engine running problems. This can be replaced to a single vac line and a single checkvalve. A bad PCV valve may have a leak, which will cause excessive oil consumption. com] is not affiliated with Mercedes-Benz automobile manufacturer, a Daimler AG company. An easy way to tell the difference is the smell. If you're standing by the LF tire, there's 2 AL pipes that go into the throttle body from the R and one on the L. While it may be the. How to Fix an Engine That Stalls While Driving Easy step by step guide on how to repair an automotive engine that has stalled or intermittently stalls while driving, this information is presented in order of popularity and pertains to most vehicles. If the needle has moved, that means you have lost vacuum and thus have a leak in your AC system. If the level of fluid is often low this can indicate a leak that needs repair somewhere in the system. You can also find other images like wiring diagram, sensor location, fuel pump location, starter location, control module location, parts diagram, replacement parts, electrical diagram, repair manuals, engine diagram, engine scheme, wiring. com to find out how to mend vacuum cleaners and mobile phones, cars and DVD players, computers and tumble dryers, televisions and motorbikes, CD players and washing machines. 5 e30's 84, 87, 3 90's 1990 325i oil return tube Question: I just had this pipe replaced, too. The internal-combustion engine naturally produces a vacuum while running, and engineers have learned to use this vacuum to control a number of other components on a vehicle. The advantages are that you get to reduce the # of places that you might get a vac leak, and you end up with a $9 checkvalve instead of a $50 checkvalve. The vacuum at the brake booster should be around 16-20 inches. Chronology. Fike manufactures industrial safety products that protect people and organizations from combustible dust explosions, pressure-related explosions and industrial fire hazards. i didn't think much more of it until just recently when i got my a/c converted and charged. Buy and sell almost anything on Gumtree classifieds. Sometimes while driving in the traffic, I come across a car or two which would be dripping water-like drop from it's exhaust steadily in a break of 4-5 seconds. I agree with your general consensus to change the radiator cap, perhaps the excess pressure is whats pushing all the coolant out of the reservoir. How much does it cost to repair a vacuum leak in a BMW 325i? - Answered by a verified BMW Mechanic We use cookies to give you the best possible experience on our website. Unfortunately, these symptoms are also typical of vacuum leaks so in the event you lack access to a GT1 analyzer for a proper diagnosis the ICV should not be replaced until vacuum leaks have been eliminated as a possible cause. Possible Vacuum Leak- Hard Starting, Misfiring, Power Loss? Post by TheNooB » Mon Nov 05, 2012 8:08 pm Just did a one over of the hoses on the engine and the Fuel Pressure regulator hose on the intake side has plenty of cracks to go around. 13711726205 Air Intake Boot for BMW E30 325i 325ix 325is than OEM and required me to stretch the hose while clamping to ensure there wouldn't be a vacuum leak. If capping off a line causes higher vacuum, then there is a leak. com's diagram only shows eta TB's. vacuum pump should evacuate the entire sealed A/C system for 45 minutes. This was the engine the E30 had always needed. Initially the S14 was a 2. Notice: Undefined index: HTTP_REFERER in /home/baeletrica/www/4uhx3o/5yos. Free area of the engine apart you're going to want or need to replace these items anyway to ensure it's free of fluid and vacuum. Technical evolution 02, E21, E30, E36, to E46 (56k warning, lots of detail). Get the best deal for Car & Truck Vacuum Pumps for BMW from the largest online selection at eBay. Since parts from late model e30s and m3s can be installed on early model cars you should always check the VIN to find out the production information of any specific car. e30 BMW Car Pages: e30 Vacuum Leak. Buy and sell almost anything on Gumtree classifieds. Wait about a minute and a half and then apply your brakes. The answer was the S14 and the E30 M3 - a legendary combination. I would start by connecting a vacuum gauge and running the motor with the vacuum line to the booster disconnected and plugged. We had this in "Baurs For Sale" a year or so ago. Then these transmission fluid will be burnt like oil, creating the blue smoke coming out of exhaust. Leaking valve cover gaskets are fairly common on BMWs. Shop Best Buy for electronics, computers, appliances, cell phones, video games & more new tech. so the engine can have a more controlled exaust. Radiator caps are cheap, so replace it if you think it could be the problem. E30 Radiator Diagram ~ you are welcome to our site, this is images about e30 radiator diagram posted by Ella Brouillard in Diagram category on Sep 24, 2019. Choose from single- or dual-gauge leakdown testers that provide the precise, reliable data you need to pinpoint engine problems. It didn't run perfectly before, but one day it just seemed like something fucked up and it's been running badly ever since. That way you will never have to set an idle like the old carb days, the valve does it for you. Typically, this would be a cracked rubber intake boot, bellow or air hose. My 1984 BMW 318i has a too-high idle. Re: Possible Vacuum Leak- Hard Starting, Misfiring, Power Lo Post by Yoshi » Tue Nov 06, 2012 12:48 am there's a screw thing on the throttle body. The intake manifold takes incoming air from the intake and distributes it to each cylinder. Re-check all of your piping connections, especially from turbo > intercooler hot side, and intercooler > charge pipe cold side. Boost Deviation Intermittent means you most likely have a vacuum leak somewhere. Air leaks from a cracked intake boot can cause your E30 to run rough, poor idle, throttle surging, stumbling, hesitations, and misfires. Chronology. I plugged the new one in and the idle fell to where it sits now at about 9 hundo. The intake code means its leaking from the intake,bad gaskets, or a vacuum leak. check for bad gaskets on intake manifold. On thing I might mention is that not all vacuum leak s are at the engine. After getting it to run for a while, it now runs a bit better but now won't accelerate smoothly. Notice: Undefined index: HTTP_REFERER in /home/baeletrica/www/8laqm/d91v. It's a restrictor type system. This engine is a very popular representative of M54 series which also includes M54B22, M54B30 and S54B32 motors. 5L Turbo Powertrain 87 bmw e30, 2013 BRZ. If in doubt about the integrity of any vacuum hose, swap it over for a new one. Jumping the hoses at the pump keeps the pump from running dry and seizing, causing all accessories to fail. Find great deals for E Carpet on eBay. Finding your leak’s source can be more difficult than it sounds, and testing may be a time-consuming process, but fortunately, you can do the testing. Underneath is the master cylinder, reservoir, and brake booster. ade of waterproof fabric, durable to use. Find out how to clean your small engine carburetor. I seem to also be having a boost leak, I already checked the lower - > upper charge pipe and the connection to the intake. Inspect every rubber hose, boot and fitting that carries air. BMW E30 Coolant Temp Sensor Replacement Jared Fenton i have an 89 e30 325i, im on a quest to solve the idle Vacuum_Leaks/21 -FUEL -Vacuum_Leaks. Head Gaskets. Boost Deviation Intermittent means you most likely have a vacuum leak somewhere. the same as i told you that my leak and dripping under my BMW 325i, can the dealer fix it for no charge ?please be advise. 0i: Engine Parts - Amazon. Throttle Body Vacuum Leak Repair I took the car to Bavarian Motorsport and had a second smoke test. Would anyone happen to know where I can get new ones online? Or at least get me a part number? RealOEM. Locate it, unplug the wire harness, and remove the 2 screws that holds it onto the intake pipe. Unique and compact design will fit perfectly into your tankless water heater. If you're standing by the LF tire, there's 2 AL pipes that go into the throttle body from the R and one on the L. Typically, this would be a cracked rubber intake boot, bellow or air hose. You should feel the vacuum boost on at least two brake applications. Cut Your Own Hair; Buzzcut styles; Best Hair Clippers; Dyeing hair; Hair care. The dealership tells me I need a new engine to replace it. hey i read your blog on bmw e30 pretty good stuff and a lot of need to know if you own one of these cars. 7 engine has 178000 miles starts runs not drivable due to vacuum leaks asking 2500 no low ballers at all plz dont need help selling serious buyers only Plz call. SharpTekSupply. If there is a leak, you will often hear an increased noise volume near the engine when you start the car. BMW E30 3 Series Air Conditioning Recharging and Repair Pelican Technical Article: BMW E30 3 Series Air Conditioning Recharging and Repair You have a leak in your. Excessive oil consumption and leak. Leaking valve cover gaskets are fairly common on BMWs. The Miller MAF conversion is unrivalled in quality, performance, and ease of installation. To diagnose a cooling system problem, start by checking the radiator cap for damage, rust, or grime that could be preventing the radiator from releasing excess pressure. Air leaks from a cracked intake boot can cause your E30 to run rough, poor idle, throttle surging, stumbling, hesitations, and misfires. Top End Performance has been your source for the best prices on brand name, top quality car parts since 1994. I also recommend to replace the o-ring from the plenum to air horns, the o-rings from air horns to throttle bodies and the o-rings that serve the idle air screws and the final o-ring the one that goes in the large brass screw that is between throttle bodies. I check it every two weeks. Leaks can additionally happen around doors or sunroofs that are not sealed adequately. The vacuum system has lots of different parts, so it can take some time to find the actual leak. com] is not affiliated with Mercedes-Benz automobile manufacturer, a Daimler AG company. That went really well and I'm quite pleased. If you recognize any of these warning signs, contact a mechanic as soon as possible so they can replace the valve cover gasket if needed. If parts break or become worn and aren’t replaced or repaired, this could result in harmful gases potentially being released around the driver, passengers, and surrounding environment, which can be a dangerous situation. The vacuum at the brake booster should be around 16-20 inches. I haven't had much time to dig real deep into it, but I did a quick compression test and all cylinders came back between 155-165. Use an electronic leak detector or florescent dye to check for leaks. Stability / Suspension - BMW E60 DIY. Like any other vehicle BMW’s also have problems, the only difference is, they’re something more expensive to fix. The initial model was available in a coupé body style, with a convertible body style added soon after. This includes the crankcase ventilation, intake and idle control circuits. Came early, fit perfect, no more vacuum leaks. ade of waterproof fabric, durable to use. Velcro fastening and drawstrings to be attached to any seat. 0L - Possible vacuum leak. Ash Deposits Symptoms: Light brown deposits encrusted on the side or centre electrodes or both. Presuming a fuel injected car, I'd guess the answer is that you have a fuel leak. Shop for discount Boosted here. The Edwards 30 E2M30 has superior vapor handling capabilities, while operating quietly. There's a number of different rubber intake boot designs for the E30 over the years. [Archive] Rough Idle, Running Rich E30 That's great it started working maybe you just had a vacuum leak or bad connection at the ICV and fiddling with it to test. That pretty much confirms that underboost is either from a major leak, which I don't seem to have, or wastegates. WILLIAMS October 31, 2015 at 3:58 am. You can also find other images like wiring diagram, sensor location, fuel pump location, starter location, control module location, parts diagram, replacement parts, electrical diagram, repair manuals, engine diagram, engine scheme, wiring. Buy E Carpet. However, if you notice an oil leak from the valve cover area it is best to get it replaced before any other issues arise. I may have seen this before. Excessive oil consumption and leak. Reliable fast, fun. Other than that, there is the Idle Control Unit computer and the Idle Control Adjustment Valve, all which control the idle. Hardest part was cutting off the old studs but a 3″ cut off wheel made short work of them. Engine Blows Oil Out Of Dipstick Tube. Vacuum Leak vs. The valve cover seal replacement is an easy task, as shown in this technical article. I ended up using a cheap $16 vacuum pump that you hook up to an air compressor. Just replaced the valve cover gasket as it was completely perished. And since vacuum and air pressure within the engine are closely managed, any air leak can be a serious problem. I recently got it going again, and replaced some fuel lines, and I replaced the fuel pump relay with a new unit. Usually a fuel leak will produce a very strong odor which may signal an issue. Since 1983 we have been the BMW Parts headquarters for replacement parts, performance parts, and tools. Check all of your vacuum lines, they tend to frey and crack. E30 Vacuum leak - 'advanced' location under the throttle body. BMW 325i, is (E30) Convertible Silicone Vacuum Hose Kit 1985-1991 The E30 325i kit replaces all the vacuum lines under the hood, the windshield washer hoses, and the four small diameter coolant lines that connect to the throttle body and coolant reservior. Its an 84 318i. Cold hose has weld on barbs, compressor adapters, and much more on the specialty fittings page. Bmw Engine Mount Replacement Cost. This device is located between the air filter box and the intake manifold. Ted's House e30 BMW Car Pages: Vacuum Leaks. Re: Where could a vacuum leak be at? I responded to your thread but I'll restate, yes I am very happy with the car. This video is pretty straight forward in it's approach to finding a vacuum leak. A rear main seal leak can cause some big problems in your vehicle. If you have any questions, please call 1-877-ADVANCE (238-2623) or visit any Advance Auto Parts store. A P0171 code does not indicate a vacuum leak; it indicates a dirty mass air flow sensor. Koing, Tha throttle body gaskets are known for going bad, so replacing them and using the turner gasket is a good idea. Although a vacuum leak can result in a cycling high/low RPM at idle, vacuum problems tend to disappear under load because there is very little vacuum in the manifold under load, hence a vacuum leak does not leak much and affect anything when under load. The cost to repair an engine that is misfiring varies based on the cause of the misfire. the intake manifold gasket on the head. E30 A/C Rejuvenation, Part II: The Hack Gets Lucky I found a local E30 guy on Craigslist selling a/c stuff he’d yanked from his car to turn it into a track rat.