Porsche vacuum leak. Also true that Porsche only sells the whole cap.

Porsche vacuum leak Dec 31, 2016 · I like to use a cigar and block air filter at intake before the AFM. 8)mm ID, 19mm OD. Mar 28, 2024 · As some of you are aware, there is a vacuum line connected to the water pump, and there is an issue where the water pump will leak coolant into the vacuum line, contaminating everything in the vacuum circuit. I wouldn't try and fix it myself, unless I had a garage full of tools, and a lot of free time. I dont even know how that happens. - with hand pump and power supply test COV to ensure that it switches vacuum. Durametric Porsche diagnostic service Colcheste Mar 22, 2019 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Porsche 924 Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. Finally found leaks in the vacuum reservoir. This also works on turbos. not The most common reasons a Porsche Boxster has a vacuum leak are leaking vacuum hoses, leaking gaskets and seals, or bad actuators and valves. Made a smoke machine (only took 18 months) and found 0 leaks. The inspection of the car uncovered a very small oil seepage at the bolt mounting the vacuum pump. 02 Aug 29, 2011 · 928 Forum - Transmission vacuum leak found ! - Hello all, Found the reason for my 84 euro a/t to have hard shifting. At long last I found and fixed my hesitation problem, a vacuum/air leak. Jun 2, 2016 · Vacuum leak CTT Welcome to RennTech. The most common reasons a Porsche Cayenne has a vacuum leak are leaking vacuum hoses, leaking gaskets and seals, or bad actuators and valves. However, vacuum leaks can be caused by more serious problems like a cracked intake manifold, which can cost up to 1000$ to fix. The short piece of hose is 15mm ID, 22mm OD. My shifting is harsh (choppy) between all gears, so It seems to fit the profile of a potential "vacuum leak". _____ Porsche Macan Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. I have a hissing sound coming from that area,. I’ve gone through my manuals and google searched but can’t find where is the best port to hook up the mityvac for vacuum pressure check and, if there is a leak, hook up a smoke generator. 0 % 40% of the time it's the Mar 22, 2008 · My car had a vacuum leak from the previous owner letting the car sit, and having some fluid crystalize. 2022 Porsche Macan Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. 223 Likes, TikTok video from Zen Low (@zenlow69): “Learn effective techniques to find vacuum leaks in your Porsche 944 Turbo engine using smoke testing. Nov 4, 2018 · So it seems like there is vacuum available, not sure if there is enough. Apr 4, 2021 · I suspect a vacuum leak on my ‘87 3. i have a 85 3. Tranny vacuum leak I was looking to hopefully replace the vacuum hose that runs from the modulator on the transmission to the hard line that connects to the front/top of the motor. The rpm picks up and smooths out. Pelican parts or somebody use to sell this rubber diaphram for something like $20 but if it can't be found anywhere else and your trying to trace down a vacuum leak this could be the good (only) deal around without having to replace the whole (stupid The most common reasons a 2019 Porsche Macan has a vacuum leak are leaking vacuum hoses, leaking gaskets and seals, or bad actuators and valves. Works great, located many vacuum leaks on mine and other Pelicans this way. 2 Adjusted valves, new ignition system (even coil) and it is still idling funny. Via the AOS intake hose,. Reply Porsche 911 Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. Seems like a bit of a pain to get to, any feedback or DIY on that? I was thinking of possibly JB welding(or honda bond) a piece of Brass tubing in to it, might be easier? does anyone know Porsche Cayman Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. Confirm the line and elbow hold vacuum. Oct 14, 2023 · Don Eilenberger - general cook and bottlewasher. It has been way too long since I've updated everyone on the Porsche 924 turbo project. 4 days ago · Yes, all vacuum actuators should hold vacuum. I use the "T" fitting for the cruise control. Too much of a leak makes it impossible to keep the idle down by adjusting the air bleed screw. As far as I can tell they nearly all use a vane-based design manufactured by pierburg. Nov 13, 2021 · If you need to add a lot, you have a leak that needs to be addressed. this one just has one crack, but some have lots, like 20. didnt really solve the problem. If there is a vacuum leak when the running motor sucks in the starter fluid it will rev up a little and tell you you are close. If it doesn’t hold vacuum then the component is the source of the vacuum leak. So it depends where the vacuum leak occurs. 0 % 40% of the time it's the Feb 17, 2003 · Air leaks simply increase the pressure in the manfold and the MPS sets the mixture appropriately. When your engine starts to run rough there are the three areas you need to check; fuel, spark and oxygen. Though one source of leak was a spark plug which was not properly torqued (my bad). Get expert tips now! #troubleshooting #mechanic #porsche #944turbo”. But “when” as I understand it. , and Author of: 101 Projects for Your BMW 3-Series • 101 Projects for Your Porsche 911 • How to Rebuild & Modify Porsche 911 Engines • 101 Projects for Your Porsche Boxster & Cayman • 101 Projects for Your Porsche 996 / 997 • SPEED READ: Porsche 911 Feb 21, 2018 · Thanks for the tips guys, much appreciated. An air compressor, a shop vac, house vac , or even an air mattress pump could do similar task. My vacuum Canister only pump's up to maybe 7-8 inches of vacuum. 89 cents finally find a leak and fixing it PRICELESS. May 4, 2021 · I believe the S2 has a AFM, not a MAF, and you have to be a bit careful cleaning both, As Steve suggests above the Idle Control Valve could be kaput, they do come apart and there is an O ring on the body that leaks air a lot and around the cable connector, you will not want to buy a new one, 964 606 160 00 £561. Live stream data shows random 2019 Porsche 911 Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. It is difficult but not impossible to torque the allan head bolts, try that first, bet you will find they are all loose. Checked around area of pump and spraying carb cleaner near this area engine revs pick up. 1. Idle control valve seems to leak like a sieve. The hiss on a second look does actually come from that area, and with the lean codes, the immovable oil cap, the oil around the AOS pipe and the rough idle, it all points to it. At the transmission there is about an 12 inch vaccum hose that goes up above the torque tube into a real small metal line. Apr 2, 2023 · Because a vacuum leak is essentially a leak in an enclosed air system, the sound it generates can be a big clue that something is wrong. PCM software needs to be updated, Vacuum leaks (Intake Manifold Gaskets, vacuum hoses, PCV hoses, etc. Then start looking at vacuum lines from the oil fill tube and the tubes that go to the back of the air filter box. Jun 16, 2022 · Hi all, I strongly suspect a vacuum leak as one of the issues with my US 83 911SC. org Porsche, Porsche Crest Nov 23, 2012 · All Activity; Home ; 911 ; 996 Series (Carrera, GT3-1, TT, GT2) (MY1998 - 2005) 996 Series (Carrera, Carrera 4, Carrera 4S, Targa) Small vacuum leak Apr 4, 2024 · Hey Guys. 0 % 40% of the time it's the Porsche 968 Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. I will try to get hold of a smoke machine to test for vacuum leaks, but I am not sure where is the best place to connect it ? 1986 Porsche 911 3. Then use either the Porsche stuff, or something like Zerex G40. Glad that the AOS is most likely the issue - it makes total sense. Mar 9, 2023 · In most cases, a vacuum leak is caused by a cracked or broken vacuum hose, which can often be fixed for under 10$. To quickly test both the line/elbow together, remove the elbow from the actuator and plug it. troubleshooting and fault diagnosis. Mar 14, 2017 · At about 10,000 miles I started experiencing a severe loss of power and reduction in boost by about 3-4lbs. I am sure you could do it yourself, and I am not sure the extend of your vacuum leak, but my leak took about a week to fix. Spray a little, wait 10 seconds, then move on. And I know that it is a common problem with these cars. To test the O2 sensor - 1. With all of the vacuum lines, it would be borderline needle-in the-haystack find. 0 % 40% of the time it's the In this episode Tony Callas of Callas Rennsport will familiarize the audience with simple, but effective Engine Vacuum Leak testing methods: CR Tools Crankca Feb 6, 2025 · Cayenne 955-957 2003-2010 - well no wonder i have a vac leak/running lean - looks like this T snapped. Additionally, the engine can be pressurized, as outlined in the Porsche workshop service manual, to help discover any leaky connections that may be causing high idle issues. Jun 30, 2022 · The most common reasons a 2018 Porsche Panamera has a vacuum leak are leaking vacuum hoses, leaking gaskets and seals, or bad actuators and valves. So prob have to change that out. I would use a boost tester as a better test for a turbo, inasmuch as any minor tears in one of the rubber boots or hoses will push out with boost pressure. Glad to hear you found the leak -- the vacuum lines on the Cayenne are very complex, and can cause weird running issues when there are leaks. ) But, I think I have found the issue. you wonder why the HC is high, why you need to turn in the idle speed screw all the way and it still idles high, etc. (also didn't have the throttle open. I am still having backfires. Can you drive with a vacuum leak? A small vacuum leak is not super-dangerous for your engine to drive with. Almost too good, found a bunch of annoying vacuum leaks. Vacuum Leak. Sep 6, 2013 · made my own little vacuum leak plug today, from an old pill container. A leak will usually leave a white residue. any idea where i have the leak Jan 28, 2024 · I would like to do a vacuum leak check and a smoke generator check. Cost 0. Between working in South Carolina, living in Colorado, and flying bac Explore common causes of vacuum leaks in your 2020 Porsche 911, from hoses to gaskets. 2016 Porsche Cayenne Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. The most common reasons a 2025 Porsche Cayenne has a vacuum leak are leaking vacuum hoses, leaking gaskets and seals, or bad actuators and valves. I replaced a bunch of vacuum lines a few years ago, the old ones were pretty crusty Sep 19, 2024 · All modern direct injection engines need a vacuum pump to supply vacuum to the brake booster, turbo wastegates, and crankcase ventilation system. Vacuum leaks (unmetered air) Fuel delivery problems (injector, pump, or accumulator) Fuel pressure problems (out of spec system, control, and residual pressures) Emissions issues (mixture too rich or too lean) Electrical component failures (Lambda ECU, OXS relay, O2 sensor, temp switches) Plastic Intake Airbox issues caused by: 2024 Porsche Cayenne Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. Jun 1, 2017 · Any pickup in idle speed indicates a vacuum leak. Feb 28, 2013 · Porsche / BMW / Mercedes / Audi There was a restrictor missing in the breather hose so that removing the cap created a massive vacuum leak, killing the engine. First Start at the y-tube venture and make sure it isn't separated or cracked, and follow it up to the brake booster and then in the other direction to the j-boot and throttle body looking for problems. Is there a common problem area for vacuum leaks. You don't get a lean mixture. Can also hear the sucking noise from the valve at the back of the intake manifold, the brake booster take off point. It’s used on Japanese DI engines too. Jul 13, 2009 · It is true they sometimes get a small hole in them and can have an effect on idle and such. I have a vacuum leak I think, and I am thinking this is at least 1 of them,if not the only one. I Jun 10, 2015 · If the vacuum to the brake booster is compromised or affected by the said 'vacuum leak', brake performance would be less efficient. Jan 23, 2025 · Hi I am about to buy a 981 Cayman S. Get estimated repair costs and find certified RepairPal shops near you. 7 manual 35k miles a couple month ago. 2008 Porsche Cayenne Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. I have another engine in pieces so tested the reservoir on that one and it had a leak in the same place. Also check the brake booster vacuum hose leading from engine bay to center tunnel, as per John Walker: vacuum leak you probably didn't ever think of _____ Porsche 718 Cayman Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. youtube. 2, been chasing a vacuum leak for a while now. Not “if” …. Jan 9, 2025 · One poor man's way to check for vacuum leaks is to artificially create a leak and see how the engine reacts. 9L PDK w/mild mods (white and blue), 2012 BMW R1200R motor-bicycle - a real BMW (red) sadly sold, and about 55 cars, motorcycles, boats so far. If they don't, either they have failed or the rubber elbow or the line. A stuck icv would not cause what you are seeing. Porsche 924 Vacuum leak repair using a smoke tester! The Porsche 924 has had a rough idle and appears hot on the temperature gauge since I bought the car. They have twice the wall thickness compared to regular vacuum hose of the same ID. Get a bottle of leak test solution or use very soapy water to help find the leaks. Over 3 trips to the dealership Porsche replaced all diverter valves, solenoids in the waste gate and checked the entire piping from the turbo to the manifold, finding no leaks. now when i have the car running, and take off the oil cap the car stalls. Tony Jan 5, 2016 · Running a smoke test for vacuum leaks requires a smoke generating machine and attachements: These devices produce a very small stream of smoke that passes through small wand attachments that can be run along vacuum lines and connections while looking for the smoke stream to suddenly disappear, indicating a vacuum leak. If you ge I know I have a vacuum leak because I can hear it. To induce a vacuum leak into the intake manifold, you can disconnect one or more of the hoses that connect to the intake. There was no evidence of oil coming from higher up so I’m not sure where the oil is coming from but the seller is saying it’s nothing to worry about. Nov 25, 2024 · Vacuum leaks can sometimes cause poor running conditions. Mar 6, 2007 · Someone told me that that indicates a vacuum leak and therefore a boost "leak" also. org Community, Guest. In this episode I show you where my 924S Porsche is Leaking Vacuum, the parts I'm going to use to fix it, and how to remove the intake manifold. Mechanic told me. Also found a few interesting leaks on the valve cover (16V). Sep 27, 2017 · Sounds like you could have a major vacuum leaks, so check all of the large vacuum lines. submitted by Hugh Ewing [YOS] on Mon 06/10/2019 06:43 pm. 2022 Porsche Cayenne Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. Since the 911 motors are famous for vacuum leaks, and even a little unmetered air can have profound effects on the motor, doing a thorough vacuum leak test is very important. The longer hose is 12 (11. I have a vacuum leak somewhere ive been chasing for years. Also true that Porsche only sells the whole cap. There are many great features available to you once you register at RennTech. And wondering if there is a leak somewhere bleeding off the vacuum. Maybe my booster is going downriver. 0 % 40% of the time it's the vacuum leak you probably didn't ever think of been seeing a lot of these. Mar 6, 2025 · 944 Turbo & Turbo S - Smoke vacuum test 944 Turbo S - Hello everyone: I have a vacuum leak in my 944 Turbo S. 0 % 40% of the time it's the Feb 19, 2025 · What we learned is that when there is an opening in the sealed vacuum line system, the vacuum pump turns into a crankcase air compressor. No wonder the car surges like crazy. The big vacuum hose that goes to the cruise control actuator is not hooked up to anything. ), Faulty Mass Airflow (MAF) Sensor, Plugged Fuel Filter or weak Fuel Pump, Plugged or dirty Fuel Injectors: P0200: Defective Fuel Injector, Faulty or corroded Fuel Injector, wiring, and/or connections, Plugged Fuel Injector, Dirt in the Fuel Apr 3, 2022 · If there is no change in the running of the engine, then you might have a crankcase vacuum leak somewhere (sometimes caused by a failing air-oil separator--see Pelican Technical Article: Porsche 911 Air Oil Separator). Could feel the dead spot under constant acceleration. Long story short, I have irregular misfire (mostly in cylinder 1, 2, and 4, but on all cylinder occasionally), No CODE at all. 2. Porsche (Past Oct 28, 2024 · If the supply network holds vacuum, for each COV: - using hand pump, test that the vacuum actuated device on the switched-side of the COV holds vacuum. I have read about so many threads that talk about vacuum leaks in Boxsters. The trick as you have demonstrated is to create a positive air pressure inside the system (engine) and spray soapy water at suspected areas. i replaced the 2 hoses, 1, the crankcase to oil tank and 2 throttle body to oil tank. Porsche, Porsche Crest Over 150,000 of your fellow Porsche owners already have. Aug 26, 2019 · I have a durametric and recon the symptoms related to vacuum line leak. The most common reasons a Porsche Cayenne has rough idle are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil. Remove brake booster line and connect a hose to supply compressed air regulated at 3-8 psi going into to airbox. Wayne R. Oct 9, 2024 · Like all modern cars the Porsche Cayenne uses vacuum for several key functions on the engine and other systems. The pump is an easy swap, 3 bolts and two vacuum connections. What air leaks DO affect in D-Jet is your ability to set the idle speed. Last edited by SlakkerRacingDev; Feb 19, 2025 at 08:16 PM . 2021 Porsche 718 Boxster Vacuum Leak Attach small tube to a can of Starter Fluid, then go around and with small squirts in different places close to possible vacuum leak areas. The coolant regulator/switch over valve also leaks coolant and is connected to the vacuum circuit. The most common reasons a 2017 Porsche Panamera has a vacuum leak are leaking vacuum hoses, leaking gaskets and seals, or bad actuators and valves. behind the intake manifold. Porsche 718 Boxster Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. Feb 27, 2025 · A smoke machine will help find vacuum leaks in the system. I've had a couple of these cars, but previously haven't really noticed if the guage on previous ones actually sat at the dot on the dial--full left or whether my condition is normal or within specs. Jul 20, 2022 · This video shows you how to smoke test your Porsche for a vacuum leak. Dempsey, Founder, Pelican Parts Inc. 0 % 40% of the time it's the Porsche 928 Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. ) If the idle shoots up sharply at idle, you found a leak. The most common reasons a 2015 Porsche Macan has a vacuum leak are leaking vacuum hoses, leaking gaskets and seals, or bad actuators and valves. 0 % 40% of the time it's the Dec 3, 2021 · Join this channel to get access to perks:https://www. 2020 Porsche 911 Vacuum Leak: Causes & Repair Costs May 22, 2015 · Testing for vacuum leaks can be accomplished by using an automotive stethoscope to inspect various vacuum line connections. What hoses should I look at specifically? Porsche Panamera Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. 2011 Porsche Cayenne Twin-Turbo (white and black), 2009 Boxster 2. I would like to perform a smoke test. com/channel/UCvIKNFbE_iWnpFFh9qy9ZvA/join Atlassian uses cookies to improve your browsing experience, perform analytics and research, and conduct advertising. As for the Haynes manuals, I always keep one handy for wiping my a$$. I immediately thought boost/vacuum leak. the brake booster vacuum hose, between the left side of the transmission mount and the body. The Cayenne motors are not known for vacuum leaks, but even a little unmetered air can have profound effects on the motor, so doing a thorough vacuum leak test is very important. Jan 4, 2012 · Here is how I tested my '78. Here's an article going over the most common Cayenne leaks. If you have to drain the system to fix the leak, you will want to use a vacuum filler (something like the airlift tool) to refill so you don't get air pockets. Join PCA Today! - Porsche AG. Jan 8, 2023 · FWIW - the pop-off valve was added as a stop-gap to when a CIS backfires. 2019 Porsche 911 Vacuum Leak 2021 Porsche 718 Boxster Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. I did a pretty good smoke test just after the TB,. . Mar 10, 2018 · Have a vacuum leak in your car? I'll walk you through the P2404 and P0455 check engine codes, which I encountered on my 2008 Porsche Cayenne Turbo. Aug 11, 2024 · Hello all, I've got a 2016 981 Cayman base 2. There are two primary vacuum systems on the Boxster engine: crankcase vacuum and intake manifold vacuum. !! 2021 Porsche Cayenne Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. If it were my car, the first thing I’d do is bust out the Dremel and clean out the hole with a shop-vac pulling as much of the crumbs and such out while ya do it. 0 % 40% of the time it's the The most common reasons a 2025 Porsche 911 has a vacuum leak are leaking vacuum hoses, leaking gaskets and seals, or bad actuators and valves. Whether one of the pipes has been damaged or you have a cracked gasket of some type, if there is a small enough leak in the line, the air will hiss out just like it would from any other pressured air system. the only smoke I seen was coming out of my airbox filter housing. Interestingly, my purge lines under the throttle body also found their way into the water pump pulley and got chewed up. Jun 12, 2018 · Finding the source of a minor vacuum leak leads to my breaking a bunch of old plastic on the Porsche Boxster! Jun 13, 2008 · Once you pressurize it to 10 psi, use a spray bottle filled with soapy water, 10 drops to one cup of water, and where there are bubbles, there is a vacuum leak. Mar 21, 2020 · Ahh Thats Great news on the Data 78F350 TY,. The fuel mixture is more sensitive to vacuum leak compared to a brake booster. _____ Feb 2, 2017 · This is on the driver side intake manifold. 2 911, but can’t find it by inspecting visually. Accept all cookies to indicate that you agree to our use of cookies on your device. 2020 Porsche Cayenne Vacuum Leak? RepairPal will help you figure out whether it's your Vacuum Hoses, Leaking Gaskets and Seals, Bad Actuators and Valves, or something else. We get to grips with the Porsche 911 vacuum system and its many ways to leak! PORSCHE 911 Vacuum Leak Diagnosis & Fix! (EPISODE 65) Get your Ancel Diagnostic Smoke Test HERE! In most cases, you won't be lucky finding the leaks. Thanks Apr 28, 2023 · The engine I am working on is out of the car, I replaced all the vacuum lines and checked all the components with smoke and a vacuum tester but was still not able to hold a vacuum. Can anyone please point these out, hopefully with pics. I looked all over the top of the engine, but I could not find it. Make sure your IAC is clean and operating. Here is the link to the best smoke tester for the money I found according to the revie The most common reasons a Porsche 944 has a vacuum leak are leaking vacuum hoses, leaking gaskets and seals, or bad actuators and valves. Nov 23, 2007 · It's easier to just unplug the O2 sensor and idle control valve, and spray engine starting fluid (ether) around any suspicious points (intake manifold gaskets, injector O-rings, rubber boots, vacuum lines, etc. Worked like a charm. A couple reasons: 1. However, not all vacuum leak in the engine bay would cause a poor brake performance. Can someone explain where this brake vacuum line comes up to the engine? When i spray a littel starting fluid in the area below the heater fan, left of the throttle body, and above the warm up valve to the back and down. xftkvd penxn hymoqug jamcjhax csrn szh hkls kxnn ufjdbb nijzeqjhm hemgl iadib gmxzz embw hvrhhyqo