Golf IV R32 :: 3mm Or 4mm Vacuum Hoses?
Mar 29, 2013
I'm going to finally go through all the old rubber cloth shielded vacuum hoses and going to replace them with Samco silicone but not sure if I should use 3 or 4mm hose?
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Mar 29, 2013
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Ford Aerostar :: A/C Blowing Through Defrost Only - Where Are Vacuum Hoses
My 2005 Freestar (not the Freestyle) a/c is working properly except that it is only blowing through the defrost. I've read other posts about it being a leaking vacuum system on other ford vehicles that cause this problem.
1) I'd like to confirm that this Freestar a/c works on a vacuum system to open the a/c duct doors.
2) If it is, where are the vacuum hoses located? I'd like to check them to see if they are connected or if they have a hole.
GTI 337/20th Anniversary :: Broken Vacuum Hoses Causing Misfires
so i've had my 337 for a couple months now and when i first got it i found 2 broken vacuum hoses that were causing misfires. once i got those replaced my CEL went off and seemed to be running fine other than from time to time when i started it up my idle would be around 1.2k rpms and then after a couple miles itd settle down to 750-800 rpms but it wasn't rock solid, so obviously there is still something wrong.
on my drive home tonight from work i was in the mood for some spirited driving but when i'd hit the gas i could feel some hesitation through the powerband at wide open throttle. when i got home i turned it off, and started it back up to see if it was idling funny and when it ignited the rpms jumped to almost 2k and immediately fell back down to 1.2k.
My thoughts are its either a vacuum leak again, bad/dirty maf, dirty throttle body, or a boost leak.
Ford Ranger / B-Series :: 2002 - IMCR Vacuum Lines - Where Hoses Go Off
Looking for a pic of where the 2 vacuum lines go off the IMCR on a 2002 ranger 2.3. Changed engines now not sure where these hoses go.
View 2 RepliesGolf V R32 :: Hoses At The Windshield Are Chewed Up, Can't Drive The Car
Was just looking under the hood of the 08 R32 I just bought and noticed that a couple of smaller diameter (thumb size) hoses at the windshield had chew marks on it. Took it to my local shop. The mechanic called me a little later and said that there are actually 3 hoses chewed up, a third is down below, and that there is a nationwide back order on all three of these hoses with no estimate of when new hoses will arrive and it is unlikely that any dealer has these in stock. My mechanic said that he's been around long enough to know that when he sees a situation like this, there will likely be a recall on these hoses.
My mechanic said my hoses are pretty chewed up and the car is unsafe to drive, certainly not for long drives in hot weather. I am taking the car to a race shop nearby to install my Milltek exhaust and they have some ability to custom make hoses. I hope they can do it.
Golf IV / Jetta IV :: Function Of Two White Hoses Under The Car?
What's the function of those two white hoses under my car?
View 2 RepliesGolf IV R32 :: Where To Put Vacuum Check Valve For FI
I need to put a check valve into the vacuum line that runs to the gas tank. I know that this line is somewhere in the rear passenger side of the engine compartment, but there's so many lines there that I find myself confused when I look at it.
View 1 RepliesGolf IV R32 :: Common Vacuum Leaks
What are some common mk4 r32 vacuum leaks. And yes I did search. Im checking my car for any leaks that vagcom would potentially not detect.
View 9 RepliesGolf IV / Jetta IV :: Vacuum Leak - Car Seemed To Be Lacking At Low End
I suspected I had a vacuum leak somewhere, was told it wasn't likely. Just installed a tune in the evening drove it 15 miles was pretty sure I had one.
Installed Forge DV the next morning it was evident I had one by the sound the DV was Making. I checked the car head to toe and found two lines had broken apart. I replaced them will silicone lines and it appeared to be fixed.
Drove it 5 miles and the 'turkey sound' came back. (This is the sound that I originally heard and confirmed I had a vacuum leak somewhere)
I searched all over there car, had a second set of eyes that was mechanically inclined and we found nothing obviously causing a problem. We ended up just taking off the Forge DV and testing it by hand it held up and re installing it and securing it.
Strange enough that fixed the problem (no other hoses were tampered with while we were inspecting)
Drove the car home about 15 miles and stopped in a drive through. At some point while sitting something happened. Cause when I left the drive through then I noticed the car seemed to be lacking at low end, turned down the music and I could hear the turkey call. I left the car alone for the night. Thought maybe heat jas a factor in this. Drove it this morning and it was just how I left it. I inspected the hoses and found no change. I took the DV off and inspected then re installed. I noticed the turkey call was not as predominant but still completely present.
Golf V R32 :: Air Leaking Noise When Car Is On - Vacuum Port?
I noticed this on my A3... This weekend I was working on the car and heard air leaking somewhere when the car was on. I pinpoint the leak on the upper left side of the engine where to my guess is a vacuum port. This hose leads to the brake booster. Apparently it's a plastic hose and it had split open near the port. I cut out a section of it and used some coolant hose I had laying around from my MKIV gti. Just thought I let you 3.2's know in case you want to check it out.
What is the function of this? is it to provide vacuum to the brakes? I pulled the hose while the engine was running and it wanted to die just to see if it would cause any issues. Also I may add that before this I've had some engine stuttering at idle where the rpm needle would fluctuate from like 600 rpm to 500 rpm and back up at times and that after replacing that bad section of hose it seems to have corrected that issue as well. I know there have been some stuttering issues around here and have heard that replacing the battery has worked at times.
Golf V R32 :: Exhaust Or Vacuum Leak At Higher RPMs
Recently bought a MKV R32. Already had a magnaflow cbe, k&n panel filter, and some emissions stuff taken out from under the hood. not sure if it has been flashed, waiting to get a vagcom. think it is pretty stock other than that. My problem is about 2 weeks after I got it, I started to notice an exhaust leak or vacuum leak or both at higher RPMs, like above 3 or 4k it starts. The exhaust has a nice deep rumble in normal driving but when the leak noises start that is all you hear, the exhaust note disappears completely. I have tightened the clamps on the cbe and still does it. Not sure what to look for.
View 3 RepliesGolf IV R32 :: Burst Vacuum Pipe And CEL After Rapid Deceleration?
The other day I decelerated rapidly. I didn't slam on the brakes, but I went from maybe 45mph to 0 in maybe 40 feet or so. When the car stopped, the CEL came on. No apparent issues at the time so I drove it the last few miles home. I checked under the hood with the engine running and heard a whistling noise which I tracked to the plastic pipe connecting the intake manifold to the brake booster. I didn't take a picture of it, but it is the one that has a silver heat wrap on part of it where it passes close to the throttle body. I grabbed a random pic online that kinda shows it.
R32 bay pic by isaacpettit, on Flickr
I believe this pipe feeds air from the intake manifold to charge the brake booster? If this was the case, I thought possible by hitting the brakes harder than usual the back pressure at the check valve was enough to burst the plastic pipe, which may have been heated, stressed already? Then the vacuum leak caused the CEL?
What is the actual purpose of that pipe. The car is well maintained with recent service and just over 30K miles.
Golf IV R32 :: Vacuum Leak On The Driver Side Seal
I have a vacuum leak on the driver side seal on the changeover rod in the intake manifold. It was replaced recently at the dealer and now has another hole in it. I was told this is caused by oil in the lines and my pcv valve is bad.
View 1 RepliesGolf IV / Jetta IV :: 2004 1.8T GLI - No Vacuum At Boost Gauge
Bought a 1.8t 04 gli. Was boosting 15 pounds so i did a boost leak test. Found pcv up hose from valve to y pipe at valve cover was almost blown in half, so i replace all of that stuff with oem.
Boost leak test again, found where boost gauge is hooked up to, turbo outlet to n75, the hose was leaking, i fixed that.
Boost leak test yet again, n75 was not clamped down, so clamped that.
Boost leak test one last time, held 10 psi before blowing the cap out of the intake. Which is pretty dangerous, my cap is made out of a spray can cut in half. Sounds like a canon. Anyways i heard zero leaks.
So now I am boosting 18psi and holding perfectly fine. Why I am showing ZERO vacuum on my boost gauge??
Golf/GTI VI :: Random Engine Misfires All Day / Vacuum Leak
Car: 2011 VW GTI MkVI
Mileage: 79k
Configuration: Stock
Warranty/Coverage: None
So I started my car last Monday and the check engine light was on. Didn't think much of it because the car ran fine and there were no immediate symptoms. I was busy with work this week, but noticed some changes in the car's performance over time so I waited till Thursday to have it scanned at AutoZone, which threw the following codes:
P 300 Definition: Random Engine Misfire
Explanation: Lean air/fuel ratio
Probable Cause: Ignition system misfire condition, Fuel injector fault, Engine mechanical condition
P 302 Definition: Cylinder 2 Misfire
Explanation: Vacuum leak on engine
Probable Cause: Ignition system misfire condition, Fuel injector fault, Engine mechanical condition
P 303 Definition: Cylinder 3 Misfire
Explanation: Vacuum leak on engine
Probable Cause: Ignition system misfire condition, Fuel injector fault, Engine mechanical condition
Prior to making any purchases I noticed that I started losing some pickup, primarily in lower gears between 2-3k RPM's. Praying that it was somehow just the coils/plugs I bought the R8 pack for both and replaced them this evening. Engine starts up and continues to misfire. I have not had a chance to have it scanned but it would appear it isn't the plugs or coils.
When the plugs were removed, there was an 'oily' substance on the threads, which also seemed like it could have been burnt off fuel or oil pushed up from the cylinder. Also 2 of the plugs seemed looser than the others and didn't feel properly sealed. New R8 install included proper plugs for STOCK application, as I do not run any tuning, and i installed with the appropriate plug grease added lightly to the threads.
I took the car for a spin with the R8 coils/plugs installed to compare it to how the car was doing prior the install. Car misfires and seems fine (relatively) at idle and revving to 2-3k rpm yields NO change. It is almost unable to accelerate up a hill, or go past 30 MPH without the car shaking and any gear higher than 3rd seems not drivable. I feel these are my potential diagnoses before i bring it somewhere and have it looked at.
In Order of Most Likely:
1) Fuel Injectors
2) Air Intake
3) High Pressure Fuel Pump
4) Electronic Leads for the Coils
5) Battery Needs Changed
6) Chain Tensioner Failure
7) Coils and Sparks are all Bad, and I am an idiot
I would prefer to do this work myself and can afford the parts. I just didn't want to be fooling around all month without a mode of transportation to get to and from work.
Golf IV / Jetta IV :: Vacuum Leak From Brake Booster?
I need replacement vacuum hose part for my GTI 337. The piece that is disconnected is the hose from the break booster to the intake manifold. It appears to be at a one way valve. I found a picture from a different DIY, that I have circled in green. The red arrow points to the place where it separated. I am not sure if this is a matter of me using a new clamp or buying a new piece of hose from advanced auto parts. The vacuum sets on ECS Tuning and it doesn't appear to be the correct set.
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Golf IV / Jetta IV :: 2001 1.8t Not Getting Full Boost / Vacuum Leak?
Ever since I got my car about 5/6 months ago I noticed it's not getting full boost. when I first got it the stock boost was getting about 5-7 I don't know if that's normal I've read they normally get more. eventually I got my car tuned and it's supposed to peak at 22 psi but it only got to about 13-14 psi. slowly it's been getting worse and my car is getting 2 psi. I've had lots of people tell me it's a vacuum leak. also the bov makes a flutter noise if that has anything to do with it. my intake doesn't make a sucking in noise like most do. The car has been randomly backfiring usually between gears. I just ordered a turbo inlet pipe a breather hose kit and a boost hose kit.
View 4 RepliesGolf IV / Jetta IV :: Fixing Code P1136 - Vacuum Leak?
As title states, I scanned my gti and got P0420 (nothing new here) and P1136. I did some searching and looks like vacuum leak can cause this, however I also read that it'll affect my idle. I replaced MAF 2 years ago with a brand new OEM one, my idle is NOT rough, at all.
View 1 RepliesGolf/GTI VI :: Whistling Sound / High Pitched Vacuum Leak?
Having problem on mrk 6, sounds almost like a high pitched vacuum leak but I can't find it.
View 11 RepliesGolf IV R32 :: Where The 2 Vacuum Lines On Rear Diff / Haldex Unit Go
Top and bottom left. Where the 2 vac lines on the rear diff/haldex unit goes?
View 1 RepliesGolf IV / Jetta IV :: Vacuum Pump Rivets Causing Noise At Startup
I have a raspy exhaust leak sounding noise when I start my 2003 GTi 1.8t that cuts off just a few minutes after I start the car and a fellow owner told me he thought it was a vacuum pump that has rivets that fail and allow the case to separate and cause this noise. Where this pump is located? This former coworker of mine said he replaced the rivets with long slender screws and nuts after removing the rivets but I lost contact with him and don't know where this pump is located.
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