94 s4 boost leak
08-11-2006, 07:33 PM
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94 s4 boost leak
Hey guys long time lurker first tme poster, long story short my dads s4 isnt boosting like it should. I cant hear any audible noses when i boost it and the car drives fine other wise, i checked the shaft play swaped ecus with my s4 check all boost hoses as well as the vacum lines i could see, any idea what the problem might be
08-11-2006, 08:34 PM
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if no boost leak I would check the WGFV (it was the cause of my low boost issue)
I would invest in a boost guage first though, it's hard to diagnose boost issues without one.
08-12-2006, 06:27 AM
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You don't have to pressure test, but you have to remove the hoses and inpect them
Pull off the hoses starting with the cross-over to IC hose and bend them and poke your finger around from the inside out and you will find if there are any holes or areas that are close to becoming a hole.
My MM hose had a hole in it that was impossible to see unless you stuck your finger inside and pushed out. Then you could almost get your whole finger through it. I also found other weak areas that would have failed soon.
My MM hose had a hole in it that was impossible to see unless you stuck your finger inside and pushed out. Then you could almost get your whole finger through it. I also found other weak areas that would have failed soon.
08-12-2006, 06:27 AM
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Re: I always offer to look at your cars...
lol hey paul i wasgonna try and solve it without acutally bothering you. I sent brian an email about helping mer install my shocks obviously your invited it will be sometime after the 21st. I did check the moisture trap and it seemed good. As for checking the boost leak i swapped all three of the hoses off of my car which has full boost.
08-12-2006, 06:29 AM
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Re: if no boost leak I would check the WGFV (it was the cause of my low boost issue)
forgive my stupidity but whats the wgfv
update i pulled my head out of my *** spelt it out and swapped the parts turns out that was zi problem, anyone have any idea what the part number is as i didint see one anywhere on there. Thanks guys
update i pulled my head out of my *** spelt it out and swapped the parts turns out that was zi problem, anyone have any idea what the part number is as i didint see one anywhere on there. Thanks guys
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