frustrated with vaccuum leak

Me[kk]A

New Member
Nov 16, 2009
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Toronto
have a metal on metal piercing type squeal coming from "sounds like" along the fuel rail/intake manifold area,

intake manifold, injector o-rings/grommets/throttle body gasket/iscv gasket have been replaced. the squeal sadly remains.

reacts to how cold it is as well. sometimes it is barely audible and if it randomly gets louder my idle will immediately be affected and bog down and behave erraticly.

tps sensor has been replaced, not sure where else to go with this.

also, the car wil not stay running if the idle adjustment screw(the one that is perpendicular facing towards the front of the car that should be fully closed) is halfway open. otherwise the idle does not stay high enough and steady enough for the car to run, it simply dies.

purchased the iscv diaphram as im thinking it may have failed closed?

just wondering if there is anything else im missing?

someone mentioned to me of a "dashpot" (<-unsure of spelling) along the fuel rail inbetween a set of injectors that could give me a vacuum leak? can anyone confirm this?

thanks, searched but couldnt find anything additional to this issue.
 

mkiiichip

New Member
Sep 10, 2007
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WI
Me[kk]A;1537608 said:
also, the car wil not stay running if the idle adjustment screw(the one that is perpendicular facing towards the front of the car that should be fully closed) is halfway open. otherwise the idle does not stay high enough and steady enough for the car to run, it simply dies.

your car does not have an idle adjustment screw. Whatever you are turning, your not supposed too.

what faces the front of the car that should be closed? pics?
 

Me[kk]A

New Member
Nov 16, 2009
44
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0
Toronto
ok guys, just came back from a drive today.. codes are as follows: 24,51,42

seems my new tps is still out of calibration.

as for 24, 42.. any tips on where to find the culprits?
 

supraguy@aol

Well-Known Member
Dec 30, 2005
4,242
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Atlanta
As for the squeal, I would guess the throttle body gasket. It is directional, and not symmetrical. Unbolt the TB ans check the gasket position.
 

Me[kk]A

New Member
Nov 16, 2009
44
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0
Toronto
that was already replaced, i'm going to redo all of the vacuum lines soon. Also, recalibrate the TPS again as it is still seems out of spec.