whats wrong with my car?
05-12-2007, 02:58 PM
#1
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whats wrong with my car? ya ive never heard or seen anything like this....when the car is cold its making a high pitch squeal when you rev it up...then once it warms up it starts runnin like **** and will only rev up to 3000 rpm's no more, but the squealing goes away, not missing or backfiring or anything just running like ****....its really hard to describe what its doing since ive never ran into something like this.
o by the way i drive a 94, z28 a4 bone stock.
o by the way i drive a 94, z28 a4 bone stock.
05-12-2007, 03:30 PM
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Originally Posted by Formula350
My bet is on a bad alternator. Does it start hard? Voltage low?
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05-12-2007, 06:26 PM
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Map? bad O2's??? i dunno...mine did a similar thing when the 02 extenstions got burnt through and became one big cluster F**k on the computer when 2 of the wires melted together...
05-16-2007, 10:53 AM
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ok...replaced the alternator..didnt fix it. unhooked to Maf to try to get it to go into limp mode and see if that would make it run right and it just made it worse..but i think i tracked down that horrid squealing, and it sounds like its coming from the vaccuum stuff on the back of the intake. what is that back there????
05-16-2007, 01:34 PM
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guess i could try knocking the **** out of the cats.
anyone else have any other ideas????
what is that vaccuum stuff on the back of the intake? thats whats squealing extremely loud, i think anyways.
hell i could prolly post a video of the car running, so you could enjoy this terrible sound.
anyone else have any other ideas????
what is that vaccuum stuff on the back of the intake? thats whats squealing extremely loud, i think anyways.
hell i could prolly post a video of the car running, so you could enjoy this terrible sound.
05-16-2007, 01:42 PM
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Originally Posted by snaketamer
guess i could try knocking the **** out of the cats.
anyone else have any other ideas????
what is that vaccuum stuff on the back of the intake? thats whats squealing extremely loud, i think anyways.
hell i could prolly post a video of the car running, so you could enjoy this terrible sound.
anyone else have any other ideas????
what is that vaccuum stuff on the back of the intake? thats whats squealing extremely loud, i think anyways.
hell i could prolly post a video of the car running, so you could enjoy this terrible sound.
05-16-2007, 02:00 PM
#15
The only thing on the back of the Engine that is goin to the Intake is the EGR crap..if you hear a whistle then the EGR Valve might be busted, or there is a leak back there somewhere.
As far as the O2's go.. when those 2 wires melted together, could it possibly have shorted something out in the Computer?
As far as the O2's go.. when those 2 wires melted together, could it possibly have shorted something out in the Computer?
05-16-2007, 07:17 PM
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Originally Posted by the_merv
The only thing on the back of the Engine that is goin to the Intake is the EGR crap..if you hear a whistle then the EGR Valve might be busted, or there is a leak back there somewhere.
As far as the O2's go.. when those 2 wires melted together, could it possibly have shorted something out in the Computer?
As far as the O2's go.. when those 2 wires melted together, could it possibly have shorted something out in the Computer?
05-16-2007, 09:26 PM
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the squeal is most likely the accessory belt
Electrical or fuel is the cause of the running conditions you decribed
Change the Fuel Filter for a start,then check/measure your opti and Coil
Electrical or fuel is the cause of the running conditions you decribed
Change the Fuel Filter for a start,then check/measure your opti and Coil