What would cause this??????
Thread Starter
Team Owner
Joined: Nov 1999
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From: Former NCM Drag Racing coordinator, National director Corvette Challenge Spring Hill, Tennessee: Whiting, New Jersey
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What would cause this??????
After driving about 20 min. the car looses power and startes popping and farting, tach(autometer) flutters at 1000 and the car will soon stall out. It's done this twice but will clear itself out and run fine.
Anyone ever had this problem???
[Modified by mackeyred96, 3:03 PM 7/4/2004]
Anyone ever had this problem???
[Modified by mackeyred96, 3:03 PM 7/4/2004]
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Re: What would cause this?????? (mackeyred96)
Have you checked the fuel pressure when this happens? I would do that first to isolate the fuel system before going into PCM, Ignition, or aftermarket ignition box problems.
Drifting
Joined: Jun 2002
Posts: 1,305
Likes: 11
From: Savannah Ga.
Re: What would cause this?????? (tjwong)
simular systoms twice on my 94lt1.......right 02 sensor replace three times turn out to be wire in harness............second time begining of opti trouble....low res
hope that helps
[Modified by redcorvettedave, 9:20 PM 7/4/2004]
hope that helps
[Modified by redcorvettedave, 9:20 PM 7/4/2004]
Thread Starter
Team Owner
Joined: Nov 1999
Posts: 32,782
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From: Former NCM Drag Racing coordinator, National director Corvette Challenge Spring Hill, Tennessee: Whiting, New Jersey
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Re: What would cause this?????? (mackeyred96)
Thanks 
Pro
Joined: Jun 2003
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From: OKC OK
Re: What would cause this?????? (mackeyred96)
It has always been my experience that when the tach needle fluctuates at idle, even though the engine seems to run steady, you're looking at an ignition problem.
The wives tale is that an electronic part either works or it doesn't...there's no in between.
That just isn't the actual fact. They do act up as they are dying. The fluctuating needle is the telltale. As that type of ignition symptom rarely throws a code you'll probably end up shotgunning some parts. Where you start is up to you. I hope you find it quickly!
The wives tale is that an electronic part either works or it doesn't...there's no in between.
That just isn't the actual fact. They do act up as they are dying. The fluctuating needle is the telltale. As that type of ignition symptom rarely throws a code you'll probably end up shotgunning some parts. Where you start is up to you. I hope you find it quickly!
Team Owner
Joined: Aug 2000
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From: San Pedro CA
Re: What would cause this?????? (mackeyred96)
I would start with fuel. It sounds like you are running out of gas.
Any codes?
My 92 acted just like this when the fuel pump took a crap.
If it's the opti, I would expect codes.
Any codes?
My 92 acted just like this when the fuel pump took a crap.
If it's the opti, I would expect codes.
Drifting
Joined: Jun 2002
Posts: 1,305
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From: Savannah Ga.
Re: What would cause this?????? (bogus)
QUOTE----------------------------------------------------------
If it's the opti, I would expect codes
-------------------------------------------
I would ck other things also.......but I did not get any codes for a month....vette stalled twice in trafic .....when I TIED to accelerate....she said 
....month later code 36
If it's the opti, I would expect codes
-------------------------------------------
I would ck other things also.......but I did not get any codes for a month....vette stalled twice in trafic .....when I TIED to accelerate....she said ....month later code 36
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From: Kingman AZ
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Re: What would cause this?????? (mackeyred96)
On a previous 86 that I used to own we found out that the Cat was plugged. It had mid- 60K on it at the time.
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