stalling out around 4500
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5th Gear
Joined: Nov 2008
Posts: 5
Likes: 0
From: Brooklet GA
stalling out around 4500
I have a stock 92 LT1 vette that has only 53000 miles and has been babied but when you accelerate quick and reach about 4500 rpms it stalls out right before shifting like the fuel has been cut off or the spark restricted. I have been told this year did not have a rev limiter. I have placed in park and I do not get the stalling problem when reving. I have had the fuel filter changed with no luck. I had it in the dealership for them to look at. They tried to tell me that the was an intake leak that was allowing oil down into the distributor. They wanted to replace the distributor and intake gasket. After refusing and returning home for futher investigation there was no such problem - a little dirty but no sign of oil. Any ideas of what is causing this?
Racer
Joined: Dec 2007
Posts: 354
Likes: 4
From: Grand Ledge Michigan
It sure sounds like a fuel pump to me. Runs fine at idle, even low RPM's, then hit 4500 and dropps off? If it were electrical, it would do it other times than high rev if it ran at all. My guess is soon it will progressively do it at lower revs. Assuming it's a 16 year old fuel pump, it seems obvious. Get a fuel pressure guage on it.
Tech Contributor
Joined: Oct 1999
Posts: 41,044
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From: Charlotte, NC (formerly Endicott, NY)
Bill
