engine problems

[bigtketz165]

i have an 86 caprice classic with the 5.7 liter v8, and recently it has begun to give me a problem. at first when i start the car and drive for a few mins, it is fine, the when i hit the gas more than just a little, it sputters and stalls a lot. i have this problem on the highway, and goingup hills. I think it may be a clogged fuel filter, or even a bad fuel pump,please give me some feedback

big pete

[Autophysn]

fuel problem is possible but, not likely
check all vacuum lines, cracks on dist. cap and
rotor, or a loose carburetor base resulting in a
vacuum leak. I would be willing to bet all you
need is a major tune-up.

[bigtketz165]

only reason i think it is a fuel filter or pump is because it runs fine in low rpm, and doesnt misfire at all. only has problems during times of high fuel consumption(high rpms)

[akbar347]

i hear this is common on high miles wet manifold chevy v8's. i have been advised to clean my intake manifold to fix this problem, altho i haven't gotten to it.

[akbar347]

actually reading your post again, my problem is that it stalls at very low rpm, and runs fine at high rpm, so we probably have different problmes.

[buddhahaha]

Sounds like a bad fuel filter. You may also have a clogged catalytic converter.