Question about 1991 Chevrolet Caprice
Looks like you have some water in gas. Check to see if you have a drain on your gas tank bottom. If so, since water settles to bottom, drain some gas out and hopefully you will be getting most of the water out. Otherwise you will simply have to "run it out" or have the station that sold you the gas take care of it.
Posted on Apr 04, 2017
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Posted on Jan 02, 2017
I had the same truck and it had lean codes.
The intake gaskets go bad causing too much air to enter the chambers. ITs the same gasket for the 4.8 and 5.3 litre motors.
upon tear down i found the fuel pressure regulator had fuel in it indicating the diaphram went bad.
Fixed and everythings all right.
BUT check your codes first I don't want to you to do a tear down with out knowing what the computer is doing first. Auto zone does free diagnostics and tell you what the codes are. Let me know I can guide you from there.
Posted on Feb 18, 2009
Change the fuel filter again and if you have fuel injectors, you need to get them sleaned....I believe some of those oil one stop service places will do it. If you have a carb, you need to blow it out....but change that filter....maybe even a few more times if you had that stuff come out the first time.
Posted on Apr 02, 2009
SOURCE: hesitates on acceleration
Does the car always hesitate during acceleration? If it ALWAYS struggles when it starts or ALWAYS hesitates on acceleration then I would say the issue is fuel delivery. If the problems are more intermittent and come-and-go then it could be an electrical issue.
I would start by changing the fuel filter. Changing plugs, wires, cap, and rotor are all good things to do as your budget will allow. I doubt you will have to change your injectors.
If you end up replacing any rubber fuel line, be sure to use the high-pressure stuff made for use on fuel injected cars.
I hope this helps! -Nick
Posted on Apr 10, 2009
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