I own a 1991 Caprice with a 5.0 engine the car starts quick and idols smooth even in sub 0 weather however, after the engine reaches full op. temp. and I start off from a dead stop or accelerate up hill the engine cuts in and out sharply.So far I have tried to fix the problem by replacing the T.P.S. sensor, the M.A.P. sensor, the distributor, the ignition module, the coil, the rotor, the cap, I have even replaced the main engine computer. I also replaced all wiring harnesses.also the fuel filter, and the fuel pump,and yet the problem persists! I cleaned the C.V.C. valve and checked and replaced all vacuum lines. This is driving me nuts and broke at the same time! There are no codes showing up on a scan. the cut off only seems to happen when the car is in closed loop. the car doesnt stall and runs fine at idle. The engine timing is set to factory specks the car only has 65,000 miles on is and uses no oil or overheats. any good ideas out there????????
2007-03-18
17:24:03
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13 answers
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Lots of money but no sense
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Chevrolet