CAR RUNS REALLY ROUGH/ SKIPS MISSES/WANT SMOOTH OUT AT ALL
WHAT CAN I DO NOW? on 1990 Cadillac DeVille

HAVE CHANGED WIRES,INJECTORS,DISTRIBUTOR COIL.CAP,PLUGS,MODULE,
TPS SENSOR,AIR CHARGE SENSOR

Asked by for the 1990 Cadillac DeVille
stop with all the parts replacing and go back to basics.

you need to do a compression check to verify the motors ability to work well. you need to do a vacuum test and test for vacuum leaks as well. you need to find the reason before replacing parts.

Roy
1 answer