Close
Car Questions
RepairPal is your advocate for car care advice and guidance

Missing

(1997 Chevrolet 1500 Pickup)
in Coram, NY on October 31, 2010
eng idles fine under load it breaks up -missies changed fuel filter recenly mechanic put new fuel pump because truck would not start
Displaying 1 answers & 0 comments
Popular Answer
on October 31, 2010
You could have ignition system troubles or fuel system problems. You need to get the ignition system checked (sparkplugs, wires, cap and rotor), including spark strength under load. You also need to check the fuel pressure when the engine is cruising and under load, which can be done by safely connecting a mechanical fuel pressure gauge to the test port on the injection system and go for a drive. Use adequate cautions for fuel pressure testing while driving.
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
Runs and idles fine and the service engine soon light never comes on when this happens. The vibration is coming from ...
Didn't find what you were looking for?