Rough idle, loss of power and occasional stalling
10

Asked by Jimfly Oct 16, 2018 at 02:10 PM about the 1989 Chevrolet C/K 1500 Silverado 4WD

Question type: Maintenance & Repair

1989 chevy 350 struggling while idling. When
driving seems fine but definitely have a loss of
power. Replaced fuel pump, fuel filter, egr, pcv and
cleaned throttle body. Ive seen on here a possible
culprit could be fuel pressure regulator diaphragm?
Also could be vacuum leak? Not sure what else to
do or look for?

4 Answers
10

Jimfly answered 6 years ago

Throttle body was cleaned and Egr and pcv have been replaced within passed week and have drove less than 50 miles with those. Fuel pump has probably 100-150 miles, fuel filter was probably 5 months before all of this. Could egr clog that quickly? Could fuel filter be gunked up too having been that long before replacing everything else?

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