Question about 1997 Pontiac Sunfire

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Was driving down son's dirt road driveway returning home at low speed in 2nd gear in my 1997 sunfire when it suddenly started running rough with no power. it will start right up and idle is rough but acceleration is rougher and the car bucks and the engine runs boggy. all sparkplug wires spark to the plug. there was no snap, crackle, or pop when it occurred, just rough and loss of power, car will drive in a limping wounded manner. changed fuel filter with new clutch about 3000 mi ago. checked fuel line integrity. no loss or cross contamination of fluids. car had been running perfectly prior to the occurrence

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Sure sounds like a typical case of dirty/contaminated fuel....or a broken vacumn supply hose around the intake manifold area, in neutral let it idl;e and look and listen for a hissing sound, or a broken black rubber hose.
Also have the computer scanned for any possible codes.
Another thing to look at is the catalyctic converter, put a vac. gauge on the engine and see if the vac drops to almost zero...indicating a plugged cat.

Posted on Aug 07, 2010

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Posted on Jan 02, 2017

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