Question about 2001 Pontiac Sunfire
The car will run fine sometime, then it will buck and a speed you are trying to maintain, 35, 45, 55 mph. If you give it gas no problem it take right off. But sometimes maintaing a speed it will buck un til you let off or increase the pedal. I changed the fuel filter and this helped for a good while but now its back again. Any answers or suggestions. Also replace air filter, plugs and distributor.
Sounds like the EGR valve is giving you some trouble. If it is happening during steady cruises, That is where I would start. Do you have a check engine light on?
Posted on Mar 12, 2009
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Posted on Jan 02, 2017
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