Question about 1997 Buick Century
Engine runs rough and stutters when gas is applied, runs normal when idling. Problem shows up only when car was not used for more than 12 hours and is worse the longer it was not used. ''Check engine light'' was on one time with failure code for ''catalytic converter defective (possibly caused by engine misfire or vacuum leak or engine oil leak into exhaust valve)''. Cat converter was exchanged and failure code disappeared but engine runs still rough and stutters - so cat converter might break again soon. What is the reason?
Start by replacing the plugs and plug wires, this is esp true if car has over 100,000 miles on it. damp air can make the problem worse.
Posted on Aug 14, 2009
You might even try changing the fuel filter...when you let it idle it is getting enough gas to run and when you give it gas you might not be getting enough fuel through the filter to keep it running...
Posted on Oct 11, 2011
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Posted on Jan 02, 2017
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