2002 GMC Yukon Repair Question
Topics covered: Spark, Engine, Fuel filter.
Mileage: 151,000 miles.
Mileage: 151,000 miles.
Asked on September 28, 2011
What would cause the engine to run rough when idling?
There are times when it sounds and acts like it is going to die. The RPM's drop off and then come back up to normal operating range. Sometimes, it doesn't run rough. I thought it might have been bad spark plugs, so they were changed out. Could it be a bad spark plug wire or dirty fuel injectors?
Thanks,
Allen
Thanks,
Allen
Asked by OffshoreDawgAnswer
Replied on September 28, 2011
Is the "check engine" light on? Are there any diagnostic trouble codes (DTCs)? If you haven't changed the spark plug wires in a while, it's not a bad idea to put a new set on. When was the last time the fuel filter was changed?
Replied on September 28, 2011
There aren't any check engine lights on. I will change the spark plug wires and the fuel filter and see what happens.
Thanks
Replied on September 29, 2011
Have you been able to resolve this issue OffshoreDawg?
Replied on September 29, 2011
Check for vacuum leaks.
Replied on September 30, 2011
I am actually at work - offshore. I will check it out when I go home next week.
Replied on September 30, 2011
Ok. Let us know.