92 Yukon Running Rough

By chasliss
March 8, 2010 in 1999-2013 Silverado 1500 & Sierra 1500

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chasliss

Posted March 8, 2010

All,

I have a 92 Yukon 4x4 and at low speed (under 45) it runs rough. I've replaced the fuel filter, spark plugs and the air filter. I've put in fuel injector cleaner on the last tank. Still runs rough. Any suggestions? O2 sensor?

Thanks,

Charlie

dwhults

Posted March 8, 2010

Check vacuum lines.

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