Question about 2001 GMC Yukon Denali
Posted by Anonymous on
Fuel pressure regulator will fix it.
Posted on Jan 25, 2011
Mine had the same exact problem, my idle speed would drop so low that my air conditioning would blow hot air.
I cleaned the throttle body and its perfect now. Idling at 600 rpm and cold air when stopped.
Posted on Aug 06, 2011
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Posted on Jan 02, 2017
The problem with the 01 Denali I'm envolved in fixing is too low of idle. My scanner is showing random misfire on six of eigth cylinders but goes to zero count when idle is raised to 800 rpm. Going to remove the throttle body this time and thoroughly clean it to see if I can get the correct idle back.
Posted on Jul 05, 2010
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