2005 GMC Yukon XL Denali Q&A
2005 GMC Yukon XL Denali Question: Changing Spark Plugs
The metal collar on the spark plug boots on your 2005 GMC Yukon comes off with the spark plug wire. It is no simple task to get the plug wires of after 100k of driving. The best option is to try twisting the boot to break the seal between the plug wire and the spark plug. It is my recommendation that the spark plug wires be changed along with the plugs at 100k miles. It is to easy to unknowingly damage a spark plug wire when attempting to remove it after 100k miles of driving. - Oakman
when i step on gas pedal a lilttle bit then let off the lights go dim an idle goes down for a few seconds which cause my truck to stall when waiting at stop light or backing up I changed spark plug...