What does this mean

Thomas Blackwell

Asked by May 12, 2016 at 03:57 AM about the 2006 Cadillac CTS 3.6L

Question type: Maintenance & Repair

I have 2 coil packs out and when I changed
my spark plugs they had oil all over them
what does this mean

2 Answers

Jason Zane

if oil on plugs there could be cracked plugs. i've put rubber hose piece in my socket to help keep the plug straight and avoid cracking the plug. also, are u torque-ing the plug at proper tightness? are valve cover seals ok?

Bob Beaman

The valve cover gasket needs to be replaced cause it is leaking oil into the sparkplug well. This is a common problem.

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