Mechanics

OIL LEAKING

2002 GMC Yukon

Engine Mechanical problem
2002 GMC Yukon V8 Four Wheel Drive Automatic 126000 miles

How can you tell if it is leaking from the rear seal or if its a valve cover gasket leaking? What is the typical cost of replacing rear seal? If its the valve gasket how hard is it to change if I do it myself? Thank you

- Doug
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Dchaput
April 16, 2010.




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