Mechanics

CHEVY CHECK 4 WHEEL DRIVE LIGHT COMES ON

2004 Chevrolet Avalanche

Engine Mechanical problem
2004 Chevy Avalanche V8 Four Wheel Drive Automatic 45000 miles

what needs to be done. Can I do it myself
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Penlac
February 18, 2010.



Is the 4wd working when you switch it from 2 to 4wd?