2008 GMC ENVOY
46,000 MILES
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NOVATECH66
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  • 1 POST
diagnostic code p0411 clear code light came back on what check valve is sticking and where it would be i have a 08 gmc envoy with 4.2l
Nov 2, 2012 at 11:43 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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