Question about 2003 Chevrolet TrailBlazer
My wifes 2003 trailblazer is running badly i had my father in law hook up a scanner and got these codes P0172 P0306 PO340 im fairly mechanical have don brakes clutches and the like are these codes something i can fix or is it a dealer repair probably? also the check engine light is on currently and its running rough and dying thanks mark
Posted by Anonymous on
172 is caused by a rich fuel mixture on the right side. It may be caused by a fuel injector not closing fully. Dirt particles can do this. Adding Gum out may help. The other engine codes, 306 and 340 is for missfire which the cam sensor is at fault
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Posted on Jan 02, 2017
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