Question about Chevrolet Silverado 2500
Po171 bank 1 fuel trim system lean,the problem with these is the intake manifold gasket it leaks vaccum. will make truck run bad, in the am may be even worse. replace the intake gasket that will solve your problem. ive done a few of them. hope this helps.
Posted on Jan 30, 2010
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Posted on Jan 02, 2017
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