Having problems with your 2003 Chevrolet Silverado 1500 ?
2003 chevy silverado codes
\015 Also have a 2003 silverado 4x4 4.9l "v" engine. I currently have 2 codes 171 bank 1 runs too lean & 174 bank 2 runs too lean. my tech says it's the intake manifold? does this make sense?\015
Most likely cause is the intake manifold gasket
Repair Help & Product Troubleshooting for 2003 Chevrolet Silverado 1500
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