Having problems with your 2003 Chevrolet Silverado 1500 ?

2003 Chevy Silverado 1500 Error Codes

\015 Errors PO135, PO442, PO449\015 Posted / edited by AnonymousUser on : 23-04-2018

Answers :

P0135 is a bad 02 sensor
\015\012P0442 is a evap problem
\015\012P0449 is a vent solenoid
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\015\012i would check the vent solenoid first its a 4ws fuse under the hood in the fuse box make sure you have power to it you should have power at all times the ground comes from the pcm i think if you fix this everything else will work they are all computer controled
P0135- 02 sensor
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\015\012p0442- evaporative emissions control system leak detected (small leak)
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\015\012p0449- evaporative emissions control system vent valve/solenoid circuit malfunction
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