Question about 2008 Chevrolet Silverado 1500 2WD
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Posted on Jan 02, 2017
P0135 is a bad 02 sensor
P0442 is a evap problem
P0449 is a vent solenoid
i 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
Posted on Mar 23, 2009
CODE PO449 -EVAP VENT SYSTEM PERFORMANCE CONDITION.POSSIBLE CAUSES. VENT SOLENOID CONTROL CIRCUIT IS OPEN OR SHORTED TO GROUND OR.VENT SOLENOID CONTROL CIRCUIT IS SHORTED TO SYSTEM POWER B+.OR VENT SOLENOID POWER CIRCUIT IS OPEN TEST THE ENG 1 FUSE.OR VENT SOLENOID IS DAMAGE OR HAS FAILED.OR PCM HAS FAILED.
Posted on Aug 19, 2009
The first code is for the secondary air injection system. It could be as simple as a fuse or broken wire. It could also be the air pump. The second is the purge solenoid control circuit. Again it could be a wire or the solenoid. The third is also a EVAP code related to the vent valve, and may also be the wiring or the valve. Did all these codes set at the same time? If so you may be looking at a PCM problem. It is really hard to venture a guess at the cost without lnowing more. I advise you to use a good shop that you trust. It will take some special equiptment to properly diagnose these issues. Good Luck
Posted on Jun 24, 2009
You should get instructions on where to put the air filter when you purchase new ones. I think that it is under the dash on the passenger side. There should be a cover underneath the glove box with screws holding it in place. This thing takes two air filters so Chevy can milk more money out of you.
Posted on Oct 24, 2009
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