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#1
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2003 silverado code po446
I keep getting code po446 on my 2003 Silverado. It has 97,000 miles with a 4.8 2wheel drive. I have read that the evap vent valve is the problem. I do drive dusty roads often. Please help.
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#2
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Re: 2003 silverado code po446
Quote:
did u replace the valve?, check the evap hoses for any kind of cracks or broken hoses. try starting there. |
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#3
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Re: 2003 silverado code po446
Not yet. I took the valve loose and the foam filter in it was full of dust. I cleaned it but still am getting the po446 code. I want to get as much info. as I can before I purchase the parts.
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#4
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Re: 2003 silverado code po446
A code P0446 means a restricted or blocked EVAP canister vent path caused by:
A malfunctioning EVAP vent solenoid (stuck closed) A plugged kinked or pinched vent hose A shorted EVAP vent solenoid driver circuit A plugged evaporative canister. |
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