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2005 Chevy Colorado Check Engine Light Code P0446
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asked
Oct 23, 2018
by
John west
Check engine light stay on
Vehicle:
Chevy 2005 Colorado
po446
check-engine-light-on
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Oct 24, 2018
by
Carguy1
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13.5k
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Hi there,
This code is for a blockage in the evap system. This can be caused by the vent control valve or the purge control solenoid. Both have to be tested to try and determine if either or which one has failed. Then, if both are good the vent line must be checked for blockage.
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