Error Code P0446 2001 Tahoe
April 6th, 2009, 6:56 PM
#1
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Error Code P0446 2001 Tahoe
2001 Chevy 4X4 5.3L Tahoe with 200K miles
check engine light is on,autozone says code is P0446. This is what their ticket says:
The PCM has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system.
Definition:
EVAP (Evaporative Emission System) purge/vent solenoid circuit condition
Explanation:
The solenoids and system wiring are monitored for opens or shorts
Probable Causes
1- Purge or vent solenoids defective
2- Check connevtor and wiring
3- Fuel saturated vapor canister
4- Failed EVAP vent solenoid
If the Vent solenoid is defective, what effects would this cause to the motor? Could it cause the motor to miss at low RPM?
Any info and help is appreciated.
Thank you in advance for your help!
check engine light is on,autozone says code is P0446. This is what their ticket says:
The PCM has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system.
Definition:
EVAP (Evaporative Emission System) purge/vent solenoid circuit condition
Explanation:
The solenoids and system wiring are monitored for opens or shorts
Probable Causes
1- Purge or vent solenoids defective
2- Check connevtor and wiring
3- Fuel saturated vapor canister
4- Failed EVAP vent solenoid
If the Vent solenoid is defective, what effects would this cause to the motor? Could it cause the motor to miss at low RPM?
Any info and help is appreciated.
Thank you in advance for your help!
April 7th, 2009, 6:53 AM
#2
Administrator
Welcome to the forum
To the best of my knowledge the evap system witch is an emissions system should not affect drive ability, at least not in the sense of a miss or rough idle, the EGR which is also emissions could cause a rough idle.
With that many miles I would suspect fuel delivery / ignition
To the best of my knowledge the evap system witch is an emissions system should not affect drive ability, at least not in the sense of a miss or rough idle, the EGR which is also emissions could cause a rough idle.
With that many miles I would suspect fuel delivery / ignition
April 8th, 2009, 10:32 AM
#3
Administrator
Welcome to the Tahoe forum. Remember that DTCs just point to an area of a problem and usually require further troubleshooting to determine the underlying cause.
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