06 Uplander DTC P0449!! Please Help!! Need Some Advice!!
August 12th, 2013, 1:38 PM
#13
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hi, i have a 07 uplander had a code of p0449 so after reading a few other threads on this siter I changed the vent solenoid valve located on the top of the gas tank started the vehicle light was off. Then it came back on and now it comes back on as soon as I clear the code within 20 seconds. I spent $120 on the part form GM (i live in Canada) I have checked all the wiring as well and there is power to the solenoid? what else can it be I am getting the same code p0449 and p0449P?? thanks
THERES a sensor at a black house check and replace under the tank!!
October 29th, 2013, 5:39 AM
#14
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07 Uplander check engine light is on
I am a little irritated at the moment. I got gas yesterday morning around 515am and this morning around the same time my check engine light came on. so I tightened the gas cap thinking this might be the problem but the light is still on..........what do I do ??? should I wait a little while longer before calling the dealership ????
October 29th, 2013, 7:35 AM
#16
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I am a little irritated at the moment. I got gas yesterday morning around 515am and this morning around the same time my check engine light came on. so I tightened the gas cap thinking this might be the problem but the light is still on..........what do I do ??? should I wait a little while longer before calling the dealership ????
October 29th, 2013, 8:21 PM
#17
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Most auto parts stores will read the code for free - there are 2 separate codes: 1 for a small EVAP leak and one for large.
I agree with the others though...give it a little time as its likely your gas cap.
I agree with the others though...give it a little time as its likely your gas cap.
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