Outside temperature can affect almost anything electronic or mechanical. Check the gas cap first then move on to the Evap system.
The evap system diagnostic is only enabled at ambient temperatures of 40F or above. If a component went bad over the winter, it could just now be showing up due to warmer weather.
Can outside temperature affect any component of the evap system to set off check engine light on cold start or anytime
2004 Pontiac Grand Prix GT1
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Maintenance & Repair
Car will not start says starting disabled due to theft system
2004 Pontiac Grand Prix
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Maintenance & Repair
I have to put winter tires on my Grand Prix but without the original wheels that do not include tire monitoring system What will happen and can I find a way to fix it by myself?
2007 Pontiac Grand Prix
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Maintenance & Repair
My 2004 Grand Prix is giving me “charging system failure” this has happened before but never lasted more than the one warning, but now it is doing it again and keeps displaying message with the di...
2004 Pontiac Grand Prix GTP
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Maintenance & Repair
How do I disable the anti theft security system
2006 Pontiac Grand Prix GT
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Maintenance & Repair
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