Hello,
This could be a problem with your vehicle's cooling fan control module. This module does just what it's name implies, it controls your engine's cooling fan. It is has failed, then your engine's cooling fans will not come on when at idle sitting in traffic. I have included in the diagrams below a step by step procedure for removing and installing the cooling fan control module. Please go through it and let us know what you find out.
Thanks,
Alex
2CarPros
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Thursday, March 14th, 2019 AT 4:52 AM