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Newbie needs help please. Possible heater core issue?
I have a new to me '07 GMC Seirra 2500 with the LMM. It has 170k on the odometer. The other day I was cruising around and turned on the defrost to clear up the windshield a little. The windshield fogged up and the air coming out of the vents smelled like coolant. I got it home and checked for...- slmdblazer
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- Forum: LMM