I have no rear heat in my 2005 Suburban. The front heat works fine, and the electronics and blower all work for the rear, it just never gets warm. Is there something I should check first, like a relay, or is this likely a rear core issue? This happen to anyone else? Any help is appreciated.
Dave
This problem happens all the time I am told. I have a 03 and it also happend to me. Its a little electronic motor in the rear passenger wheelwell. It cost about 50bucks. Its called an actuator motor. If you don’t want to replace you can take the bad unit out and spin the gears to allow it to get heat. Just a heads up there are 2 motors in the wheelwell. On is for temp and on is for floor or roof vents. I cannot remember which on is which! Hopefully someone else will chim in.
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