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Problem with front climate control
Do the climate control fuse pull reset (search the forum) and verify the actuator located above the passenger side of the transmission hump cycles. If you don't see it move during the reset, it could be the heat blend actuator. (Remove the screws holding bottom of the air box cover to expose the... -
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Heated seats flicker, and AC works only on the driver side
Your heating element(s) in your seats may have gone bad as well. The click, flashing indicator and shut off are very indicative of that. Only way to check it that I have found (keep in mind I have not dove too deep into troubleshooting them in my own Yukon yet) is to replace the heating... -
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2000 Yukon slt really weird Hvac issues
You may have multiple issues. First, what thermostat did you put in it (temperature setting)? Do you have a buzzing noise from the "speaker grill" above the driver seat? That is one of your cab temperature sensor (I believe there is a second one in the rear in the headliner). If it is buzzing... -
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No Heat (front or rear)
Sorry about being so late checking back in. It looks like I am dealing with multiple issues at once, but I did get heat going. First, did another forward and reverse flush of the heater cores at the firewall. I got some more debris out, leading me to believe that the heater core(s) are beginning... -
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No Heat (front or rear)
(Sorry if this is all over the place. It's been very confusing as to why this won't work.) Recently picked up a 2003 Yukon XL SLT with the fancy digital dual zone auto control head. Back story: While initially going through it, found that the water pump was leaking from the weep hole...
