Chevy S-10
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GMC Sonoma

How do you replace a heater core in a 2000 GMC Jimmy?


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2011-09-12 20:44:21
2011-09-12 20:44:21
2000 GMC Jimmy heater core replacementin order to replace a heater core in a 2000 gmc jimmy the coolant must be completely drained and the entire dash including radio, vents and panel covers must be removed. four screws hold the top portion(closest to the windshield) in place. they can be found under the windshield defrost vent. after the entire dash is removed a safety harness under the steering column must be removed and the steering column must be dropped to the driver seat. the heater core housing(black plastic) is located right center of the dash and is a two part housing one peice on top of the other. the housing is attached to the fire wall and must detached before replacement can continue. after detaching hte housing from the fire wall separate the housing by unscrewing the six screws that hold it together. the heater core is now exposed. disconnect the heater core from the two hoses and discard. installation is the uninstallation process in reverse.

it is a very long and drawn out process that is not accomplished in just an hour or two . make sure you have most of the day or several afternoons to finish . i started this and it took me 2 afternoons to take apart and put back together

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A "heater" or a "heater core"?

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