not enough heat out put from heater on 2000 Chevrolet 1500 LS truck

Asked by Ghibli_804 Jan 18, 2017 at 06:32 PM about the 1999 Chevrolet C/K 1500 LS Extended Cab RWD

Question type: Maintenance & Repair

Lack of heat on drivers side from interior heater

2 Answers
188,355

Paul answered 7 years ago

Possible clogged heater core, air in the system, clogged radiator, I would flush the system with a good radiator flush a few time, bleed all the air and see what happens

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34,745

lrodri911 answered 7 years ago

Check to make sure the thermostat is working and reaching operating temperature. If temperature is ok, check to make sure you're getting coolant flow through the heater core. If everything checks out good, check the climate control switch

Mark helpful

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