No heat to heater core

Asked by JAN Jan 20, 2015 at 01:07 PM about the 1999 Jeep Grand Cherokee Limited 4WD

Question type: Maintenance & Repair

1999 Jeep Grand Cherokee climate control V8.
I have the blend door compartment open.
Heater core does not get warm. Flushed out the core, refilled etc. No heat.
Is there something in between the water pump and the core that would keep it from heating?
Thank

1 Answer
45,175

jamnblues answered 9 years ago

yes- there is a heater valve that goes on and off when you command it to (with a lever or switch)- this is what gives you heat by putting hot coolant into the core- sounds like it is inop-

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