my a/c is working fine when i am putting in the heater it is not working
Dec 9, 2007 at 11:44 AM
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MHPAUTOS
CAR REPAIR CONTRIBUTOR
31,937 POSTS
Hi there,
with engine warm up, check the temp of both heater hoses with the temp on high. If not hot to touch, you may have a blocked heater core or a faulty heater tap. If both hot the venting system flaps could be stuck closed.
mark (mhpautos)
Dec 9, 2007 at 4:10 PM
STRAILER
CAR REPAIR CONTRIBUTOR
54,354 POSTS
The #1 reason a heater will not work is low on coolant, check out this video which should help.
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