Dennis R Posted September 10, 2008 Share Posted September 10, 2008 I had $900+ work on the Air conditioner at a Toyota Dealer last summmer. In the winter the heater would not work, so I did not drive it. Any idea what to check first? Simple Checks. The radiator is sealed with a plug--no cap. Perhaps it is not completley filled up? Also, no luck in obtaining a service manual on line, even on E-Bay All replys will be appreciated. Thanks in advance. Dennis R. Quote Link to comment Share on other sites More sharing options...
mustang2v Posted September 12, 2008 Share Posted September 12, 2008 I would look at the hot watet valve on the firewall and make sure the cable is still attached. Then make sure it opens and closes when you turn heat on and off. If that is not it it is more than likely low on water Quote Link to comment Share on other sites More sharing options...
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