Question about 1992 Cadillac Eldorado
This can be caused by several things. 1st check the coolant level. You would be surprised how many people don't have heat because the coolant level is low. The hot engine coolant won't circulate thru the heater core if the level is low, resulting in no or little heat.
2nd What does the engine temp gauge indicate? Is it in the low-normal range or showing that the car isn't warming up? If that's the case, replace your thermostat, as that would indicate the thermostat may be stuck open, not allowing the engine to reach operating temperature. 3rd. Problem w/ heat control on dash. If the control isn't working properly, you won't get heat. Some cars have a valve that opens @ the firewall in the heater hose line that will stick shut, so no flow of coolant to heater core, others (probably what u have) is a 'door' that opens and closes when heat switch is moved. This door may not be working due to vacuum control/or cable problem w/ operation of door.4th is a plugged up heater core, which is the last thing to check, because it's the most difficult and expensive heat problem to fix. Let me know what u find, hope it's one of the easy ones!
Posted on Dec 06, 2008
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Posted on Jan 02, 2017
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