I checked all the fuse and all were good. The heater gets warm while idling, but cools down while driving, could it be the thermostat? Thank you 65 yr old granny.
2007-02-15 14:54:47 · 4 answers · asked by Bennie B- female 1 in Cars & Transportation ➔ Maintenance & Repairs
Sounds like the thermostat is stuck open.
So yes it's likely to be the thermostat.
When you say the fan does not blow I'm assuming your talking the cooling fans by the radiator and not the fan that is related to climate control.
It's possible that your temperature sensor is not reading the engine to be hot because if the thermostat is stuck open, coolant is constantly flowing and never getting hot enough to turn on the cooling fans.
I'd definitely go after the thermostat first as a most likely reason for the fans not triggering on.
What does your temperature sensor read inside the car? Does the temperature get high?
Also try this. If you turn on your Air Conditioner, do the cooling fans turn on? If they turn on when you turn on the A/C the only other reasons for the fans not to blow are bad temperature sensor or a bad fan relay.
2007-02-15 15:01:36 · answer #1 · answered by hsueh010 7 · 0⤊ 0⤋
i own a repair shop,and the thermostat wont make the fan not blow on it,if the fuse is good in it the heater motor resistor may be out on it they mount on the outer part of the heater box,and will cause the fan not to work at all ,but the thermostat will make it not heat up,you need to check both of these good luck with it i hope this help,s.
2007-02-15 23:02:40 · answer #2 · answered by dodge man 7 · 0⤊ 0⤋
hsueh010 may very well be correct. If your thermostat was removed, or if it's stuck in the open postion (which is rare, usually when they fail they get stuck in the closed position) it would do precisely what yours is doing, nice warm heater when idling, but once air begins to cool the radiator while driving, no more hot water for the heater.
2007-02-15 23:05:03 · answer #3 · answered by Anonymous · 0⤊ 0⤋
I'm not being rude but you question has two different symptoms.
When you say doe's not blow, I take it the blower motor doe's not run.
But the other information you give points to a clogged heater core or the heat shut off valve in the heater feed line.
2007-02-15 23:06:35 · answer #4 · answered by Anonymous · 0⤊ 0⤋