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In cold weather, you'll notice that the engine temperature gauge registers only slightly or not at all, particularly if you're driving at highway speeds. You'll also notice that the temperature of your passenger compartment heater isn't nearly as warm as usual.
Your car will show a temperature if you allow it to idle for several minutes. The heat flowing into the passenger compartment will be warm as usual.
If your thermostat is open, the engine will rarely warm to a level you're used to seeing on the temperature gauge.
What else can I help you with?
How do you know when you have bad thermostat?
If your engine takes a much longer time for the thermostat heat guage to reach its required level of operatiing temperature then the thermostat may be stuck in the open position which means that it will need to be replaced.
The antifreeze will not heat up in a Dodge ram 2003?
Thermostat is most likely stuck in the open position; replace the thermostat.
How do you know if your car thermostat is broken?
If the thermostat is broken in the closed position the engine would overheat rapidly. If it was broken in the open position the engine cooling system would not reach normal operating temperature and the heater would produce only warm air. Take the thermostat out and put it in a pan of water on the stove. When the water gets to around 200 deg F, the thermostat should open. If it doesn't it needs replaced. Observe carefully that you have not installed the thermostat upsidedown.
You have a 2003 Jeep Liberty and the heater will not get hot?
The thermostat is probably stuck in the open position.
Silverado heater blows cold air only?
possibly thermostat stuck in the open position?
Why does a car not give heat but is not overheating?
That is the most common symptom of thermostat stuck in open position.
Would a sticking thermostat cause you to lose all heat?
Yes, if stuck in the open position.
When coolant temp is low what needs to be done?
Replace the coolant thermostat. It is probably stuck in the open position.
Why does the heater on your 1999 Dodge Ram pu blow coolcold at idle then warm up when the RPM's increase?
Thermostat stuck in the open position. Replace the thermostat.
How do you know if the thermostat went out in a Chrysler lebaron?
If the thermostat is stuck open, the engine will never warm up to proper temperature.
1997 Audi A4 Stays cold after running?
Thermostat failed in open position or radiator fan permanently on
Why is there no heat in a 1998 Chrysler Sebring convertible?
Check the coolant level. Or, thermostat could be stuck in open position.
