Q: The engine will not warm up to normal operating temperature. I've replaced the thermostat twice, replaced the waterpump and bled

asked by on

You could drive this grand caravan a hundred miles and it will not get up to normal operating temp. Replaced thermostat twice, replaced the waterpump and bled the air out of the cooling system. If you let it idle in the driveway it gets up to 1/8 normal operating temp. As soon as you start to drive it cools off very quickly to the point where it barely registers on the temp gauge. The cabin heat temp is way below normal too. The coolant hoses never get as warm as they should. I can hold onto them after driving the vehicle because they are not very hot at all.

My car has 68000 miles.
My car has an automatic transmission.

The cooling system will not get up to operating temperature if the thermostat is not seated correctly, radiator cap not holding enough pressure or the cooling fans are on all the time wen the key is on. If you already replaced the thermostat then you should check to make sure the fans are not on all the time when the engine is running even when a/c system is turned off. If fans stay on the the relay may be stuck on or the coolant fan switch is shorted. Have a mechanic like one from YourMechanic check fan control system and check the radiator cap to make sure it is holding specified pressures.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. The engine will not warm up to normal operating temperature. I've replaced the thermostat twice, replaced the waterpump and bled

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Rear tailgate doesn't lock properly and opens while driving

Hello. It sounds like the first step is to have the rear tailgate ajar switch replaced. Then, have the rear tailgate latch adjusted so the door will close properly. It is also possible that the rear tailgate support shocks aren’t...

Q: Vehicle shakes during acceleration

Among the remaining possibilities are defective motor mounts, struts, and engine operating condition (the engine needs to be looked at with a scope under load and a compression test might be helpful, too). If there is no problem with the...

Q: The housing for the starter outside bolt hole is cracked and can't get the bolts to hold the starter in its rightful place 2008 Cadillac Escalade

Hi - while it may be possible to remove the starter and repair the housing (weld and re-drill the hole), the most practical approach is to simply replace the starter. It could well cost just as much to repair it...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...