Q: Constantly overheating 2003 Dodge Durango

asked by on

Overheats in still traffic or idle, cannot find a coolant leak thermostat is good bc both hoses feel same temp and car reaches operating temp good. Replaced the aux water pump thats electric and helps send coolant to rear heater core bc it was leaking. Have to keep adding coolant, oil doesnt look mixed with coolant or vice versa. Fan clutch feels viscous still.

My car has 173 miles.
My car has an automatic transmission.

It seems like you have an air flow issue or air in the system. The fan clutch should spin with a small amount of resistance when the engine is cold. With the engine up to temperature, the fan clutch should be much tighter and the fan should be hard to spin by hand. If you do not notice a significant change of resistance, I would suspect the fan clutch to be bad.

Also, check to make sure that you have bled all of the air out of the system. Sometimes air will cause the water pump to work inefficiently at idle, but once you are moving, the increased flow overcomes the inefficiency of the pump. A pressurized leak check can be used to determine if you have a leak, and helps locate the leak by forcing it to leak under pressure. If you need help testing your system, a certified technician, like one from YourMechanic, will be able to test your cooling system to determine cause of the overheating issue.

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. Constantly overheating 2003 Dodge Durango

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: Car has oil in coolant

Hi there. Oil inside the coolant reservoir can mean you either have a cracked head, A blown head gasket, or a warped head, or all of the above. To be safe, I would not even recommend fixing the head. I...

Q: Engine oil light flickers when I make a stop

The light is flickering on and off due to the oil pressure being low below 4 psi at idle or the oil pressure sensor is not working correctly. The only way to know for sure is to do an oil...

Q: module or unit?

Hi there. From the description you have provided, your vehicle Check Engine Light on with lots of warnings and exterior lighting acting weird, sounds like there may be a charging system related problem. I would recommend not driving your vehicle...

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...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...