Q: 2006 Commander keeps running hot. The radiator has been replaced, what could be the problem?

asked by on

My Jeep Commander is running hot. The temperature gauge and radiator have been replaced but the Jeep runs hot after about 15 minutes of driving it. Also the hose that goes to the radiator was replaced. Do you know what it could be?

My car has 120000 miles.
My car has an automatic transmission.

There are a number of other things that may cause the motor to run hot such as a stuck thermostat or faulty cooling fans that may not be coming on at the correct intervals or speeds. The thermostat regulates the flow of the coolant in your car’s engine and controls when the coolant flows in and out of the motor from the radiator by opening and closing at specific temperatures. When your thermostat is not working properly or is stuck closed, this will not allow the coolant to properly circulate through the engine, which may cause the engine temperature to fluctuate erratically or in some cases just remain hot. When the thermostat is stuck open it can cause the coolant to circulate constantly resulting in the motor never reaching the correct operating temperature.

A faulty cooling fan that is not coming on at the correct times is usually caused by a faulty cooling fan relay. The coolant fan relay helps to maintain the proper coolant temperature by turning on and off at specific temperature thresholds. When this relay is not working properly, this can cause the fans to come on intermittently, stay on all the time or sometimes not at all. When this happens you will notice a temperature spike and drop occasionally as the fan comes on and off. I would suggest having an expert from Your Mechanic come to your location to diagnose and inspect your vehicle.

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. 2006 Commander keeps running hot. The radiator has been replaced, what could be the problem?

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: Engine died, do I have to replace it now?

The noise you are hearing could be one of several problems. The first and easiest to fix would be to use only manufacturer certified oil filters during oil and filter changes. The oil filter used may not have a built-in...

Q: Grinding noise, ABS light comes on

Without being able to hear the noise, it will be difficult to make an accurate determination. But based on the conditions that the noise develops, it seems to occur where a rotating component is contacting a stationary component when the...

Q: I drive a 2007 jeep commander, lately it has been not accelerating properly when I try to quickly accelerate. It drives fine somet

You should have the codes scanned from the computer systems forst to see if you have a transmission or engine problem. Te problem sounds like you may have a transmission torque converter problem or shift solenoid issue.

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.