Skip the auto shop - Our mechanics make house calls

Q: Temperature gauges jumping and fan not running on a 2008 Avenger

asked by on

I have an O8 Avenger with the temperature gauges unadjusted. The engine is overheating. Gauges jump up and down even when the radiator has fluid. I pulled over and saw the engine overheated and the fan wasn't running. Any ideas?

A: Of course, the fans have to work correctly....

Of course, the fans have to work correctly. They might not work for lots of reasons. First thing is to put in a new thermostat. Because, if you’ve got a stick in thermostat, the engine can get hot, but then the temperature sensor might not get hot and it won’t turn the fans on. So try the simple things like that first. But, if you put a new thermostat that is full of coolant, the fans will still not work right. Then you would have to get fan cooling system all checked out. If that’s the case, then you’ll want to get in touch with a technician and have them run some scans. They can figure out what is going on electronically.

Change the thermostat first, because a lot of times, it’s just a stuck-in thermostat that is cheap and easy repair. If you want to have the overheating problem properly diagnosed by a certified mechanic, a technician from YourMechanic can come to your home or office to check your vehicle and make any needed repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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: Luke warm heat from heater

This may be a thermostat issue where the thermostat is not closing at the right temperatures resulting in the coolant running continuously throughout the motor which does not allow the engine to reach normal operating temperature. As you may know,...

Q: Stiff power steering

If your vehicle has hydraulic power steering, the level is probably low. If it is low, there may be a leak. If not, the pump may have failed. If your vehicle has electronic power steering, the fuse may be blown...

Q: p0117 code and engine heating to 75% of temp gauge (but no further)

You will have to scan the computer when the engine is cold and look at the data to compare the ECT and the IAT. This is the inlet air temperature sensor and the engine coolant temperature sensor. Both sensors will...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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.