Skip the auto shop - Our mechanics make house calls

Q: My truck been running hot for a couple months now I change the water pump and thermostat even the fan clutch but last week a hole

asked by on

What can be causing my truck to run hot

My car has 189 miles.
My car has an automatic transmission.

A: Hello. I will be glad to help you with your...

Hello. I will be glad to help you with your 2007 Dodge Nitro. If you have already changed the water pump and thermostat, one obvious thing to check is whether the radiator is blocked (internally or externally) or you have other blockages elsewhere in the cooling system.

In regard to the radiator, you want to check for any restriction in the radiator due to sediment or debris; a flow test can be performed. The radiator cap is also critical. It must hold pressure to the specified level. Also, it is critical that the radiator fans, and cooling condenser fan, are working properly although you did mention that you replaced the fan clutch.

Less common causes of overheating are exhaust gas leaking into the coolant from a blown head gasket and the wrong engine timing. You even have to consider the possibility that one or more of your brakes are dragging. If you would like to have this checked, a certified mechanic from YourMechanic can diagnose the overheating issue and get to the root cause.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: After heating core replacement, oil gone and engine ruined

Hello. The heater core would not have anything to do with the oil. If anything they may not have properly installed one of the heater hoses which may have causes the coolant to leak which would have caused the engine...

Q: Burning smell coming from rear of van

Hi there, it sounds like your pads are rubbing against the rotor creating excess heat. Normally the pads release slightly off of rotor when the brakes are released and the wheels start moving. If the issue is still happening after...

Q: 07 nitro overheating on me... water pump? thermostat? radiator cap? best way to diagnose

Hello. There can be a few possibilities that can cause the overheating condition. Have the radiator and pressure cap tested to make they hold pressure. Look for leaks at the water pump. The pump will show leak coming front the...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.