Q: I have a overheating problem but I have already changed my water pump and thermostat and had it checked for a blown head gasket

asked by on July 24, 2017

I changed my water pump and thermostat and I'm still having a overheating problem radiator is good and headgasket is good what else could it be

My car has 289000 miles.
My car has an automatic transmission.

If you do not have a blown headgasket and have a new water pump and thermostat then you must have a blockage in parts of the radiator or the cooling fan or fan clutch is defective. Check fan clutch is locking fan up when hot to the point when engine is off the fan cannot be spun more than a 1/4 turn when you try and spin the fan blade and it has heavy resistance. If it spins easy then replace fan clutch. If it works okay then check the radiator in different spots on the surface of the fins and feel for colder spots indicating no coolant is flowing through those fins. I you have colder spots then replace or flush radiator.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I clean the alloy wheels?
It’s important that you care for your car’s alloy wheels – dirt, grime, tar and other problems can leave them looking rough. Here’s how to ensure that they stay in good shape: Use a soft sponge. Use a mild soap....
How do I eject a CD?
To eject a CD, simply press the Eject button next to the CD slot. The CD will partially eject, at which point you can manually remove it.
Bouncy suspension with aftermarket kit.
Excessive bouncing in the suspension is typically caused by a lack of dampening for the amount of spring used. Dampening the ride is the function of shock absorbers and struts. They may be worn out, blown out (look for signs...
My brake fluid light is on and won't go off
The brake fluid sensor in installed in the brake master cylinder. Try to remove the brake fluid sensor connector. The sensor is in the center of the master cylinder reservoir. If the light goes out then replace the sensor and...
Do its fuel injectors need to be cleaned and if they do, is there an effective way to clean them without removing them??
Hi there. This could be a faulty MAF (mass air flow sensor) (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement), which regulates the air going into the engine allowing for the proper air/fuel mixture. This could also be related to the idle air control module. This also...
My 06 PT Cruiser will not start and the Check Engine Light is on. It turns but will not start, what does this mean?
Hello - first task is to determine what problem codes are set with the Check Engine Light. It is possible this is a problem with the wireless control module being "locked up". There is a Chrysler technical service bulletin (https://www.yourmechanic.com/article/how-to-use-a-technical-service-bulletin-tsb-to-diagnose-and-repair-a-car-by-valerie-johnston)...
Black smoke coming from exhaust and smell petrol
Hello, This may be related to a faulty throttle position sensor or potentially a dirty or failing mass air flow sensor. The mass air flow sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement) monitors air intake as it is mixed with fuel prior to being injected...
My coolant light keeps coming on in my Volvo XC90 and I notice that I keep having to fill it because it keeps going below the max
It sounds like the leaking may be potentially be near or at the water pump, resulting in the coolant leaking onto the belt and causing the squeaking sound. The other possibility may be that the squeaking may be indicating that...
Where is the fuel pump relay on 2011 bmw 328i coupe
The fuel pump control module is behind the right rear side interior panel. The fuel pump is under right rear seat.

Related articles

A Buyer’s Guide to the 2012 Nissan Juke
The The 2012 Nissan Juke is part crossover, part sports car, and part radical looking car. It has five doors, folding rear seats, and a rear hatch for easy access to the cargo area. The seats fold flat offering extra...
A Buyer’s Guide to the 2012 Nissan Altima Hybrid
The The Nissan Altima is already a favorite among mid-sized sedans, but it gained even more points with a lot of car buyers with the option to buy a 2012 Nissan Altima Hybrid. Though the four-cylinder Nissan Altima was already...
The Best Used Cars to Buy If You Like to Go Off-Roading
Your Your best bet for off-roading is a 4x4 SUV. Depending on the model that pleases you most, though, you might have to shop around a bit to find a good used one. That’s simply because off-roaders typically become very...