Skip the auto shop - Our mechanics make house calls

Q: Car overheating after new water pump

asked by on

My car was overheating, so I changed the thermostat and water pump. Then it stopped overheating, but after a few miles, it lost power and sounded like the valves were rattling. Then the engine shut off. I let it set for 15 to 20 minutes. I jumpstarted the battery, which had died, and was able to drive it home. But as I got close to my house, it started making the rattling sound again and started to overheat. So I pulled off the road, turned the car off until the temperature went down, and then drove it home. There are no visible leaks in or around the engine or on the ground under it.

A: Hello. It sounds like you may have a couple...

Hello. It sounds like you may have a couple of issues going on with your vehicle. The overheating is the first concern. If it is randomly overheating then a block test needs to be done. This would indicate a leak in a head gasket, which is common on this vehicle. It can also be a coolant leak in the intake manifold. If there is water getting into the oil then the oil pump would have issues pumping up the lifters which will cause valve noise. This can also be caused by a failing ignition control module. The module is located under the ignition coils and will intermittently fail when it gets hot. This may be why it runs better when it is restarted. This module can be removed and tested at most auto parts stores. The block test should be done first. If you are looking to have this done, consider YourMechanic, as a certified mechanic can come to your office to diagnose why your car is overheating.

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: Car keeps running hot even after i put in a new thermostat

The brown substance coming from the radiator may suggest a more serious problem, such as a blown had gasket. When this happens, the cylinder head gasket between the engine block and the cylinder head fails due to excessive heat. This...

Q: My car would not turn over and made a loud noise when trying to start it

This depends on what the loud noise was. If a starter was not working, then you would hear either a simultaneous clicking sound for a low battery or a one time click for the starter solenoid sticking. If you heard...

Q: I have rebuild transmission and is not driving out of D and D3.

Hi there. Check the shifter cable alignment to the transmission and make sure that the main valve is aligned up properly. The main valve could be off aligned causing the vehicle to not drive in the D and D3 selections....

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...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...