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.

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?
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. Car overheating after new water pump

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: Q: Changing the thermostat

When a car is overheating and the coolant level is good, the thermostat is usually the first place you go. Changing the thermostat is the quickest and least expensive step to solve the problem and often is the only thing...

Q: AC works if remove fuse and put back in again

Hi there. In most cases, when this type of situation occurs, it's due to either a short in the electrical relay that powers the compressor or a problem with the fuse box or fuse connection. To be honest, these problems...

Q: SUV stops & idles at red lights

I would recommend having your alternator tested. If the voltage regulator inside the alternator has failed allowing the alternator to overcharge the battery, symptoms such as the one your described may occur. These symptoms would be the result of the...

Related articles

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...
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...
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.