Skip the auto shop - Our mechanics make house calls

Q: Truck running hot. Already changed water pump, thermostat, and heater hose. No water in my oil. Still running hot

asked by on

I've changed my water pump, thermostat, and heater hose. My oil is clean . My radiator is working fine. It's still running hot.

My car has 125000 miles.
My car has an automatic transmission.

You will need to have your cooling fan clutch checked for lock up. If the clutch is replaced from lack of lock up when it gets hot then have the radiator checked for coolant flow through all the passages.

If you’re not able to pinpoint the issue I’d suggest getting soem help from a qualified technician, like one from YourMechanic, who can diagnose your overheating issue and help you fix it accordingly.

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!
  • Home
  • Questions
  • Truck running hot. Already changed water pump, thermostat, and heater hose. No water in my oil. Still running hot

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: Engine shaking and strange noise from the engine bay, also weird rpm at start up

Hello there, a few possible items can cause a similar noise to what you describe. Most likely it is an engine misfire, fuel pump problem, worn out fuel filter, dirty idle air valve (which you may be able to clean),...

Q: passlock problem

Hello - If you have a 2nd or 3rd key which is known to work, try those keys when your primary does not work. This will help isolate the problem to either the key or the reader. If only one...

Q: Coolant leaking onto engine

Cooling system leaks will only get worse over time. Please note the cooling system should never be opened or checked with the engine hot or while the system is pressurized or serious injury could occur. If the leak source is...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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.