Q: Q: truck overheating

asked by on

truck overheats during extended drives or putting more than normal strain on the engine ie pulling a boat or going up big hills. truck will not overheat while sitting still or normal driving. as soon as i slow down or turn on heater temp goes back down to normal. i have flushed and changed coolant and changed the thermostat.

My car has 104000 miles.
My car has an automatic transmission.

Hi there. The problem you’re describing tends to occur when one of two issues exist. First, overheating while towing can occur when air bubbles are trapped in the coolant lines. A second issue could be the coolant temperature sensor that is damaged or the electrical connector attached is faulty. Sometimes you will have to prime the radiator in order to avoid air bubbles.

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. Q: truck overheating

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: Air injection valve stuck closed

Hi. The air injection valve on the Toyota Tundra V8s is a known problem and your Toyota dealer has a recall to fix it for free on 2007-11 models.

Q: Motor sounds

Hi There, It sounds like you may have some valve train noise as a result of the low oil that may have caused some damage. If the motor is still low on oil, this may also cause the ticking sound...

Q: Car barely going and dying

This can be caused by a number of different problems. Most of the time it occurs when the fuel pressure is low due to a failing fuel pump. It can also be a bad sensor, such as the air flow...

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...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...