Q: Why does my truck start then overheat on shut off after 10 minutes of driving

asked by on

I can start my truck but it is hard to start. As well as it shuts off after running for only 10 minutes. Overheating is a problem as well. There is also oil in the spark plug wells.

My car has 260000 miles.
My car has an automatic transmission.

Overheating can be caused by a number of things such as low coolant levels, a faulty thermostat, a clogged radiator or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning on and off at specific temperature thresholds. When this switch is not working properly, this can cause the fans to come on intermittently, all the time or sometimes not at all. When this happens you will notice a temperature spike and drop occasionally as the fan comes on and off. When your thermostat is not working properly or is stuck closed, this will not allow the coolant to properly circulate through the engine, which may cause the engine temperature to fluctuate erratically or in some cases just remain hot. You may also have a water pump that is beginning to fail. Water pumps often times will begin to produce a bit of a whining sound when they are starting to fail. A common problem also associated with this is the water pump may begin to leak around the water pump shaft due to the seal being damaged. In addition to leaking around the pump, you may have a leak elsewhere in the cooling system coming from one of the hoses going to or from the radiator. Lastly, you may have a failing cylinder head gasket allowing coolant to leak from the water passages into the cylinders resulting in the coolant being burnt in the combustion chamber with the fuel. If this is the case, you may also notice a bit of white smoke coming from your exhaust which is a product of the coolant being turned into a steam like vapor. I would suggest having an expert from Your Mechanic come to your home to diagnose your cooling system.

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. Why does my truck start then overheat on shut off after 10 minutes of driving

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: How can I turn the back windshield wiper off?

Hi Sam. Thanks for sending in your question today. It's quite possible that you have an electrical short or perhaps a stuck open or damaged electrical relay that is activating the wiper when the brake pedal is pressed. As such,...

Q: cylinder number 4 has a misfire.

Billing question sent to CS for the cost to diagnose and repair a possible burned valve on a 2008 Jeep Commander with a V6-3.7L engine.

Q: Lower control arm snapped at axel can i drive if i go slow

Hi Tiffany. I would strongly recommend against driving with any damage to the front suspension. Even driving slowly can create a rather serious safety issue. It's always best in these cases to defer to caution and have the vehicle towed....

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...
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...
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.