Skip the auto shop - Our mechanics make house calls

Q: Truck overheats when temp outside is below freezing

asked by on

I'm having a problem with my truck overheating when I start it in the morning. when the day goes by and it warms up a little bit it runs just fine it's only when it's below freezing which is usually in the morning

My car has 240000 miles.
My car has an automatic transmission.

If the engine is only overheating when temperature drops below freezing then the most likely cause is the coolant in the engine is freezing due to incorrect mixture with too much water. Have the coolant flushed out and replace with new coolant mixed for the temperatures you are in. A mix of 50/50 coolant to distilled or deionized water. You may want to also replace the thermostat while the coolant is drained.

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
  1. Home
  2. Questions
  3. Truck overheats when temp outside is below freezing

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: My gear when in park doesn't allow ME ro take my key out I have to push up real hard to take out the key..

Hello, thank you for writing in. We need to determine if the key is getting stuck in the ignition cylinder, or if the shifter is not registering as being in park. First, make sure nothing is stuck in the way...

Q: Passenger side electric window intermittently will not go down

Hi there. Thanks for writing in about your 1999 Chevrolet Silverado 1500. There could be several causes for your passenger window to only work intermittently. But with the conditions you described, you will most likely need a replacement motor and...

Q: Still no spark, replaced crankshaft position sensor 2002 Dodge Ram 1500

Hello - for a "no spark condition", I would check for problem codes first, whether the Check Engine Light is on or not. Any saved codes, whether transient, or permanent, could be very helpful with this diagnosis. I would suspect,...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...