Running hot

ROSALYN36

MEMBER
2004 CHEVROLET TRAILBLAZER
4.2L
6 CYL
4WD
AUTOMATIC
175 MILES

I replace a thermostat and water pump on my truck. When I drive it it is fine, but if I drive a long period of time it gets hot and I have to pull over to cool down and I can hear the water boiling in the coolant bowl. It leaks out coolant on the passenger side on the ground. Can it be my heater core?

Sunday, July 21st, 2019 AT 2:01 PM

3 Replies

ASEMASTER6371

MECHANIC
52,796 POSTS

Good evening,

Where is the leak located? Is it from the surge tank cap?

https://www.2carpros.com/articles/engine-overheating-or-running-hot

Pressure test the system to determine the leak.

https://www.2carpros.com/articles/radiator-pressure-test

Roy

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Sunday, July 21st, 2019 AT 4:11 PM

ROSALYN36

MEMBER
2 POSTS

It is located under the car by the coolant bowl, but you can see it on the side of the right tire on the passenger side. I have a video of it.

Video (Click to make bigger)

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Sunday, July 21st, 2019 AT 8:54 PM

ASEMASTER6371

MECHANIC
52,796 POSTS

That is too general. I cannot see where it is leaking.

You need to do a pressure test as I suggested and look under the hood for the leak. Then post you video for me to view.

Roy

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Monday, July 22nd, 2019 AT 5:21 AM