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Engine overheats and heater only blowing cold air

Tiny
ROBERROSSIII
  • MEMBER
  • 2006 CHEVROLET COLORADO
  • 2.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
On Friday I shut my truck off. When out of town for the weekend. Monday morning when to start truck and notice thermostat was reading high right after I started ignition. Turned on the defroster, blowing cold air. Checked radiator it was cold and radiator hose had no pressure. Please help. Thank you
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Monday, March 29th, 2021 AT 9:55 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

It sounds low on coolant. When it's cold, check both the overflow reservoir and also the radiator itself for the coolant level.

https://www.2carpros.com/articles/engine-coolant-59420607

Let me know what you find.

Joe
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Tuesday, March 30th, 2021 AT 7:15 PM

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