Coolant temp

[Ted B111]

Have 97 Tahoe. 145000 miles. Have changed out hoses, coolant temp sensors, thermostat, radiator cap and water pump. It gest to operating temperature then drops down to 140 to 170.
Any idea why?

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

It is possible that you still have a fair amount of air in your cooling system.

 

[Ted B111]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

It is possible that you still have a fair amount of air in your cooling system.

Brain fart! Didn't think of air in the system.
Thanx for reminding me of simple maintenance procedures.
Will post on the fix.
Thanx.