Why does my 97 Suburban temp have to get to 260 before thermostat will open from cold start?

zwhughes Member Posts: 3

September 2015 edited September 2015 in Chevrolet

After that it works fine til it cools off

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Answers

imidazol97 Crossroads of America I70 & I75 Member Posts: 25,643

October 2015

zwhughes said:
After that it works fine til it cools off
Thermostat in backwards?
Air in system?

2014 Malibu 2LT, 2015 Cruze 2LT,

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thecardoc3 Member Posts: 5,427

October 2015

imidazol97 said:
Air in system?
Most likely.

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zwhughes Member Posts: 3

October 2015

How do I purge it ??? The air that is

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