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Originally Posted by armallard
As posted in the last post i described what was going on. no the motor is not overheating, i have no codes,i guess the controls are working properly,never have had a problem with it. Its a 98 with 88,000 miles, vortec v6 motor,
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The more details you can give us the better we can help you.
It is hard for us to see it over this boob tube and key board.
So bear with us.
First thing is the system full of coolant?
When it is cooled down.
Get that rad cap off and look in there.
Next is it automatic heater or manual heater controls.
In your first post you said it was going to 220 and no heat and when it dropped back to 195 it worked.
That does not sound good.
Does it do this real fast or just when you drive it?
Start with a good thermostat and rad full of coolant and see what it does.
Work them heater controls and make sure it is switching from ac to heater and defrost and the tempt goes from hot to cold.
When the engine is at 195 feel the inlet and outlet heater hoses and let us know how they feel.
Post back how it goes.