C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

180 degree thermostat

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Old Apr 9, 2008 | 02:30 PM
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Default 180 degree thermostat

I put in a 180 degree thermostat and now my heater does not blow hot.Anybody think this might be the problem?Vette runs at about 177/180 degrees.When it gets up to 195 it will put out heat for a little while then cool off.Both lines to heater core are very hot to the touch.This is in an 85 vette.
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Old Apr 9, 2008 | 04:45 PM
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Anybody think this might be the problem?
Short answer -- no.

I run a 160deg T-stat year around and the heater will roast you in freezing weather.

Check to see if the air blend door in the A/C plenum is in the correct position to deliver heat.
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Old Apr 9, 2008 | 04:59 PM
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Originally Posted by 65Z01
Short answer -- no.

I run a 160deg T-stat year around and the heater will roast you in freezing weather.

Check to see if the air blend door in the A/C plenum is in the correct position to deliver heat.


Thermostat isnt the issue here.
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Old Apr 9, 2008 | 07:41 PM
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Thanks for the replys I'll check it out.
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Old Apr 9, 2008 | 07:51 PM
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Originally Posted by steven mack
Both lines to heater core are very hot to the touch.This is in an 85 vette.
Both? Is the heater water valve opening? The thermostat opening spec isn't the problem.

RACE ON!!!
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