TwinTurbo.NET: Nissan 300ZX forum - Heater Core has no effect on Engine Overheat
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Subject Heater Core has no effect on Engine Overheat
     
Posted by Cjw3 on February 10, 2023 at 1:23 PM
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In Reply To Re: Lets Discuss.. posted by tian2bing on February 10, 2023 at 12:41 PM
     
Message The Heater Core in the Cab, actually has a Proportional Valve that controls the Flow of water for Heating the Cabin.. So the Inference here is during Hot days when the AC is on, and it's hot outside, there is usually NO Flow through the Heater Core.

The Block check is a complete tear down.. Lets Avoid that.

The Thermostat is an 'Intake T-Stat', that limits water Flow INTO the Block.. It's subject to Air Fowling and Debris Problems..

Might Re-Insert it into the Housing and let it do a Warm up in the Driveway till the Radiator gets warm to see if it might have been an Air Bubble?..

Cj

     
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