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Hot Hose?

ajeeperwannabe

NAXJA Member #1367
Location
Burlington NC
What causes the small hose going from the pressure bottle to the thermostat to get so hot you can't hold onto it, but the top radiator hose you can hold on to with out any problem? '87 4.0
 
Before you replace the thermostat, search for 5-90's writeup on drilling the thermostat. It will help the engine purge air much better.
 
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