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Power Strokes
6.7 Tech
Heater blows cold at idle
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[QUOTE="Jmiller3104, post: 1306067, member: 17939"] I google this but only find stuff on 6.0. i live in south Texas so it's not terribly cold but my operating temp won't get normal until i drive for a while,and if I stop, it's starts cooling off. Leads me to believe thermo is stuck open maybe? Once it gets temp, which takes way longer than my 7.3 did, it finally gets hot, then if I stop itstarts to get cold again, if im idling and I rev it up, it goes back hot. Read it could be weak water pump? Has anyone had Same problems? [/QUOTE]
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