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Power Strokes
6.4 Tech
No heat at idle.
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[QUOTE="08_6.4stroker, post: 1110909, member: 5348"] Gonna bump this up. I have supplemental heat so my truck starts heating pretty much right away. Now once the coolant gets to about 160 degrees all heat goes away until the thermostat opens at 203 degrees. Now after that the coolant stays right at 190 and I have heat. Until I shut the truck off and the coolant temp gets below 160 then it goes back up to 203 I get heat and it drops to 190. I've already replaced the thermostats for a second time. I've also replaced the rad since it was leaking. Not sure what the problem could be. [/QUOTE]
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No heat at idle.
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