Kinda weird issue

Adrenaline73

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Feb 23, 2020
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2004 f250 6.0 it’s having an issue with heat it’s got heat until you let off the throttle. But even at 190 or 200 degrees it’s not the warmest heat I’ve checked the heater core it gets hot the blend door works and the heater valve on the hose works. It’s got a new thermostat as well. I was thinking maybe the water pump is starting to get weak? Coolant level is full as well. Any input would be greatly appreciated thanks.
 

bismic1

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The pump will not contact the front cover unless it fails.

OEM pumps are fine. The plastic impellor problems were a LONG time ago.
 
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