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Old 12-03-2010
Thread Starter
Join Date: Jun 2010
Location: Acworth, GA
Posts: 4
Heater Problems

The heat in the truck does not work well at idle speed when I'm stopped. However, I can place truck in neutral and rev the engine and get warm/hot again. I have backflushed the heater core and added new coolant. Could this be an indication the water pump is failing. Taking more RPM's and increasing pump head to get the water through the system. Or I guess maybe something with the heater core. It's a 2000 year truck. Any ideas?
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Old 12-09-2010
Join Date: Dec 2010
Location: bham, wa
Posts: 1
I had a similar problem. My truck wasn't coming up to temp, seems the thermostat was stuck open. $6 fix.

Changing the water pump was a P.I.T.A. check the thermostat first. 5 minutes and $5.

just my $.02
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Old 12-11-2010
Ford04Ranger4.0's Avatar
Join Date: Dec 2008
Location: Plattsburgh, New York
Posts: 3,390
sounds like a thermostat
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