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2001 Ford Ranger heater won't heat when temp low

Tiny
MGALEXA
  • MEMBER
  • 2001 FORD RANGER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 105,000 MILES
I've watched the temp gauge and it mid-lines as always, after ~5-7 mins or so. Therefore, doesn't appear to be thermostate. Seems when temp goes up, it heats better. Any ideas?
Thursday, November 12th, 2009 AT 12:37 PM

1 Reply

Tiny
LELAND1970
  • MEMBER
  • 1 POST
I have a 2001 2.3L that just had a similar problem. After the engine was warm, the temp. Needle seemed to be where it normally was - in the middle; but when the truck was idling (at a red light for example) the engine would not blow warm air. The fix I found was that the coolant level was low. I added coolant and it seems fine now. I guess if the coolant is to low, then at idle speed, the coolant doesn't make it to the heater core, so no heat can be picked up to circulate.
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Monday, November 30th, 2009 AT 9:28 AM

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