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P0125 Diagnostic Trouble Code Discussion for March 2013

Insufficient Coolant Temperature For Closed Loop

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Trouble Ticket Help Requests for DTC P0125
Help Request Posted
2002 Ford Explorer Sport Trac XL 4.0L Poor Fuel Economy, MIL Lamp on VIN: 1FMZU77E52
P0125: temp below threshold for closed lood operation. This one has me stumped. Thought this would be a simple fix with a t stat. Looking for hidden radiator or resevior. I cant make this truck get hot unless I disable the cooling fan. Fan is not locked and will almost freewheel. I can stop it with a piece of card...
March 30, 2013