P0128 and P0128pd | Ford Explorer Forums - Serious Explorations

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P0128 and P0128pd

chisoxfan73

New Member
Joined
March 13, 2013
Messages
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City, State
Tinley Park, il
Year, Model & Trim Level
2008 Sport-Trac
Keep getting the P0128 and P0128pd code in my 2008 Sport-Trac. Truck has heat, not great, but warm. Pulled and tested the thermostat and it seemed operational after dropping it in boiling water. Changed the temperature sensor and erased the codes. Check engine light was off for 3 days, heat was back to where it should be, but the light popped back on today. Any other direction i can go with this problem? Thank You.
 












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