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Truck over heats when idled
2003 Ford F-250 Super Duty

Truck over heats when idled

(2003 Ford F-250 Super Duty)
2003 Ford F-250 super duty truck. Truck temp will rise to hot when moving at steady speed or sitting idle.
What seems to make the problem better or worse? Idle or constant speed. When RPMs rise it will cool off
How long have you had this problem? Few weeks
Tags: ford, f 250 super duty
1 answer & 1 comment
Popular Answer
on August 04, 2019

Since raising engine rpms lowers coolant temperature - insufficient airflow into the engine bay is suspect - first thing to check is the radiator cooling fan operation.

Other possibilities certainly exist.
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on August 04, 2019

Fan ‘centrifugal clutch’ malfunction.
General Diagnosis
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on August 04, 2019

Since raising engine rpms lowers coolant temperature - insufficient airflow into the engine bay is suspect - first thing to check is the radiator cooling fan operation.

Other possibilities certainly exist.
Sign in to reply
on August 04, 2019

Fan ‘centrifugal clutch’ malfunction.

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