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**DANTIP** · 07-07-2011, 03:12 PM

Generally, when the overheating problem is happening at idle (very low load) and it goes away at highway speed (much higher load), the cause is poor air-flow THROUGH THE RADIATOR at idle. I assume you have a radiator shroud and it fits properly against the radiator. Also the diameter of the replacement (flex) fan is the same as the original that was designed for the shroud. A few pics may be helpful.

Dan

07-07-2011, 03:12 PM	#2
DANTIP Registered User Join Date: Sep 2001 Location: Fort Wayne, Indiana, USA Posts: 1,890	Re: Running HOT! ! ! Generally, when the overheating problem is happening at idle (very low load) and it goes away at highway speed (much higher load), the cause is poor air-flow THROUGH THE RADIATOR at idle. I assume you have a radiator shroud and it fits properly against the radiator. Also the diameter of the replacement (flex) fan is the same as the original that was designed for the shroud. A few pics may be helpful. Dan