Overheat Under Load Problem ?? Help
#1
Overheat Under Load Problem ?? Help
I have a 98 24v cummins with 238,000 miles. The truck runs fine under normal conditions. I towed my 10,000lb camper to the coast last week and the temp began to run hot after about 30 minutes. I stopped at the local auto store and replaced the thermostat. The radiator has been recently flushed also. the truck normally stays on about 190.
After getting on flat ground I put the truck in overdrive. This is when it heats up. I can push the button to go back to drive and within 20 seconds the temp guage goes from 240+ back down to about 200 degrees, the temp guage really moves back down quick. I know the truck can't possibly cool down that fast. (I think).
Any suggestions would be greatly appreciated.
I was told a fan clutch wearing out could be on possible cause.
Thanks
Chris
After getting on flat ground I put the truck in overdrive. This is when it heats up. I can push the button to go back to drive and within 20 seconds the temp guage goes from 240+ back down to about 200 degrees, the temp guage really moves back down quick. I know the truck can't possibly cool down that fast. (I think).
Any suggestions would be greatly appreciated.
I was told a fan clutch wearing out could be on possible cause.
Thanks
Chris
#2
RE: Overheat Under Load Problem ?? Help
it very well could be the fan clutch. Try to spin the fan.... if it spins freely, you have a bad fan clutch. It should be very tight to turn.
It could also be your torque converter. You have a lot of miles on your truck and if it's never been dealt with..... I bet that is your problem.
It could also be your torque converter. You have a lot of miles on your truck and if it's never been dealt with..... I bet that is your problem.
#3
#5
RE: Overheat Under Load Problem ?? Help
The engine temp will only be warmer if the auto trans fluid lines are routed through the engine radiator. They do this to eliminate the need for a separate radiator for the transmission. But I bet your 98 has a separate radiator for transmission cooling. Look up by the radiator for a "mini" radiator, most likely in front of the engine radiator, that is anywhere from 6"x12" to 12"x24". If you have an external transmission cooler, then the torque converter is not causing your increased temps.
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#7
RE: Overheat Under Load Problem ?? Help
ORIGINAL: triton
it very well could be the fan clutch. Try to spin the fan.... if it spins freely, you have a bad fan clutch. It should be very tight to turn.
It could also be your torque converter. You have a lot of miles on your truck and if it's never been dealt with..... I bet that is your problem.
it very well could be the fan clutch. Try to spin the fan.... if it spins freely, you have a bad fan clutch. It should be very tight to turn.
It could also be your torque converter. You have a lot of miles on your truck and if it's never been dealt with..... I bet that is your problem.
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#8
RE: Overheat Under Load Problem ?? Help
ORIGINAL: jostep
I thought the fan should spin freely if it was good and be tight if it had a problem? Do I have it backwards?
ORIGINAL: triton
it very well could be the fan clutch. Try to spin the fan.... if it spins freely, you have a bad fan clutch. It should be very tight to turn.
It could also be your torque converter. You have a lot of miles on your truck and if it's never been dealt with..... I bet that is your problem.
it very well could be the fan clutch. Try to spin the fan.... if it spins freely, you have a bad fan clutch. It should be very tight to turn.
It could also be your torque converter. You have a lot of miles on your truck and if it's never been dealt with..... I bet that is your problem.
#9
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