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Old 02-07-2002, 12:06 PM
Donald P Klybas
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Diesel running hot.

I have a 84, 300sd which is now running 20 degrees hotter (at 100). Replaced thermostat, radiator ok, no signs of oil or bubles in expansion tank, hoses ok, heat works, v-belts ok, fan still there. Noticed that the temperature guage does fluctuate from time to time, as does the fuel gauge.
What do you think?
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Old 02-07-2002, 07:58 PM
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if every thing checks out then could just be the gauge it shouldnt bounce around like that.
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Old 02-07-2002, 09:38 PM
Registered User
Join Date: Jan 2002
Posts: 18,353
If the gauge is correct, it could be a bad fan clutch.
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Old 02-08-2002, 02:02 PM
Ali Al-Chalabi's Avatar
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Join Date: Nov 2000
Location: Knoxville, TN
Posts: 1,837
Under what conditions is your car running at these temps? Also, is the fluctuation in relation to speed, where temp goes down on highway and up in traffic?
Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record
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