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Dieseldog92 02-20-2009 03:41 PM

Running cold
 
My 92 d-350 has been running cold for a couple weeks. The temp gauge will barely lift off of c no matter how long i run it. And the heater wont work. I was thinkin it could be the thermostat or heater core?

Heath 02-20-2009 03:57 PM

Sounds like a stuck thermostat?

RSWORDS 02-20-2009 04:42 PM

X2

Nevflatbed 02-20-2009 07:42 PM

That's exactly what that is. Replace it with a good thermostat and you will be warm and happy!

diesel pap 02-20-2009 07:45 PM

i agree with all the above

Greg G 02-25-2009 01:54 PM

Ya know that the Thermo might just be the problem. But - did you also check the level in the radiator? If you happen to have a leak in the cooling system and loose antifreeze. A low coolant level will do the same thing.

RSWORDS 02-25-2009 02:38 PM


Originally Posted by Greg G (Post 294771)
Ya know that the Thermo might just be the problem. But - did you also check the level in the radiator? If you happen to have a leak in the cooling system and loose antifreeze. A low coolant level will do the same thing.

Good point.

Dieseldog92 02-26-2009 09:00 AM

My water pump leaks so im constantly adding coolant. Im sure it is the thermostat but how much of a hassle will it be to change? On my blazer i can do it blind folded

scrambler500 03-25-2009 08:02 PM

you could have a short in the gauge thats what to me

94cummins12v 03-26-2009 12:03 AM

if the heater was working then it might be a short in the guage, the temp sender dont effect the heating, change the t-stat and you should be good


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