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94-98 PowertrainDiscussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect...NO ADVERTISING
the CTS (Coolant Temperature Sensor) should be at the front of the motor near the thermostat.
In this pic of mine, the CTS is on the furtherest right, near the radiator hose, and the oil fill cap.
On a '97 12 valve the coolant temp sensor is inder the intake housing behind and slightly left of the fuel filter. I do not believe you can replace it without removing the filter.
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97 3500, 2 WD, G56, slightly bombed, 975,000+miles
If you are lucky enough to be in Texas, you are lucky enough.
its lotsa fun to get too and takes a mighty big wrench too so you will learn to cuss before you have changed this one!
i did mine when trans was out and it was still tight to work at!
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1994 3500 dually build date:12-93 new:trans, t case, cage long arm suspension sulastics, pre filter/heater MIA / HX35/40 4/5inch exh more much more
its lotsa fun to get too and takes a mighty big wrench too so you will learn to cuss before you have changed this one!
i did mine when trans was out and it was still tight to work at!
It's easy to get at with your hands but not with a tool.
I've never run into a bad coolant sensor but have run into at lot of them that aren't plugged in all the way or not plugged in at all.
For some reason the coolant sensor connector isn't like the rest of of the sensors used on the vehicle that are hard to pull apart.
It comes apart way too easy.
__________________ Bill
'95 2500 4wd auto
'95 3500 5 speed heavy hauler
Stock for one day
Well silly me. I assumed the '98 12 valve sitting in my garage had it's sensor in the same place as my '97. Wrong!!! So my info is bad, sorry. FWIW, the '98 has a big plug there, something else I need to change when I do the swap.
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97 3500, 2 WD, G56, slightly bombed, 975,000+miles
If you are lucky enough to be in Texas, you are lucky enough.
I assumed the '98 12 valve sitting in my garage had it's sensor in the same place as my '97. Wrong!!
Moving the sensor was part of Cummins solution to people complaining about the fluctuating coolant gauge on the earlier years.
That along with computer reprogramming.
The temp still fluctuates the same, you just can't see it.
__________________ Bill
'95 2500 4wd auto
'95 3500 5 speed heavy hauler
Stock for one day
I changed just used a big socket wasnt to bad at all maybe 15 mins the problem seems to be fixed now I will know forsure once i pull my trailer thanks for the help
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