• Welcome to The Truck Stop! We see you haven't REGISTERED yet.

    Your truck knowledge is missing!
    • Registration is FREE , all we need is your birthday and email. (We don't share ANY data with ANYONE)
    • We have tons of knowledge here for your diesel truck!
    • Post your own topics and reply to existing threads to help others out!
    • NO ADS! The site is fully functional and ad free!
    CLICK HERE TO REGISTER!

    Problems registering? Click here to contact us!

    Already registered, but need a PASSWORD RESET? CLICK HERE TO RESET YOUR PASSWORD!

95 gasser temp sensor.

ak diesel driver

ak diesel driver

6.5 driver
Messages
19,953
Reaction score
21,440
Location
alaska
Posted this here to get the most views/response. Helping a friend with his 95 k2500 454 truck. Has 2 temp sensors one on driver's side for the gauge one on pass side for the ECM. So the pass side sensor is broken barely all there. We cannot find the sensor that fits the plug. I've gone through all the sensors on RA and none of the pic's show the correct one. Any ideas on where to look for one??422d40c5-0756-4233-80e5-3a4d747e6317.jpg
All the one wire ones have kind of a mushroom shape instead of the rounded sides like in the pic.
 
I don't know if the 98 is different I will go down and look at my truck in a few minutes. And see if the sensor is different and if I can get any numbers off of it. If my memory serves right. I think my temperature sensors are on passenger side and at the water neck up in the front of the valley but I will double check in a little bit.
 
Hey Les, I apologize I had taken the day off to take my wife to an appointment and they had canceled when I read this message. About 10 minutes later they called to say it was on and I totally forgot. The blue connector comes out of the wiring harness on the driver side but it attaches to this white connector that then goes down to the temperature sensor on the passenger side17704151987262965855461048305827.jpg
 
No problem. So to update what I've learned so far. Yes the one at the thermostat is for the ECM. I had a scanner on it and could watch it go to -40 when unplugged. Drivers side is definitely for the gauge so what I don't know is the purpose or function of the one on the passenger side.
 
Looks to be the auxiliary cooling fan temperature switch.

Are the coolant temp sensors the same?

Hi everyone this is my first post here. I always read on this site and I'm so happy it exists. So, what is the difference between the sensor near the thermostat vs the one on drivers side head? I know the thermostat one is for the ecu and the head is for the dash but I cannot find any info on...
www.gmt400.com www.gmt400.com
 
iirc all 454 models in that era had an aux electric cooling fan behind the grill. it's mainly used for when the AC is on, but also will turn on over a certain engine temp which I think doesn't run through the ECM, the sensor is simply a ground switch that will trigger the relay for the fan.

if there isn't a fan behind the grill on the passenger side (pusher fan) then look for a connector for that fan, it might have gotten removed for whatever reason or GM just didn't put one in.
 
So you are indeed correct as usual glagulator. There is an electric fan in front of the cooling stack . I never would have guessed. It also makes me question why the diesels didn't have one.
 
ak diesel driver said:
So you are indeed correct as usual glagulator. There is an electric fan in front of the cooling stack . I never would have guessed. It also makes me question why the diesels didn't have one.
Click to expand...
And it would come on at about 205*F.
IDK if it would push air through the cooling stack, but, every little bit would help.
 
You must log in or register to reply here.
Back
Top