Thread: OE temp gauge

And this is located where on the engine?

And this is located where on the engine?

see what cummins can do for you. it's part of the motor, so i'd assume it could be found there. try a napa autoparts if you have one near you. they're usually pretty reasonably priced too.

that might be why its reading high. atleast mine did that. i went to the hardware store and bought this set up. works good and never leaks. one reason i did it was my headgasket is leaking compression into my cooling system if i boost real hard so every few days id have to bleed some air out.

If you have the owners manual it tells you where the truck should be running at normal op temp, empty and loaded (illustrations, not specs), but I assume you know where its suppose to be. Any how, I bought a set of gauges at harbor freight for testing purposes (which ended up permanently on my tractor) for $10-$20. Still working and accurate, but something like that would put your mind at ease and tell you what temps you are seeing and whether...

that might be why its reading high. atleast mine did that. i went to the hardware store and bought this set up. works good and never leaks. one reason i did it was my headgasket is leaking compression into my cooling system if i boost real hard so every few days id have to bleed some air out.

I'd suspect the sending unit before condemning the water pump. WHat exactly are you seeing and having an issue with? If the needle swings between 2 lines on the gauge, it's the thermostat- many aftermarket ones will do that if the jiggle pins arent oriented at the 12 and 6 positions.

GET A MECHANICAL GAUGE! All the electrics in these trucks is garbage. I bet Dodge spent all of 37 cents per temp gauge unit from their supplier. Get a REAL gauge and KNOW what's going on before you spend any more $$. H.

I was thinking about this thread today as I drove along the highway; my OEM gage has the third mark at the start of the middle section of the needle sweep, which is presumably the "normal" range. My needle runs to about a third into the normal range, then back to just a tad warmer than the third needle and stays there. I have the Cummins t-stat and I think it's working perfectly. From what I can see yours is too. On a...

Check the gauge. Unplug the sensor and turn the key on. There should be a definite change there, either max or zero. Also check the radiator fins to make sure they're clean and you have good airflow while running. Does it warm up to that mark? If not, it's a gauge or wiring problem.