Temperture Inaccuracy - Overhead Console

[HBarlow]

The temperature reading in my overhead console always indicates about 4 or 5 degrees higher than actual temperature. Where is the sensor located? I realize that the thermometer has a delayed readout and that engine compartment temperature can affect the reading but mine seems to have a permanent error. Are all of them inaccurate? Can they be adjusted? Is there a recommended cure? Should I plan on a trip to my dealer for a warranty replacement?



Any advice or information will be appreciated.



Harvey

 

[Idaho Native]

HBarlow,



The sensor on my '99 is located right next to the upper latch mechanism in the middle of the grille. Mine is usually right on. It looks like a simple piece of black plastic about the size of your thumb with a wire coming out of the bottom. Should be easy to locate.



My wife's '01 Durango had a misplaced piece of moulding that caused the engine compartment heat to go directly to the sensor. It showed about 20 degrees high! I put the piece of moulding where it belonged and now it's right on too.



We took the Durango to the dealer at first and they couldn't even find the sensor!!! I had to look over the shoulder of the parts man because I knew what it looked like on my Ram... that's how I found out that it had been tucked behind a piece of rubber moulding around the radiator shroud. Don't know what else to tell you... good luck.





Loren

 

[Dennis Garrett]

My 97 was the same way when I first got it. Couldn't get any dealers to look at it. One did replace the overhead console but it still read the same. I bought a new probe, but still didn't help. I found the sensor mounted low next to the left front bumper support. I decided to try & relocate it. I simply moved it up about a foot to a new location about even with the top of the bumper, under the left headlight. I actually went as high as I could by pulling up all of the slack in the wiring. So far, it's been deadly accurate ever since. I think it was picking up "prop wash" from the cooling fan, & heat from the street on a hot day.

 

[Bob Cochran]

Mind is in the same location as idaho Native said his was on the 99. Mine also reads 4 or 5 degrees higher than it should.

 

[HBarlow]

Inaccurate Thermometer

Thanks to each who replied.



I'll try to locate my sensor now that I know what to look for and where it should be. If the sensor does not appear to be fouled by a misplaced molding or in an obviously bad location where it picks up engine heat I guess I'll take the truck to my dealer and ask for a replacement while still under warranty.



Harvey