temperature readout

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

dr012

Junior Member
Joined
Nov 21, 2024
Posts
3
Reaction score
1
Location
48847
Ram Year
2012
Engine
4.7
2017 Ram Laramie - The temperature readout on my truck is woefully inaccurate. Is there a fix for this?
 

Hemi395

Senior Member
Joined
Mar 18, 2013
Posts
9,501
Reaction score
17,655
Location
Cape Cod MA
Ram Year
2013
Engine
5.7 Hemi
Need a little more info, what is it reading vs what it should be?

I'm assuming you mean the display screen on the dash and not the gauge, the gauge is very inaccurate...
 

kurek

Senior Member
Joined
Aug 7, 2019
Posts
2,661
Reaction score
3,813
Location
Northwest
Ram Year
2015
Engine
Hemi 5.7
I read a long time ago that automakers started making deliberately inaccurate gauges for temperature and pressure because it was using up service writer time with weirdo customers asking about the needle pointing at a slightly different angle during normal operation. So they were fixed to hover in one spot after warmup unless an actual problem needs to be reported.

They previously had tried analog gauges with a wide acceptable range but that didn't help.

1742143525226.png "My temp needle is sometimes near the O in NORMAL and now it's near the R in NORMAL is that normal to be near the R in NORMAL I just want to know if it's normal"
 

04fxdwgi

Senior Member
Joined
May 19, 2023
Posts
1,702
Reaction score
3,569
Location
Coastal NE North Carolina
Ram Year
2016 1500 Sport
Engine
5.7 Hemi
^^^^^ LOL.... The '04 F150 ( I had one) was infamous for having a "fake" oil pressure gauge. There was just a pressure switch that made it read mid-scale.

There was a hack the had one replace the pressure switch with a sensor and remove a resistor to the gauge in the dash. When I did it it worked, just don't remember the resistor value.
 

RodeoRam

Senior Member
Supporting Member Air Force
Joined
Sep 11, 2018
Posts
632
Reaction score
1,123
Location
North Carolina
Ram Year
2018
Engine
Hemi 5.7 2500 CC
I read a long time ago that automakers started making deliberately inaccurate gauges for temperature and pressure because it was using up service writer time with weirdo customers asking about the needle pointing at a slightly different angle during normal operation. So they were fixed to hover in one spot after warmup unless an actual problem needs to be reported.

They previously had tried analog gauges with a wide acceptable range but that didn't help.

View attachment 562947 "My temp needle is sometimes near the O in NORMAL and now it's near the R in NORMAL is that normal to be near the R in NORMAL I just want to know if it's normal"
I wouldn't doubt it. I had an '87 F-150 with a 351 Windsor that had a temp gauge like that. The needle stayed between the N and O. One day near Christmas, I was headed to TN from CO on I-70 when the needle moved to between the O and R. Coolant was already boiling out of the overflow and both head gaskets were blown. For this and other reasons, that was the biggest POS I have ever owned and is the reason I will probably never own another Ford.
 
Back
Top