Water temp?
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Freshman User
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Water temp?
Ok guys I'm not to sure what is going on. I have a 01 350 7.3.
And I have a scan gauge connected to it. My scan gauge reads -40 on the water temp but my dash gauge shows normal. I know that the dash is just a dummy gauge but this has me puzzled. Could this be a possible sensor issue? Please any help would be greatly appreciated.
Thanks,Chris
And I have a scan gauge connected to it. My scan gauge reads -40 on the water temp but my dash gauge shows normal. I know that the dash is just a dummy gauge but this has me puzzled. Could this be a possible sensor issue? Please any help would be greatly appreciated.
Thanks,Chris
Fleet Mechanic
Joined: Jan 2012
Posts: 1,841
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The first thing to do would be to make sure you're using the right codes if you mess up one digit in the programing of an x gauge you could get a whacky reading or just may not work at all did it work before and just Start acting up or did you just get it and hook it up
Lead Driver
Joined: Nov 2005
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#1 is, the water temp gauge on the dash is an actual working gauge, it does read the range of temp, it's not like the oil pressure gauge that is just reading on or off.
#2 is, there are two temp sensors, which one are you seeing on the scan tool?
#2 is, there are two temp sensors, which one are you seeing on the scan tool?
Fleet Mechanic
Joined: Jan 2012
Posts: 1,841
Likes: 6
I think I may have found your answer here's some info if you want to read through it
Coolant Temp sensor issues? - Ford Powerstroke Diesel Forum
Here is an x gauge code I copied from the above link let us know if it works Thanks to 505live on TheDieselstop for the info;
I found the codes to get coolant temp for my 7.3L out my Scangauge II xgauge:
TXD: C410F1221139
RXF: 046205110639
RXD: 3008
MTH: 00010002007F
Name: ECT
Here's the catch, and why I don't think scanguage advertises the code: The signal changes resolution part way through the warm-up and the math can't be triggered to change with it. It's really simple tho, below 127F it reads 2x the temperature, so as the vehicle warms up the reading is double until it reaches 127F. I.e., during w/u the gauge will read up to 254, then when crosses 254 it will switch to actual temp and drop to reading to the "actual" 127F, after which it remains accurate.
I punched this one in this morning, and verified it works on my xgauge.
Coolant Temp sensor issues? - Ford Powerstroke Diesel Forum
Here is an x gauge code I copied from the above link let us know if it works Thanks to 505live on TheDieselstop for the info;
I found the codes to get coolant temp for my 7.3L out my Scangauge II xgauge:
TXD: C410F1221139
RXF: 046205110639
RXD: 3008
MTH: 00010002007F
Name: ECT
Here's the catch, and why I don't think scanguage advertises the code: The signal changes resolution part way through the warm-up and the math can't be triggered to change with it. It's really simple tho, below 127F it reads 2x the temperature, so as the vehicle warms up the reading is double until it reaches 127F. I.e., during w/u the gauge will read up to 254, then when crosses 254 it will switch to actual temp and drop to reading to the "actual" 127F, after which it remains accurate.
I punched this one in this morning, and verified it works on my xgauge.
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Freshman User
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Ok update. I put in the Xcode and it works great thank you for your guys' input. So glad I found this forum.
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