Trans Temp
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Elder User
Joined: Sep 2007
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Trans Temp
Had my modis scanner hooked up today and notice my trans temp on my guages was off from my scanner. The temp difference was about 40 deg, when my guage read 150, my scanner read 190. Could my guages be that far off ? Shouldn't the readings be the same since it reads electronically ?
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Senior User
Joined: Mar 2009
Posts: 354
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From: Patterson, Ca.
Had my modis scanner hooked up today and notice my trans temp on my guages was off from my scanner. The temp difference was about 40 deg, when my guage read 150, my scanner read 190. Could my guages be that far off ? Shouldn't the readings be the same since it reads electronically ?
Thanks
Thanks
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Joined: Feb 2009
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I notice the same as Bill on my truck and others. Usually 5*F-10*F but not haven't seen much more than that.
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 27
From: Mesa AZ
Had my modis scanner hooked up today and notice my trans temp on my guages was off from my scanner. The temp difference was about 40 deg, when my guage read 150, my scanner read 190. Could my guages be that far off ? Shouldn't the readings be the same since it reads electronically ?
Thanks
Thanks
https://www.ford-trucks.com/forums/9...emp-gauge.html
I came to a conclusion in my last post on that thread that may apply to your situation. Check it out and let me know if you have any questions or additional information that may help us both out.
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Post Fiend
Joined: Feb 2007
Posts: 14,541
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From: Dallas-Ft. Worth
Mine is a few degrees off my Scangauge as well. But not 40 deg... The higher temp sounds about right for stock cooling, so I'd believe that one if you don't have a larger cooler installed. With my 6.0L cooler, my temps run around 140 unloaded in the summer.
Senior User
Joined: Jul 2009
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From: Trona, CA
Sorry to barge in, but do these trannies really run 190 when just cruising unloaded on the freeway? My ScanGauge usually reads in the region of 150-160 @ 55MPH unloaded, slight uphill...just wanted to know if that's correct or if I should mentally have some correction factor for it (ie. +30F on the gauge for actual temp)
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Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 27
From: Mesa AZ
Sorry to barge in, but do these trannies really run 190 when just cruising unloaded on the freeway? My ScanGauge usually reads in the region of 150-160 @ 55MPH unloaded, slight uphill...just wanted to know if that's correct or if I should mentally have some correction factor for it (ie. +30F on the gauge for actual temp)
Only time I saw 190 was when I pulled 16,500 lbs up a steep mountain grade when it was 110 degrees outside. (actually went a little bit past 190 if I remember correctly...)
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Senior User
Joined: Mar 2009
Posts: 354
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From: Patterson, Ca.
Sorry to barge in, but do these trannies really run 190 when just cruising unloaded on the freeway? My ScanGauge usually reads in the region of 150-160 @ 55MPH unloaded, slight uphill...just wanted to know if that's correct or if I should mentally have some correction factor for it (ie. +30F on the gauge for actual temp)
Post Fiend
Joined: Feb 2007
Posts: 14,541
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From: Dallas-Ft. Worth
Yes, 190ish empty on stock cooling is "normal". Here's what mine ran in ~95F ambient temps after 30 miles:
Here is the temp with the 6.0L cooler after the exact same drive, in about the same 95 deg ambient temps:
EDIT: My ScanGauge is within 10 deg of my analog gauge, BTW...
EDIT2: 90-100 deg over ambient temps are considered "normal" on stock cooling. I run about 40-50 over ambient empty now, and towing moderate weight in 100+ deg Texas heat, it was about 180.
Here is the temp with the 6.0L cooler after the exact same drive, in about the same 95 deg ambient temps:
EDIT: My ScanGauge is within 10 deg of my analog gauge, BTW...
EDIT2: 90-100 deg over ambient temps are considered "normal" on stock cooling. I run about 40-50 over ambient empty now, and towing moderate weight in 100+ deg Texas heat, it was about 180.
Senior User
Joined: Jul 2009
Posts: 211
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From: Trona, CA
Yes, 190ish empty on stock cooling is "normal". Here's what mine ran in ~95F ambient temps after 30 miles:
EDIT: My ScanGauge is within 10 deg of my analog gauge, BTW...
EDIT2: 90-100 deg over ambient temps are considered "normal" on stock cooling. I run about 40-50 over ambient empty now, and towing moderate weight in 100+ deg Texas heat, it was about 180.
EDIT: My ScanGauge is within 10 deg of my analog gauge, BTW...
EDIT2: 90-100 deg over ambient temps are considered "normal" on stock cooling. I run about 40-50 over ambient empty now, and towing moderate weight in 100+ deg Texas heat, it was about 180.
