tranny temps
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Senior User
Joined: Oct 2007
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From: Howard City, Mi
tranny temps
I have an autometer trans temp gauge in my 99 SD. The thing never moves! Does anybody know how to diagnose these things-gauge,maybe sending unit?What does the sending unit send to the gauge so I can check it.
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From: Stephensville WI
It's the design, every Super Duty works this way. The factory meter and sender doesn't move until it's too late to do anything. In other words, if the trans temp gauge moves up your transmission is already too hot.
If you want to rectify this, install an aftermarket sender with your temp meter.
If you want to rectify this, install an aftermarket sender with your temp meter.
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I put a set of Auto meter gauges in my 99.5 ford. The trans temp gauge I had came with a sending unit that screwed into the pass side of the transmission on the most forward port. It worked great for me. I'd check to see what kind of sending unit you have and where it's connected.
Darrell
Darrell
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From: Howard City, Mi
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From: Howard City, Mi
It is an Autometer. The sending unit is in front of the intercooler behind the grill hooked up to two rubber lines.
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Senior User
Joined: Oct 2007
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From: Howard City, Mi
tranny temp
I found out that the sender wasn't grounded! The gauge lights are grounded to the gauge ground also so when I turn the lights on the gauge goes directly to no reading ,way below 100 deg.
Thanks for all the help!
Rubidon
Thanks for all the help!
Rubidon
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From: Mount Airy, MD
I'd recommend relocating the sending unit to the pressure port on the drivers side of the tranny. The idea of having a tranny temp gauge is to get a reading of the fluid in the tranny, not on the return line. Sounds like the way yours is set up right now is getting a reading next to the tranny cooler which kind of defeats the purpose. You want to be able to monitor the fluid temp inside the tranny so the perfect place for the sending unit is the one I mentioned above.
Photos of trany temp sending unit installation
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From: Howard City, Mi
Originally Posted by kenneBF250V10
I'd recommend relocating the sending unit to the pressure port on the drivers side of the tranny. The idea of having a tranny temp gauge is to get a reading of the fluid in the tranny, not on the return line. Sounds like the way yours is set up right now is getting a reading next to the tranny cooler which kind of defeats the purpose. You want to be able to monitor the fluid temp inside the tranny so the perfect place for the sending unit is the one I mentioned above.
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Depending if you have a 7.3L or 6.0L they are both on the driver side above the pan. The 7.3L is hidden above the shift mechanism, while on the 6.0L its closer to the front of the tranny.
This may help:
http://www.dfuser.com/Install%20Guid...L%20Update.pdf
Bill
This may help:
http://www.dfuser.com/Install%20Guid...L%20Update.pdf
Bill