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Trans Temp Gauge Install - HELP

Posted: Sat Jun 21, 2014 8:41 pm
by jhg120
I installed a Autometer 5757 trans temp gauge with short sender. The normal sender will not fit because it hits metal inside the trans pan. I used teflon tape to seal the sender, which I guess can sometimes cause ground issues???

The sender is supposed to ground itself. So maybe teflon is issue.

Anyways, I then connect hot 12v wire to switched cigarette lighter 12v.

I then connect ground wire to ground wire of cigarette lighter...is that ok??

The gauge will cycle through but instantly goes to 250F and stays there.

Do I need to run a dedicated ground from gauge??? I daisy chained into other ground wire and think that was bad idea.

Opinions???

I've read that if gauge pegs to 250F it's a ground issue. I'll post pics or gauge installed, but would like gauge to actually work too!!!

Thanks all.

Posted: Sat Jun 21, 2014 8:57 pm
by jhg120
Image



It's 11:50 PM, 71F outside, and now it's reading 210F and it was climbing. No way it could be that hot.

BTW, the sender is in the trans test port.

Posted: Sun Jun 22, 2014 7:57 am
by smj999smj
Just run the ground to the chassis. You can put an eyelet connector on the end of the wire and just place one of the radio mounting screws through it.

Posted: Sun Jun 22, 2014 10:20 am
by jhg120
It was the ground from the gauge. Stupid me. Soon as I changed it all works fine. Hasn't gone over 155f with hard accels too. Thx

Posted: Sun Jun 22, 2014 12:41 pm
by Kestral
That looks great I am thinking about one myself.