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Old 05-13-2010, 07:47 AM
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Default trans temp gauge

just got a cobalt electrical gauge...if i wanted to install the sending unit on the pan, do i need to buy anything extra or is everything included with the gauge to do this?? also where would i have to drill on the pan to get it installed?

thanks for any advise...

and if you know how to wire it send me a pm i would hate to mess this up..
Old 05-13-2010, 08:08 AM
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You need to pull the pan to install this properly. If your sending unit is a 1/8 NPT, then you will need a 1/8 NPT weldable bung to weld to the pan. Get the bung, take the pan off, drill a properly sized hole, and shoot to a muffler shop and have them seal the bung in place if you dont have access to a welder.
Old 05-13-2010, 08:21 AM
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sure is a 1/8 ntp.. any idea how much fluid i will lose??? wheres a good place tro buy the bung?? and a gaket assuming i need to replace it for the pan?? local or internet only??

thanks

any wiring tips
Old 05-13-2010, 09:11 AM
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the wiring is easy. You tap into the power wire for the lights behind the fuse to light up the gauge and then find a good ground. Idk if you mean the whole gauge is eletric but my trans gauge i put in my car there was only one wire that went from the sending unit to the back of the gauge and i was done.

Gaskets yu can get from any where made it prefer gm gaskets but off the internet is fine too. Good luck steve
Old 05-13-2010, 09:12 AM
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And if yer gonna drop the pan & add the new gasket, ya might as well replace the filter while yer in there.

Search Transmission temp gauge info & ya may find where people have installed in the lines also. But it's not a good true system reading tho.

Best place is in the pan on the drivers side I believe, away from the return line flow. Return line flow would/should be a lower temp than the system since it's just coming back from the heat-exchanger/cooler.
Old 05-13-2010, 09:37 AM
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I just get the auto parts filter/gasket combo for about $15. I personally bought my 1/8 bung from summit but feel I overpaid for one little bung. Here's one for about $7 on ebay

http://cgi.ebay.com/ebaymotors/1-8-N...Q5fCarQ5fParts
Old 05-13-2010, 11:02 AM
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Originally Posted by Z28SteveA4
the wiring is easy. You tap into the power wire for the lights behind the fuse to light up the gauge and then find a good ground. Idk if you mean the whole gauge is eletric but my trans gauge i put in my car there was only one wire that went from the sending unit to the back of the gauge and i was done.

Gaskets yu can get from any where made it prefer gm gaskets but off the internet is fine too. Good luck steve
this is the one i have

http://www.summitracing.com/parts/ATM-6157/All/

its got 2 wires from the sending unit and a black, white and red one. so just splice into a wire for power, light and find a ground??
Old 05-13-2010, 01:54 PM
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Originally Posted by z28_n_tx
this is the one i have

http://www.summitracing.com/parts/ATM-6157/All/

its got 2 wires from the sending unit and a black, white and red one. so just splice into a wire for power, light and find a ground??
You got it

red - power
white - light
black - ground
Old 05-15-2010, 07:47 AM
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Originally Posted by Z28/2002
You got it

red - power
white - light
black - ground
just wondering if a fuse is needed? the instrucsions say it recomends it...or am i ok without it??




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