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Discussion Starter · #1 ·
Hey guys I just got done installing a trailblazer tc and superior shift kit and billet servo's.....but anyways i have a autometer cobalt tranny gauge and i have the sending unit in the test port on the side of the tranny..its not very accurate on reading temps...im wondering were else i could put it to be more accurate..ive been told a pan but i want to keep my stock one and its impossible to weld a bung on that thin thing....Any suggestions?
 

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HOT AIR BALLOON OWNER
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Well, you know that port is for testing LINE PRESSURE not ATF temps right?

I'd just weld a bung in the pan or get an aftermarket pan as said
 

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Discussion Starter · #4 ·
The reason i say its not accurate is becasue i can run the truck for like 20 min and still wont raise the needle....long trips ive took it would evently start to work....and for the test port i know is line pressure just whats the difference between a plug in there or sensor.. with doing that i was going to read case temp rather than fluid temp...figured if case gets hot things are frying....
 

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The reason i say its not accurate is becasue i can run the truck for like 20 min and still wont raise the needle....long trips ive took it would evently start to work....and for the test port i know is line pressure just whats the difference between a plug in there or sensor.. with doing that i was going to read case temp rather than fluid temp...figured if case gets hot things are frying....
???? Try structuring a few seperate sentences there bro:D
 

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The reason i say its not accurate is becasue i can run the truck for like 20 min and still wont raise the needle....long trips ive took it would evently start to work....and for the test port i know is line pressure just whats the difference between a plug in there or sensor.. with doing that i was going to read case temp rather than fluid temp...figured if case gets hot things are frying....
Sounds normal, you're in Michigan and it's still pretty cold there. If you don't do a lot of stop-and-start driving it takes awhile for the trans to heat up. I have my sender in the test port and it works fine like that. I also have a scan gauge that reads trans temp from the PCM and it's pretty damn close, I'd say within 5-10*.
 

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my dad has a factory tranny temp in his escalade and if you just start the truck and beat on it for a min or 2 the temp goes up real quick...but if you start up and just drive normal the temp wont go up for about 20 mins like you said then it might go up a little...and on the highway it goes ALL the way down if just cruising...
 

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Mayhem, Like Me
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even with a 3600 stall and a pretty decent amount oh hp, mine doesnt get above 130 on the Hwy... yours sounds normal to me. the test port is plenty accurate
 

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even with a 3600 stall and a pretty decent amount oh hp, mine doesnt get above 130 on the Hwy... yours sounds normal to me. the test port is plenty accurate
sorry for jacking your thread but how does your truck drive with a 3600 stall silvermodo? is it your DD? ive heard even a 3200 stall will be very annoying for a DD...
 
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