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4l80e transmission

teamjnz

By teamjnz
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teamjnz Enthusiast

teamjnz

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I recently installed some gauges to my 99' Suburban 6.5TD and one of them was a trans temp gauge. There are 2 lines on the passanger side of the transmission, 4L80e. One is closer to the bell housing and one is near the tail of the tranny. I was told the line near the rear is the line that goes from the tranny to the cooler. This is the line I installed my temp probe to read from. More recently I was told this is the return line from the cooler.

 

What line do I have the temp probe installed? :bs:

 

Thanks

Gonzo1970 Enthusiast

Gonzo1970

Posted
Posted
I recently installed some gauges to my 99' Suburban 6.5TD and one of them was a trans temp gauge.  There are 2 lines on the passanger side of the transmission, 4L80e.  One is closer to the bell housing and one is near the tail of the tranny.  I was told the line near the rear is the line that goes from the tranny to the cooler.  This is the line I installed my temp probe to read from.  More recently I was told this is the return line from the cooler.

 

What line do I have the temp probe installed?  :bs:

 

Thanks

 

 

 

 

If memory serves, the "Front" line (meaning towards the front of the vehicle) is the "Return from Cooler" line... so for a trans temp, you would hook the gauge up to the Rear line (Trans to cooler).

 

Now, dont hold me to this, but I also have Logic backing this up.. cool fluid front to back flow.. Makes complete sense to me, but hey... Doesnt mean some braniac engineer defeated the gravity thing, ya kno? :flag:

 

-Gonz

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