Engine/Transmission (1998.5 - 2002) "CAUTION" transmission cooler line used for temp sending unit

[pwr2tow]

I have heard alot of people recommending the transmission line from a 1995 truck to use as a line for taking the transmission temperature.



Just wanted to make those who use it aware that there is a check valve in this line, there is also a check valve in the exchange cooler on the newer trucks. If you use this line you should take one of the check valves out, either the one in the line or the one in the exchange cooler.



Leaving both check valves in place causes too much of a flow restriction and transmission damage could result.



Those who have modified transmissions could benefit from removeing both check valves since most aftermarket valve bodies do not allow converter drain back. It is best to check with your after market parts supplier first before removeing both check valves just in case they do not incorporate anti-drain back into their product.

 

[dieselshu]

Ditto to Ron... and to add to it, Remove the one in the flex hose not the cooler unless you would like a mess of ATF on you. The check valve is located in the male fitting on the flex hose. There is a rubber ball and spring inside, a long flat tip screw driver works and a scribe, flashlight is also very helpful. Just insure there is no remaining parts & pieces still in the hose. Use caution around the male flare.









Dave

 

[klaybus]

Check Valve

Ditto to both. I know I've answered this thread more than once and in some of the posts I've mentioned removing the check valve ball. Make sure you remove it as stated above. I removed mine from the flex line at the pan.



Clay

 

[jjohannessen]

When i got my DTT, Bill gave me his special made braided line Talk about customer service His line has no check ball in it and is much stronger than that cheap one DC uses.

 

[klaybus]

TRANS LINE

When i got my DTT, Bill gave me his special made braided line Talk about customer service His line has no check ball in it and is much stronger than that cheap one DC uses.



Me Too, but before the DTT I installed the earlier mentioned line with the trans probe port.



Clay