Auto Trans Temp Gauge install using IPT block / NAPA parts

[HighPsi92GST]

I bought the trans temp gauge block from IPT, I read the best place to install it is in the return line. The car is a 95tsi, it has an external cooler over in the driver side near the wheel well, as well as the one in the radiator. Question is, basically, which is the return line? Does the oil from the trans go through the radiator cooler or the external cooler first? This is my first automatic car so not too familiar with the lines for it.

Thanks in advance

[snyper1982]

I would imagine it would go like this Trans>radiator cooler>external cooler>back to trans.

[Lee'sGSX]

The return line is the line that comes out of the tranny that is closest to the firewall. just cut the line and install your block there.

[booosting92tsi]

is this install for an electric or mechanical gauge? how do u connect your electrical sender to the flex hose?

[Car Cannibal]

Couldn't find any posts about it so here's one for those looking for a quick and effective way to read your trans temps. The fitting nearest the firewall on the transmission is the return line, most trans shops recommend tapping into this hose.

Napa has the fittings you need, here is a run down...

1) 1/8 Pipe Female to 1/4 Pipe Male, Sensor goes in this fitting and is raised enough to not block fluid flow.
NAPA Online PartsPRO SE

1) 1/4 Pipe Brass Block Tee
NAPA Online PartsPRO SE

2) 3/8th Tube Fittings
NAPA Online PartsPRO SE

Teflon Tape

Autometer Tranmission Temp Sensor

Remember to ground the brass tee, I tightened a hose clamp around the tee and smashed the exposed end of a wire in it while securing the ring end to a ground screw on the fender.

Hope this saves hours off your life.

[Defiant]

Originally Posted by Car Cannibal

Teflon Tape

Do not use toilet tape on cars. Use automotive sealants, such as Permatex or Gas-ka-Cinch.

[Car Cannibal]

Teflon Tape is appropriate on all Plumbing and Tapered threads, like those found on the Napa parts mentioned above. While Pipe Dope is great, it's a bitch to loosen where Teflon Tape aids in compression making for a tighter seal.