Testing Line Pressure TH-350

[brian schuetta]

Where is the port to test line pressure on a TH-350? With my car in low gear it will move forward 15 ft., then when I stop it won't move again. The engine just revs but the car doesn't move. Went through the shifter adjustment and the fluid doesn't smell or look burnt. Thanks.

[Dave1695]

Right side of case (passenger side), near tail housing; there is a hex head 1/4 npt plug.

[Mark Yacavone]

Originally Posted by Dave1695

Right side of case (passenger side), near tail housing; there is a hex head 1/4 npt plug.

Yes..rear most port, except it is 1/8 npt

[brian schuetta]

Between the modulator and the servo?

[Mark Yacavone]

Originally Posted by brian schuetta

Between the modulator and the servo?

Right side of TH350 case.

Rear port is main line pressure. You will see pressure here in all gears for most valve body configurations. Some race-only valve bodies may not have pressure at this port or the others
Middle port is 2nd gear pressure
Front port is third gear pressure

[Eman]

http://www.crankshaftcoalition.com/w...0_rebuild_tech
Scroll down for pic of the ports.

[1720]

Right side of TH350 case. Pressure ports are circled.

• Rear port (yellow) is main line pressure. You will see pressure here in all gears for most valve body configurations. Some race-only valve bodies may not have pressure at this port or the others
• Middle port (red) is 2nd gear pressure
• Front port (blue) is third gear pressure

TH350 pressure ports circled