Low transmission line pressure, won't go above 150psi!

D

DieseLife

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Jun 27, 2013
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I have the trod-3 full manual vb kit installed in a 47re vb in my 48re transmission. The kit came with a blue spring that replaces the OEM spring behind the line pressure Allen head. The new blue spring was definitely stiffer. However in 1st, 2nd, 3rd, and OD I can only get 150 psi at the accumulator port, and with the torque converter locked in 2-4 gear I get a solid 175. This is with the pressure adjustment maxed out. I then shimmed the spring with two washers and I'm still getting the same pressure readings.

Where do I start here? I get the same exact pressure in every gear so I don't think it's a seal issue on any of the clutches.
 
I'm going to air test the rear(forward) clutch tomorrow to make sure it's not the seal leaking
 
Have you tested rear servo port for pump output?


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No and I knew better too, it's been one of those days. I'll go check real quick
 
Almost pegged out my 300 psi gauge in reverse. Showed 165 psi in 1st at idle too
 
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