5L4-ACT-VL 5L40E Actuator Feed Limit Valve Repair
Instruction Manual
THM 5L40E
5L4-ACT-VL 5L40E Actuator Feed Limit Valve Repair
Cadillac 03-06 CTS, 04-06 SRX, 05-06 STS, 04-06 XLR
BMW 01-05 325i, 01-05 330i, 01-03 525i, 01-03 530i
Your fixing Ratio codes PO731, PO732, PO733, PO734, PO735
When the feed limit valve bore wears, a loss in a pressure rise and shift solenoid oil will follow causing the above codes and friction burn-up.
With slight wear at this area, PO735 ratio error 5th gear is common when hot. If the fluid is clean, consider fixing VB in the car.
Step 1. Remove and discard the original Feed Limit Valve and Spring.
5L4-ACT-VL5
Refill Fixes 5 Transmissions
Step 2. Hold VB down flat on the bench as shown, with a 3/8 drill (cordless works great) AND OIL, guide reamer into the spring pocket area. Begin light cutting on the outer bore (.001). This will become the guide for the actual valve area where the cutting gets heavier. Clean VB. Install NEW valve making sure valve slides freely in the bore before assembly. Never use Ream dry!
Step 3. Install new Valve, Orange, Red, and White springs.
You just fixed it, Gil
5L40E: No Move Hot, Oil Out Vent, Drain Back, Pressure Regulator Bore Wear Out.
Fix it better than new without reaming.
Forward & Coast clutch piston seal protectors
Seal protectors needed
Direct J-45133
OD J-45135
Low/Rev J-45140 & J-45136
2nd J-46240
2nd coast J-46239
99-02 BMW had different diameters Low/Rev & 2nd pistons at this time no seal protectors are available.
Check bore for wear. Place the valve where the two skinny lands line up at the arrow and wiggle valve. If wear is bad enough to catch the valve, it will stick in use causing no movement.
The new PR valve has repositioned lands and an internal exhaust circuit so both ends of the valve will be supported at all times.
New Valve is fixed even with substantial bore wear!
To Install. Remove and discard the original PR valve and innerspring.
Place new PR valve in bore and stroke in and out. If you can feel it catch on a ridge just tap it gently side to side till it’s free. Assemble New PR Valve, Spring Seat, and New ORANGE inner spring as shown.
© TransGo 2007
04/26/07
