Proud Veteran Owned Business Member!

Frequently Asked Questions

Transmission Lookup


Springs, Shift Valve,1-2 & 2-3, 4L80E, GM

<< Previous in Valve Bodies, Valve Components Next in Valve Bodies, Valve Components >>
34994-02KS34741S-3Springs, Shift Valve,1-2 & 2-3, 4L80E, GM
Price: $14.18
Part Number: TAT-34994-02K-SX

Springs, Shift Valve,1-2 & 2-3, 4L80E, GM

In 4th gear, signal A oil force must overpower the 1-2 shift valve spring and opposing signal B pressure in 4L80-E transmissions. If the 1-2 shift valve does not remain fully stroked, drive oil to second and direct will be cut off or go to exhaust. The reaction area of A is greater than that of B, so the spring is the stroking factor. Complaints of second gear starts, neutral after 2-3 shift or no 4th gear are compounded by worn AFL limit bores, leaking o-rings and solenoids. When AFL oil drops, and signal A becomes less than 58 psi, the 1-2 valve will stall or float. This 3-1 or complaint of 3rd neutral will occur in OD or D with scanner indication of 4th commanded.This new spring kit 34994-02K replaces the original 1-2 shift valve spring and 2-3 shift valve spring.

Features & Benefits

Set allows salvage of stripped cores.
Restores signal pressure to shift solenoids.
Improves shift.

Product Reviews

(0 Ratings, 0 Reviews)
Click Manufacture Category below for better navigation
WE HAVE HUNDREDS OF PARTS NOT LISTED!! If you cannot find the part you are looking for give us a call @ 1-877-406-0617 and we will be glad to help. Monday - Friday 8am - 5pm CST
Browse Categories
Shopping Cart
Your cart is empty.

Our Builders Recommend: