Vehicles with GM 6L45, 6L50, 6L80 and 6L90 transmissions may have complaints of vibration, shudder or roughness, particularly while driving at low speeds with a steady throttle on a level road. This complaint may be more noticeable when driving up an incline. These symptoms can be caused by a broken TCC regulator valve spring in the lower valve body, which causes the TCC slip speed to drop to zero.
With a capable scan tool, monitor the TCC slip during steady throttle input. If the TCC slip remains a constant zero RPM during the shudder or vibration, check the lower valve body for a broken TCC regulator valve spring and replace as needed with Sonnax TCC regulator valve spring 104740-45K.

More From This Category

COMP Cams Valve Lock, Steel, 10 Degree, 3/8 in, 2 Groove, w/o Lash Cap Recess For Chrysler, Pair

COMP Cams Valve Lock, Steel, 10 Degree, 3/8 in, 2 Groove, w/o Lash Cap Recess For Chrysler, Pair

$6.10

MANLEY Valve Lock, Super 7 Degree Captiv Loc, Bead Loc, Steel, +.050 .3110 in. Stem, Each

MANLEY Valve Lock, Super 7 Degree Captiv Loc, Bead Loc, Steel, +.050 .3110 in. Stem, Each

$20.59

MANLEY Valve Spring Retainer, Titanium, 7 Degree, Std Height, 1.020/1.030 in. OD, Set of 16

MANLEY Valve Spring Retainer, Titanium, 7 Degree, Std Height, 1.020/1.030 in. OD, Set of 16

$560.70

MANLEY Valve Spring Retainer, Titanium, Super 7 Degree, 1.660 in. OD, Lightweight, Triple, Each

MANLEY Valve Spring Retainer, Titanium, Super 7 Degree, 1.660 in. OD, Lightweight, Triple, Each

$58.39

Crow Cams Valve Stem Seals Ford 11/32" Viton Umbrella

Crow Cams Valve Stem Seals Ford 11/32" Viton Umbrella

$60.35

Crow Cams Valve Stem Seal Hemi 6.4 Set

Crow Cams Valve Stem Seal Hemi 6.4 Set

$38.98