Harsh, Soft, Delayed Or Slipping First, Third, Fifth, Sixth Or Seventh Shift

WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.

Checks	Causes
1-3-5-6-7 Clutch Assembly (57)	Inspect for damaged or worn 1-3-5-6-7 clutch plates (511 - 512). Inspect for damaged 1-3-5-6-7 clutch piston (509), clutch housing (506), return spring (515), and piston dam (516). Inspect for damaged 1-3-5-6-7 clutch piston dam retaining ring (517). Inspect for cut, worn or damaged 1-3-5-6-7 clutch piston seals (507, 508), and dam seal (510). Inspect for improper selective 1-3-5-6-7 clutch backing plate retaining ring (514). Inspect for damaged 1-3-5-6-7 clutch backing plate (513). Inspect for worn splines on backing plate.

Checks

Causes

1-3-5-6-7 Clutch Assembly (57)

Inspect for damaged or worn 1-3-5-6-7 clutch plates (511 - 512).
Inspect for damaged 1-3-5-6-7 clutch piston (509), clutch housing (506), return spring (515), and piston dam (516).
Inspect for damaged 1-3-5-6-7 clutch piston dam retaining ring (517).
Inspect for cut, worn or damaged 1-3-5-6-7 clutch piston seals (507, 508), and dam seal (510).
Inspect for improper selective 1-3-5-6-7 clutch backing plate retaining ring (514).
Inspect for damaged 1-3-5-6-7 clutch backing plate (513). Inspect for worn splines on backing plate.