A/T - 4T65E, Delayed Shifts/Flares/Extended Shifts
File In Section: 07 Transmission TransaxleBulletin No.: 01-07-30-014
Date: April, 2001
TECHNICAL
Subject:
4T65-E Transmission Delayed Shifts, Slips, Flares or Extended Shifts During Cold Operation (Replace Shift Solenoid Valve Assembly)
Models:
2001 Buick Century, LeSabre, Park Avenue, Regal
2001 Chevrolet Impala, Lumina, Monte Carlo, Venture
2001 Oldsmobile Aurora, Intrigue, Silhouette
2001 Pontiac Aztek, Bonneville, Grand Prix, Montana
with 4T65-E Automatic Transmission (RP0s MN3, MN7, M76, M15)
Condition
Some owners may comment on one or several delayed shifts, slips, flares or extended shifts during cold operation. These symptoms can affect the 1-2 shift only. The transmission won't shift out of 1st gear until the temperature is high enough to unstick the solenoid. This condition can last up to several shift patterns. These symptoms can return after the vehicle sits, usually 6 hours or more.
Cause
The 1-2, 3-4 shift solenoid valve not exhausting may be the cause of these conditions.
Correction
Replace the 1-2, 3-4 shift solenoid valve. Refer to the appropriate Service Manual information for replacement procedure.
Parts Information
Part Number Description Qty
24219819 1-2, 3-4 Shift 1
Solenoid
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Description Labor Time
Operation
K6555 1-2 Shift Use Published
Solenoid Labor Time
DISCLAIMER