4T65E Transmission Delayed Shifts, Slips, Flares or Extended Shifts During Cold Operation (Replace Shift Solenoid Valve Assembly)
| 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 (RPOs 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 Solenoid | 1 |
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
K6555 | 1-2 Shift Solenoid | Use Published Labor Time |
