- December 3: GM Truck Tailgate Recall Involves 150,000 HD Trucks recalls | 9 days ago
- November 17: Chevy Express and GMC Savana Vans Recalled For Multiple Issues recalls | 25 days ago
- November 13: GM Recalls 514,000 Vehicles After Rear Wheels Lock-Up recalls | 29 days ago
- October 26: Recall: 2024 GMC Canyon Headlights Flicker recalls | 47 days ago
- October 12: GM Vortec Oil Consumption Lawsuit Dismissed news | 61 days ago
GMC TSB #PIP4112P
2009 GMC Sierra 2500
TSB Document:
Affected Component: POWER TRAIN
- Summary
- This Preliminary Information communication provides information to the technician of a complaint of a sag or hesitation when accelerating. The concern is present when coasting at low speeds of less than 15 miles per hour and then aggressively applying the throttle, or after making a hard stop followed by an aggressive throttle. This is considered normal operation of the vehicle the throttle is delayed and opened slowly up to .7 seconds to help minimize driveline lash and clunking or will have approximately .5 seconds of zero torque to allow the transmission to shift to first gear.
Click a tab for more information.