Restore Your Van’s Drivability and Ditch the Dealership Hassle
If your 2006-2014 GMC Savana 2500 Van is suffering from erratic shifting, getting stuck in gear, or has the check engine light illuminated, a failing Transmission Control Module (TCM) is the likely culprit. As a workhorse vehicle, any downtime is costly. This replacement T42 TCM, part number 24234274, is the definitive, reliable solution to get your van back in service quickly. It arrives pre-programmed to your vehicle’s specific VIN, eliminating the need for expensive dealership programming and ensuring a seamless, plug-and-play installation.
The TCM is the brain of your automatic transmission, managing everything from shift points and line pressure to torque converter lockup. When it fails, it can cause a cascade of problems that mimic a catastrophic transmission failure. By replacing your faulty module with this quality-tested unit, you restore precise electronic control, ensuring smoother gear changes, improved fuel economy, and the dependable performance your business relies on. This is the ideal fix for any professional mechanic or DIYer looking to solve transmission issues on a 2006-2014 Savana 2500 TCM without complication.
Case Study: A Tricky Diagnosis
A local contractor brought in his 2011 Savana 2500. It was stuck in limp mode (3rd gear only) and had a P0700 code. His previous mechanic wanted to replace the entire transmission for thousands. In my shop, I’ve seen this hundreds of times. A quick scan confirmed communication errors with the TCM. Instead of a costly transmission rebuild, we installed one of our VIN-programmed T42 modules. In under an hour, the van was shifting perfectly, all codes were cleared, and the customer saved a fortune. This isn’t just a part; it’s a diagnostic solution that prevents unnecessary, expensive repairs.
Is Your Savana Van Exhibiting These Transmission Issues?
- ✔️ Harsh, slamming, or delayed gear engagement.
- ✔️ Vehicle is stuck in “limp mode” and will not shift out of 2nd or 3rd gear.
- ✔️ Check Engine Light or Transmission Warning Light is on.
- ✔️ Diagnostic Trouble Codes (DTCs) are present, such as P0700, P0750, P0755, or other solenoid-related faults.
- ✔️ Inability to upshift or downshift properly, leading to poor acceleration.
- ✔️ A sudden drop in fuel efficiency or signs of the transmission overheating.
- ✔️ Complete loss of communication with the transmission module.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and help reset the system.
- ✔ Locate the Module: On your Savana Van, the TCM is typically found in the engine compartment on the right-hand (passenger) side.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old TCM. Then, unbolt the module from its mounting bracket.
- ✔ Install the New Module: Mount the new, pre-programmed TCM in the same location and securely reconnect the electrical harnesses.
- ✔ Final Steps: Reconnect the battery terminal. While the module is plug-and-play, it’s best practice to use a basic OBD2 scan tool to clear any stored fault codes from the vehicle’s memory. Start the engine and test drive to confirm smooth shifting.
Verified Fitment Across the GM Lineup
While this is the perfect solution for a 2006-2014 Savana 2500 TCM, this module is also compatible with a wide range of other GM vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L80E. It directly interchanges with part numbers 24252114, 24234503, 24230461, and more. Please verify your vehicle in the list below:
- Chevrolet: Avalanche 1500 (07-08), Cobalt (06-10), Colorado (08-12), Express 1500/2500/3500 Van (06-14), HHR (06-11), Impala (06-11), Monte Carlo (06-07), Silverado 1500/2500 (07-13), SSR (05-06), Tahoe (07-09), Trailblazer (06-09)
- GMC: Canyon (08-12), Envoy / Envoy XL (06-09), Savana 1500/2500/3500 Van (06-14), Sierra 1500/2500 (07-13), Yukon / Yukon XL 1500 (07-09)
- Buick: Allure (06-09), LaCrosse (06-09), Lucerne (06-11), Rainier (06-07), Rendezvous (06-07)
- Pontiac: G5 (07-10), G6 (06-10), Grand Prix (06-08), Pursuit (06)
- Cadillac: DTS (06-11)
- Saturn: Aura (07-09), Ion (06-07), Vue (07-10)
- Hummer: H3 (08-10)
- Saab: 9-7X (06-09)
What does ‘VIN Programmed’ mean for me?
What does ‘VIN Programmed’ mean for me?
It means we load your vehicle’s unique Vehicle Identification Number (VIN) and the latest GM software onto the module before we ship it. This ensures it communicates perfectly with your van’s engine computer and other systems right out of the box, eliminating the need for a trip to the dealer for expensive programming.
Do I need any special tools for this installation?
No special tools are required. Basic hand tools, such as a socket set to remove the module’s mounting bolts and disconnect the battery, are all you need. A standard OBD2 scanner is recommended to clear any old codes after installation, but is not strictly necessary for the module to function.
Will this fix a P0700 trouble code?
Yes. The P0700 code is a general fault code indicating the TCM has detected a problem. In many cases, replacing a faulty TCM with this pre-programmed unit will resolve the underlying issue causing the P0700 code and other related transmission codes.
Is there a core charge for my old part?
No, there is absolutely no core charge. You can keep your old part or dispose of it at your convenience without the hassle of returning it.