Is Your GMC Savana 2500 Shifting Erratically or Stuck in Limp Mode?
As a seasoned technician with over two decades in the bay, I know that for a workhorse like the 2006-2014 GMC Savana 2500, transmission trouble means lost time and money. When your van starts slamming into gear, refusing to shift, or throws a Check Engine light with codes like P0700, the culprit is often not the transmission itself, but its electronic brain: the T42 Transmission Control Module (TCM).
From the Shop Floor: A Real-World Diagnosis
“A customer’s 2011 Savana 2500 came in last week with exactly these symptomsโharsh 1-2 shift and getting stuck in 3rd gear. Another shop had quoted him over $3,000 for a transmission rebuild. After a quick scan, I saw classic solenoid circuit codes. Instead of jumping to conclusions, I checked the TCM connectors and wiring. Everything looked fine. The issue was internal to the module. We swapped in one of our VIN-programmed T42 TCMs, and in under an hour, the van was shifting like new. He saved thousands and was back on the road the same day. This is a fix I’ve performed hundreds of times on these GM work vans.”
The Direct Solution: A VIN-Programmed Replacement
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take this high-quality T42 TCM, compatible with part number 24235732, and pre-program it to your van’s specific Vehicle Identification Number (VIN). This critical step ensures the module communicates perfectly with your vehicle’s engine computer and other systems, eliminating the need for an expensive trip to the dealership for programming.
Key Symptoms This Part Resolves:
- โ Harsh, delayed, or unpredictable gear shifts.
- โ Vehicle stuck in a single gear (limp mode), often 2nd or 3rd.
- โ Active Check Engine Light or Transmission Warning Light.
- โ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults.
- โ Complete loss of communication with the transmission module.
- โ Poor fuel economy and sluggish performance directly tied to shifting problems.
Plug-and-Play Installation: No Dealer Visit Required
You can get your Savana back in service quickly. Installation is straightforward and typically takes less than 30 minutes with basic hand tools.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and help reset the vehicle’s electronic systems.
- Locate the TCM: On your 2006-2014 Savana 2500, the TCM is located in the engine compartment on the right-hand (passenger) side.
- Disconnect and Remove: Carefully unplug the electrical connectors. Be gentle with the locking tabs. Then, unbolt the old module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place and securely reconnect the electrical harnesses. You should hear a click as they lock in.
- Reconnect and Verify: Reconnect the battery terminal. Start the vehicle and allow it to idle for a few minutes. Take it for a test drive to confirm that shifting has returned to normal. Clearing any stored codes with a basic scan tool is recommended.
Why Choose Our Savana 2500 Transmission Module?
- Guaranteed Compatibility: VIN-programming ensures this module works seamlessly with your Savana’s 4L80E or other compatible 4-speed automatic transmission.
- OEM-Standard Quality: Built to meet or exceed original equipment specifications for reliability and longevity, backed by a one-year warranty.
- No Core Charge: Keep your old part. There’s no need to worry about the cost or hassle of returning a core.
- Broad Interchangeability: This T42 module also replaces other common service numbers, including 24252114, 24234503, 24242391, and more, making it a versatile solution for a wide range of GM vehicles.
Don’t let a faulty TCM sideline your work vehicle. Order this pre-programmed T42 Transmission Control Module today and restore the dependable performance your 2006-2014 GMC Savana 2500 was built for.