Restore Peak Transmission Performance in Your GMC Savana
Is your 2006-2014 GMC Savana 3500 experiencing frustrating transmission problems like harsh shifting, getting stuck in gear, or an illuminated check engine light? These are classic signs of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for orchestrating every gear change and ensuring smooth, efficient operation. When it fails, it can disrupt your vehicle’s drivability and leave you stranded. This genuine GM T42 Transmission Control Module, service number 24234274, is the definitive solution, pre-programmed to your vehicle’s specific VIN for a seamless, plug-and-play installation.
From the Diagnostic Bay
We had a 2011 Savana 3500 work van come in that was stuck in third gear—a classic limp mode symptom. The owner had already replaced two shift solenoids based on the codes (P0753, P0758), but the problem persisted. A quick scan with a professional tool showed communication errors with the TCM. Instead of continuing to replace internal parts, we installed a VIN-programmed T42 module. After a 20-minute installation and clearing the codes, the van was shifting perfectly. It’s a common scenario: the diagnostic trouble codes often point to solenoids, but the root cause is frequently the module that controls them.
Identifying a Faulty 2006-2014 Savana 3500 TCM
A failing TCM can manifest in various ways, often mimicking internal transmission failure. Before considering a costly transmission rebuild, it’s crucial to evaluate the control module. This component manages everything from shift timing to torque converter lockup, and its failure can have wide-ranging effects on your vehicle’s performance and fuel economy. Replacing a faulty module with our pre-programmed unit restores the precise electronic control your transmission needs to function as designed by the factory.
Common Symptoms and Key Features
- ✔ Erratic Shifting: Resolves issues like hard shifts, delayed gear engagement, or slipping between gears.
- ✔ Limp Mode Correction: Fixes the common problem where the vehicle is stuck in a single gear (usually 2nd or 3rd) to protect the transmission.
- ✔ Warning Light Resolution: Clears persistent Check Engine and Transmission warning lights triggered by codes like P0700, P0750, and other solenoid-related faults.
- ✔ Restored Drivability: Eliminates issues such as no upshifting or downshifting, leading to improved fuel efficiency and preventing transmission overheating.
- ✔ Plug-and-Play Installation: Arrives pre-programmed to your vehicle’s VIN. This eliminates the need for expensive dealership programming or specialized tools.
- ✔ OEM-Standard Quality: Built to meet or exceed original equipment specifications for lasting durability and reliable performance, backed by a one-year warranty.
- ✔ Broad Compatibility: Direct replacement for a wide range of part numbers including 24252114, 24234503, 24230461, and more, ensuring a perfect fit for your specific application.
Installation and Fitment
Installing your new 2006-2014 Savana 3500 TCM is a straightforward process. On most Savana and Express vans, the module is located in the engine compartment on the right-hand side. The process typically takes less than 30 minutes. For safety, always disconnect the battery before beginning the installation. Once the new module is connected, reconnect the battery. While the module is plug-and-play, it’s good practice to use a scan tool to clear any stored diagnostic trouble codes from the vehicle’s memory. This quality-tested part requires no core charge, allowing you to complete your repair without the hassle of returning the old unit.
This T42 TCM is the ideal solution for a vast array of GM vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, 4L70E, and 4L80E. Don’t let a faulty module compromise your vehicle’s reliability. Order today and restore the smooth, dependable performance you expect from your GM truck or van.
Frequently Asked Questions
What does “VIN Programmed” mean?
It means we load your vehicle’s unique 17-digit Vehicle Identification Number (VIN) onto the module before shipping. This ensures the TCM has the correct software and calibration for your specific engine, transmission, and options, making it a true plug-and-play part without needing a trip to the dealer.
Will this fix a P0700 trouble code?
A P0700 code is a general transmission fault request from the TCM to the Engine Control Module (ECM) to turn on the check engine light. While the P0700 itself doesn’t pinpoint the problem, it’s very often triggered by an internal TCM failure. Replacing a faulty TCM is a common and effective way to resolve this and other related transmission codes.
Where is the TCM located on my 2012 Savana 3500?
For the 2006-2014 GMC Savana and Chevrolet Express vans, the Transmission Control Module is typically found in the engine bay, mounted on the right-hand (passenger) side.
Is any special tool required for installation?
No special tools are required. Basic hand tools to access and unbolt the module, such as a socket set, are all that’s needed. The electrical connectors have simple release tabs. The most important step is disconnecting the battery before you start.
Do I need to return my old TCM?
No, there is no core charge for this part. You can keep, discard, or recycle your old module without any additional cost or hassle.