Restore Peak Performance to Your GM Vehicle’s Transmission
When your Chevrolet Express van or GMC Savana is your livelihood, you can’t afford downtime caused by a faulty transmission. Erratic shifting, getting stuck in ‘limp mode,’ or a persistent check engine light can bring your work to a grinding halt. This is the definitive solution: a high-quality, VIN-programmed T42 Transmission Control Module (TCM) designed to restore the crisp, reliable performance your vehicle had when it was new. By managing critical functions like gear changes and torque converter lockup, this module ensures your transmission operates smoothly and efficiently, getting you back on the road with confidence.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a failing TCM is the most likely culprit. This module is engineered to be the direct fix for these frustrating and potentially damaging problems:
- Harsh, delayed, or unpredictable gear shifts
- The vehicle is stuck in a single gear (limp mode)
- Illuminated Check Engine Light or Transmission Warning Light
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift properly
- A noticeable decrease in fuel economy
- Intermittent loss of communication with the transmission
Installing our Programmed T42 Transmission Control Module is the most effective way to resolve these issues permanently, avoiding the high costs and long waits associated with dealership repairs.
Features & Benefits
- ✔ Plug & Play Installation: This module arrives pre-programmed to your vehicle’s specific VIN. This critical step ensures perfect communication between the TCM and your vehicle’s other systems, eliminating the need for expensive dealership programming.
- ✔ Restored Drivability: End the headaches of rough shifting and unpredictable performance. This module restores the smooth, precise gear changes you depend on for a safe and comfortable ride.
- ✔ Built for Durability: Constructed to meet or exceed strict OEM specifications, this part is designed to withstand the demanding conditions of a work truck or daily driver, ensuring long-term reliability.
- ✔ Cost-Effective Repair: Save hundreds of dollars by avoiding dealership programming fees. This all-in-one solution gets the job done right the first time, preventing repeat repairs.
- ✔ Broad Compatibility: An exact replacement for a wide range of GM part numbers, including 24252114, 24234503, and 24235753, making it a versatile solution for numerous trucks, vans, and SUVs.
- ✔ Warranty Protection: This unit is backed by our one-year replacement warranty.
Expert Insight: The Dealership Alternative That Puts You in Control
Many repair shops and dealerships will install a generic, unprogrammed module, forcing you to pay an additional one to two hours of labor for them to flash it with their expensive scan tools. Our process eliminates that entire step. We use the latest GM software updates to program the module to your exact VIN before it ships. This means the part that arrives at your door is already tailored to your vehicle’s specific configuration. For a DIY mechanic or a professional technician, this saves critical time and money, turning a complex electronic repair into a straightforward component swap.
Whether you’re fixing the transmission on a hard-working Chevrolet Silverado, a family-hauling Tahoe, or a fleet of Express vans, this Programmed T42 Transmission Control Module is the most reliable and efficient solution to get your vehicle performing flawlessly again.
Frequently Asked Questions
What exactly does a Transmission Control Module do?
The TCM acts as the brain for your automatic transmission. It receives data from various sensors on the engine and vehicle, and uses that information to control when the transmission shifts gears, when the torque converter locks up, and to monitor overall transmission health.
Do I need to get this part programmed by a dealer?
No. The single biggest benefit of our module is that it comes pre-programmed to your vehicle’s VIN. It is ready for installation right out of the box, saving you a trip to the dealership and avoiding their expensive programming fees.
How do I know for sure that my TCM is the problem?
While the symptoms listed above are strong indicators, the best way to confirm is by using a diagnostic scan tool. Codes like P0700 (Transmission Control System Malfunction) or specific solenoid codes (e.g., P0751, P0756) are clear signs that the TCM or the circuits it controls are failing.
Is this a difficult part to install?
For most of the listed GM vehicles, the installation is straightforward and can be completed in under 30 minutes with basic hand tools. The TCM is typically located in an accessible spot in the engine bay. Always remember to disconnect the battery before beginning the replacement.
Will this fit other vehicles besides the Express 1500?
Yes, absolutely. This T42 TCM is compatible with a vast range of 2006-2014 General Motors vehicles, including the Silverado, Sierra, Tahoe, Yukon, Savana, Impala, and many more. Please check the detailed fitment list on this page to confirm compatibility with your specific model.
Is there a core charge for my old part?
No, there is no core charge required for this part. You can keep or dispose of your old module without the hassle of returning it.