Restore Peak Performance to Your Silverado’s Transmission
If you’re dealing with the frustration of a 2007 Silverado 2500 that’s shifting erratically, getting stuck in gear, or throwing transmission codes, you know how disruptive it can be. As the command center for your 4L80E or other GM 4-speed automatic, a failing Transmission Control Module (TCM) can bring your workhorse truck to a grinding halt. This OEM-quality T42 TCM, part number 24230461, is the definitive solution. We pre-program it to your truck’s specific VIN, ensuring it works perfectly right out of the box—no expensive trip to the dealership required.
From the Diagnostic Bay: A Common Silverado Scenario
I’ve seen this exact issue hundreds of times in my shop. A customer brought in his ’07 Silverado 2500 with the 6.0L, complaining of harsh 1-2 shifts and occasionally getting stuck in 3rd gear (limp mode), especially when towing. The check engine light was on, and my scan tool pulled a P0700 (Transmission Control System Malfunction) and a P0752 (Shift Solenoid ‘A’ Stuck On). While the solenoid code might point to an internal issue, experience with these T42 modules told me to check the controller first. Heat cycles and vibrations cause internal solder joints to fail, leading to intermittent solenoid commands. We replaced his old module with one of our VIN-programmed units, and the problem was solved in under an hour. The truck shifted like new, and the codes never returned. This isn’t just a part; it’s a permanent fix.
Is Your Silverado 2500 Showing These Warning Signs?
- âś” Harsh, banging shifts or delayed gear engagement.
- âś” The truck is stuck in “limp mode” and won’t shift out of 2nd or 3rd gear.
- âś” Check Engine Light or Transmission Warning Light is illuminated.
- âś” Diagnostic Trouble Codes (DTCs) like P0700, P0750-P0758, or other solenoid-related faults are present.
- âś” Sudden loss of power or poor fuel economy directly linked to shifting problems.
- âś” Complete failure to shift or communicate with the scan tool.
A Straightforward Guide to Installation
You don’t need to be a master mechanic to install this part. The entire process typically takes less than 30 minutes with basic hand tools.
- Safety First: Disconnect the negative terminal from your truck’s battery to prevent electrical shorts and help reset the system.
- Locate the TCM: On your 2007 Silverado 2500 (new body style), the TCM is conveniently located in the engine bay, right next to the battery.
- Disconnect and Remove: Carefully unplug the electrical connectors. Press the release tabs firmly. Then, unbolt the 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.
- Final Steps: Reconnect the battery terminal. Start the truck and allow it to idle for a minute. If you have a basic scan tool, it’s good practice to clear any stored DTCs. Take a test drive to confirm the smooth shifting.
Verified Fitment for Your General Motors Vehicle
This T42 TCM is a direct replacement for part number 24230461 and other service numbers. It fits a wide range of GM vehicles, including:
- Chevrolet Silverado 2500 PICKUP (2007): New style (smooth door skin), 6.0L, (next to battery)
- Chevrolet: Avalanche 1500 (07-08), Cobalt (06-10), Colorado (08-12), Express Vans (06-14), HHR (06-11), Impala (06-11), Monte Carlo (06-07), Silverado 1500 (07-13), SSR (05-06), Suburban 1500 (07-08), Tahoe (07-09)
- GMC: Canyon (08-12), Envoy (06-09), Savana Vans (06-14), Sierra 1500/2500 (07-13), Yukon & Yukon XL (07-09)
- Buick: Allure (06-09), LaCrosse (06-09), Lucerne (06-11), Rainier (06-07), Rendezvous (06-07)
- Cadillac: DTS (06-11)
- Hummer: H3 (08-10)
- Pontiac: G5 (07-10), G6 (06-10), Grand Prix (06-08), Pursuit (06), Montana (06-09), Torrent (06)
- Saab: 9-7X (06-09)
- Saturn: Aura (07-09), Ion (06-07), Vue (07-10)
- …and more. Please verify your vehicle in the fitment chart or contact us with your VIN.
Frequently Asked Questions
Do I need to program this 2007 Silverado 2500 TCM?
No. We handle all the programming for you. Simply provide your vehicle’s VIN during checkout, and the module will arrive ready for plug-and-play installation.
Will this fix a P0700 trouble code?
A P0700 code is a general fault request from the TCM to the main computer. In many cases, a failing TCM is the root cause, and replacing it will resolve the code and the underlying issue. However, you should always diagnose any other transmission codes that are present alongside the P0700.
Is there a core charge for my old part?
No, there is absolutely no core charge. You can keep your old part or recycle it without the hassle of sending it back to us.
What kind of warranty is included?
This module is backed by our one-year, hassle-free warranty, giving you confidence and peace of mind in your repair.
What tools are needed for installation?
You’ll only need basic hand tools, typically a socket set to remove the mounting bolts and a wrench for the battery terminal. No specialized equipment is required.