Get Your Work Van Back on the Road, Fast
If your 2006-2014 Chevrolet Express 3500 Van is suffering from unpredictable shifting, getting stuck in gear, or has the check engine light on, a failing Transmission Control Module (TCM) is the likely culprit. As the transmission’s brain, a faulty T42 module can bring your work to a halt. This isn’t just an inconvenience; it’s a hit to your productivity and reliability. This direct-fit replacement TCM, part number 24230461, is the definitive solution to restore your van’s performance and get you back to work without the hassle and expense of a dealership visit.
We take the guesswork out of the repair by pre-programming this module to your van’s specific Vehicle Identification Number (VIN). This means it arrives ready for a true plug-and-play installation, instantly communicating with your vehicle’s powertrain and eliminating the need for expensive programming tools or appointments. It’s the straightforward, reliable fix that professional mechanics and savvy DIYers trust.
Case Study: A Tricky Diagnosis
I had a 2011 Express 3500 work van in my bay last month. The owner, a plumber, was frustrated with intermittent ‘limp mode’ that would happen without warning, forcing him to pull over and restart the vehicle. He’d already replaced a shift solenoid with no luck. After connecting my scan tool, I saw a P0700 (Transmission Control System Malfunction) code but no specific solenoid faults. Experience pointed me to the TCM. Heat soak in the engine bay often causes these T42 modules to develop internal shorts. We installed one of our VIN-programmed units, and the problem was solved in under an hour. He was back on the job the same day, a perfect example of how the right part saves time and money.
Is Your Express Van Showing These Symptoms?
A failing TCM can manifest in several ways. If you’re experiencing any of the following, it’s time to consider a replacement. Over my 20 years in the business, these are the most common indicators I’ve seen for a failing 2006-2014 Express 3500 TCM.
- ✔ Harsh, banging shifts or delayed gear engagement.
- ✔ Vehicle is stuck in one gear (often 2nd or 3rd), also known as “limp mode.”
- ✔ An illuminated Check Engine Light or Transmission Warning Light.
- ✔ Diagnostic Trouble Codes (DTCs) stored, such as P0700, P0750-P0758, or other solenoid-related faults.
- ✔ Inconsistent or no response from the transmission when shifting from Park to Drive.
- ✔ Poor fuel economy and a feeling of sluggish performance.
A Straightforward Guide to Installation
You don’t need to be a master mechanic to install this part. The process is simple and can be completed in your driveway in about 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 system.
- Locate the Module: On the Express 3500 Van, the TCM is typically found 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. Securely reconnect the electrical connectors, ensuring they click into place.
- Final Steps: Reconnect the battery terminal. While the module is plug-and-play, it’s always best practice to use a basic OBD2 scan tool to clear any lingering fault codes from the vehicle’s memory.
Guaranteed Fitment for Your GM Vehicle
This T42 TCM is a direct replacement for part number 24230461 and other interchangeable numbers like 24252114, 24234503, and 24242391. It is engineered to fit a wide range of General Motors vehicles equipped with 4-speed automatic transmissions (4L60E, 4L65E, 4L70E, 4L80E). While this page focuses on the 2006-2014 Express 3500 TCM, it is also compatible with the following models:
- ✔ Chevrolet: Express/Savana 1500/2500/3500, Silverado, Tahoe, Suburban, Impala, Cobalt, HHR
- ✔ GMC: Sierra, Yukon, Canyon, Envoy
- ✔ Buick: LaCrosse, Lucerne, Rainier
- ✔ Cadillac: DTS
- ✔ Pontiac: G6, Grand Prix
- ✔ Saturn: Vue, Aura, Ion
- ✔ Hummer: H3
- ✔ Saab: 9-7X
Frequently Asked Questions
What does ‘VIN Programmed’ actually mean for me?
It means this module is delivered to you with the correct software for your specific vehicle already installed. You can install it right out of the box without needing a trip to the dealer for expensive programming. It’s a plug-and-play solution.
Do I need any special tools for this job?
No. Basic hand tools like a socket set are all that’s required for the physical installation. We do recommend having a simple OBD2 scanner to clear any old codes after the new part is installed, which is good practice for any electronic repair.
Is there a core charge? Do I need to send my old part back?
No, there is absolutely no core charge. You can keep your old part or dispose of it yourself, making the transaction simple and hassle-free.
Will this fix a P0700 code?
A P0700 is a generic code indicating a fault within the transmission control system. In many cases, a failing TCM is the root cause. While this part often resolves a P0700, it’s essential to ensure other components like wiring and solenoids are in good condition.
What if I install it and still have problems?
Our parts are backed by a one-year warranty and expert support. If the issue persists, it may indicate another problem in the transmission system. Contact our support team, and we can help with further diagnostic advice.