Restore Your Workhorse: The Definitive Fix for Your Savana’s Transmission
As a business owner or a dedicated DIYer, you know that a GMC Savana 2500 Van isn’t just a vehicle—it’s a tool. When it’s down, you’re losing time and money. If your van is suffering from erratic shifting, getting stuck in gear, or has a lit check engine light, the culprit is often a faulty Transmission Control Module (TCM). This VIN-programmed T42 TCM, part number 24252114, is the reliable, no-hassle solution designed to get your 2006-2014 Savana 2500 Van back on the road and earning its keep.
The TCM is the brain of your automatic transmission, controlling everything from shift points to torque converter clutch engagement. Over years of service, exposure to engine bay heat and vibration can cause these modules to fail, leading to frustrating and sometimes dangerous driving conditions. Our replacement module is programmed specifically to your van’s VIN, ensuring it works perfectly with your 4L80E or other GM transmission right out of the box. No expensive trips to the dealership for programming are needed.
From the Diagnostic Bay
I once had a 2011 Savana 2500 work van come into my shop. The owner was convinced his transmission was shot. It was shifting hard from 1-2 and occasionally going into limp mode. He’d already replaced two shift solenoids based on some generic advice, with no luck. After connecting my scan tool, I saw a P0700 (Transmission Control System Malfunction) and an intermittent solenoid circuit code. Instead of tearing into the transmission, I checked the TCM. Experience has taught me that on these vans, the TCM is a common failure point. We installed a VIN-programmed module, and in under 30 minutes, the van was shifting like new. It saved the owner thousands on an unnecessary transmission rebuild.
Is Your Savana Showing These Symptoms?
- ✔️ Harsh, delayed, or unpredictable gear shifts.
- ✔️ The vehicle is stuck in ‘limp mode’ (usually 2nd or 3rd gear).
- ✔️ Check Engine Light or Transmission Warning Light is on.
- ✔️ Diagnostic Trouble Codes (DTCs) like P0700, P0750, P0753, or other solenoid-related codes are present.
- ✔️ A sudden drop in fuel economy or a feeling of sluggish performance.
- ✔️ The transmission seems to slip out of gear or fails to engage properly from Park.
A Straightforward Guide to Installation
Getting your van back in service is easier than you think. This installation can be done in your driveway with basic hand tools in about 30 minutes.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the system.
- Locate the Module: On the 2006-2014 Savana 2500 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, as they can become brittle over time. Then, unbolt the old module from its mounting bracket.
- Install the New TCM: Bolt the new, pre-programmed module into place and securely reconnect the electrical harnesses. You should hear a ‘click’ as they lock.
- Final Steps: Reconnect the battery terminal. Start the engine and let it run for a minute. While the module is plug-and-play, it’s good practice to use a basic scan tool to clear any stored fault codes from the previous failure.
Guaranteed Fitment for Your GM Vehicle
While this is the perfect 2006-2014 Savana 2500 TCM, this versatile T42 module is also a direct replacement for a wide range of other General Motors vehicles. It is interchangeable with part numbers including 24234503, 24230461, 24234274, 24255280, and others. Please verify your part number or contact us with your VIN to ensure compatibility.
This module fits various models such as:
- GMC Savana / Chevrolet Express (1500, 2500, 3500): 2006-2014
- GMC Sierra / Chevrolet Silverado (1500, 2500): 2007-2013
- GMC Yukon / Chevrolet Tahoe / Suburban: 2007-2009
- And many more GM cars, trucks, and SUVs from 2006-2014.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. We program the module to your vehicle’s specific VIN before shipping. It arrives ready for a plug-and-play installation, saving you time and the high cost of dealership programming.
What tools do I need for installation?
You’ll typically only need a basic socket set to remove the mounting bolts and potentially a flathead screwdriver to help release the connector clips. No specialized tools are required.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module or dispose of it without the hassle of returning it.
What kind of warranty is included?
This transmission control module comes with a one-year warranty, giving you peace of mind and confidence in your repair.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. While a faulty TCM is a very common cause, this code can also be triggered by issues within the transmission itself. Replacing the TCM often resolves the P0700 and any related specific codes (like for solenoids), but you should ensure the transmission hardware is in good condition.