Is your 2006-2014 Savana 1500 Van suffering from harsh shifting, getting stuck in gear, or throwing transmission codes? As a technician with over two decades of experience, I’ve seen firsthand how a failing Transmission Control Module (TCM) can bring a reliable workhorse to a standstill. A faulty TCM doesn’t just affect performance; it impacts your safety and your livelihood. This replacement T42 TCM, part number 24243901, is the definitive solution to restore your van’s transmission to its original, smooth-operating condition.
The biggest headache with module replacement is usually the follow-up trip to the dealership for expensive programming. We eliminate that step entirely. Each module is expertly programmed to your van’s specific Vehicle Identification Number (VIN) before it ships. This means it arrives ready for a true plug-and-play installation, instantly communicating with your vehicle’s systems to ensure correct shift points, torque converter lockup, and fuel efficiency. Stop guessing and get the right part, programmed correctly, the first time.
Case Study: A Tricky Diagnosis
A local contractor brought in his ’09 Savana 1500. The van would intermittently refuse to shift out of 2nd gear, especially on hot days after multiple stops. He’d already replaced a shift solenoid with no luck. After connecting my scan tool, I saw a generic P0700 code but also intermittent communication loss with the TCM. Instead of a clear-cut solenoid failure, the TCM itself was overheating and failing. We installed one of our pre-programmed T42 modules. The entire job took less than an hour in the bay, and the van was back on the road, shifting perfectly. The pre-programming saved him a full day of downtime and the extra cost of a dealer visit.
Is Your Savana Showing These Symptoms?
A bad TCM can manifest in several ways. If you’re experiencing any of the following, it’s a strong indicator that your 2006-2014 Savana 1500 TCM needs replacement:
- ✔ Harsh, slamming, or erratic gear shifts.
- ✔ The transmission feels like it’s slipping or hesitating between gears.
- ✔ Vehicle is stuck in “limp mode” (usually second or third gear).
- ✔ Check Engine Light or Transmission Warning Light is illuminated.
- ✔ Diagnostic Trouble Codes (DTCs) are present, such as P0700, P0750, or other solenoid-related codes.
- ✔ Complete failure to upshift or downshift.
- ✔ A noticeable drop in fuel economy.
A Straightforward Guide to Installation
Replacing the TCM on your Savana is a job most DIYers or any professional can handle in under 30 minutes with basic tools. No complex procedures are required.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the Module: On the 2006-2014 Savana Van, the TCM is conveniently located in the engine compartment on the right-hand (passenger) side.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. 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. Ensure they click into place.
- Final Steps: Reconnect the battery terminal. While the module is plug-and-play, it’s good practice to use a basic scan tool to clear any stored DTCs from the system.
Verified Vehicle Compatibility
This module is a direct-fit replacement for a wide range of General Motors vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. It is interchangeable with part numbers 24252114, 24234503, 24243901, and others. Please verify your vehicle is on the list below:
- SAVANA 1500 VAN 06-14 Transmission; (RH engine compartment)
- ALLURE 06-09 Transmission; (lower air cleaner housing)
- AVALANCHE 1500 07-08 Transmission; (next to battery)
- CANYON 08-12 Transmission; (RH rear engine compartment)
- COBALT 06-10 Transmission; (LH strut tower)
- COLORADO 08-12 Transmission; (RH rear engine compartment)
- DTS 06-11 Transmission; (RH front engine compartment)
- ENVOY 06-09 Transmission; (LH engine compartment)
- EXPRESS 1500/2500/3500 VAN 06-14 Transmission; (RH engine compartment)
- G5 07-10 Transmission; (LH strut tower)
- G6 06-10 Transmission; (LH strut tower)
- GRAND PRIX 06-08 Transmission; (lower air cleaner housing)
- HHR 06-11 Transmission; (LH engine compartment)
- HUMMER H3 08-10 Transmission; (RH rear engine compartment)
- IMPALA 06-11 Transmission; (lower air cleaner housing)
- ION 06-07 Transmission; (behind LH strut tower)
- LACROSSE 06-09 Transmission; (lower air cleaner housing)
- LUCERNE 06-11 Transmission; (LH engine compartment)
- MALIBU 06-10 Transmission; (LH frame rail)
- MONTE CARLO 06-07 Transmission; (lower air cleaner housing)
- MONTANA 06-09 Transmission; (LH strut tower)
- SAAB 9-7X 06-09 Transmission; (LH engine compartment)
- SIERRA 1500/2500 PICKUP 07-13 Transmission; (next to battery)
- SILVERADO 1500/2500 PICKUP 07-13 Transmission; (next to battery)
- SUBURBAN 1500 07-08 Transmission; (next to battery)
- TAHOE 07-09 Transmission; (next to battery)
- TRAILBLAZER 06-09 Transmission; (LH engine compartment)
- VUE 07-10 Transmission
- YUKON & YUKON XL 1500 07-09 Transmission; (next to battery)
Frequently Asked Questions
Frequently Asked Questions
Do I need to program this module after I receive it?
No. This is the biggest benefit we offer. We program the module to your vehicle’s VIN before shipping, so it’s ready for installation right out of the box. You will not need a trip to the dealer.