Restore Flawless Shifting in Your GM Vehicle
Is your 2005 Pontiac Pursuit or other GM vehicle suffering from erratic transmission behavior? Issues like harsh, delayed shifts, getting stuck in gear, or an illuminated Check Engine Light can point directly to a failing Transmission Control Module (TCM). This critical component is the brain of your automatic transmission, and when it falters, it can make your car feel unreliable and unsafe to drive. This replacement TCM, part number 24239427, is the definitive solution to get your vehicle operating smoothly again.
We take the guesswork and high cost out of the repair. Unlike a generic part from a local store, this module arrives at your door fully programmed with the latest official GM software. All we need is your vehicle’s VIN at checkout. This crucial step ensures the TCM is perfectly matched to your car’s specific configuration, making the installation a true plug-and-play process. You get a reliable, long-term fix without the expensive trip to the dealership for programming.
From the Diagnostic Bay: The Ghost in the Transmission
I remember a 2005 Cobalt—which shares its platform with the Pursuit—that came into my shop with a baffling issue. The owner complained of sudden, violent 1-2 shifts, but only when the engine was warm. We checked the fluid, solenoids, and mechanical components, and everything looked perfect. No metal shavings, no burnt fluid. The scanner, however, kept showing an intermittent U0101 ‘Lost Communication with TCM’ code. After swapping in a known-good module, the problem vanished instantly. The original TCM’s internal board was failing under heat, causing data dropouts. It’s a classic failure mode I’ve seen dozens of times on this GM platform, and a new, properly programmed module is always the correct fix.
Key Symptoms of a Failing Transmission Control Module
If your vehicle is exhibiting any of the following signs, a faulty TCM is the most likely culprit. Replacing your 2005 Pursuit TCM can resolve these common issues:
- ✔ Unusually harsh or abrupt gear changes.
- ✔ The transmission hesitates or delays shifting into the next gear.
- ✔ Being stuck in one gear (often called “limp mode”).
- ✔ The gear selector indicator on your dash is incorrect or blank.
- ✔ Check Engine Light is on with transmission-related codes like P0700, P0751, or U0101.
- ✔ Poor fuel economy due to inefficient shifting.
A Straightforward Guide to Installation
Installing your new 2005 Pursuit TCM is a manageable job for a DIY enthusiast. Since the module comes pre-programmed, no special scan tools are required.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure the system is fully discharged.
- Locate the TCM: On the Pontiac Pursuit and Cobalt, the TCM is located in the engine bay, mounted behind the driver’s side (LH) strut tower. On other models, it may be near the air cleaner housing or on the frame rail.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. Press the release tabs firmly to avoid damage. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new TCM into place and securely reconnect the electrical harnesses. You should hear a click as they lock in.
- Final Steps: Reconnect the negative battery terminal. Start the vehicle and allow it to idle for a few minutes. Take it for a test drive to confirm that shifting has returned to normal.
Verified Vehicle Compatibility
This module is a direct-fit replacement for a wide range of vehicles and is compatible with multiple part numbers, including 24223112, 24226863, 24233595, 24234189, and more. Please verify your model and options below:
COBALT 05 (LH strut tower)
CORVETTE 05 (LH frame rail)
ENVOY 05 (8 cyl, LH engine compartment)
ENVOY XL 05 (8 cyl, LH engine compartment)
ENVOY XUV 05 (8 cyl, LH engine compartment)
GRAND PRIX 05 (lower air cleaner housing)
GTO 05
ION 05 (behind LH strut tower)
LACROSSE 05 (3.6L, lower air cleaner housing)
PURSUIT 05 (LH strut tower)
RAINIER 05
RENDEZVOUS 04-05 (3.6L, air cleaner box)
TRAILBLAZER EXT 05 (8 cyl, LH engine compartment)
Frequently Asked Questions
Why is my VIN required for this part?
Your Vehicle Identification Number (VIN) allows us to program the TCM with the exact software calibration GM specifies for your car’s engine, transmission, and options. This ensures perfect compatibility and performance right out of the box.
Is this part difficult to install myself?
For someone with basic mechanical skills, this is a very straightforward repair. Since we handle the programming, it’s a simple unbolt-and-replace job. No special computer tools are needed.
Will this fix my car’s harsh shifting?
In the vast majority of cases, yes. Harsh shifting, hesitation, and being stuck in gear are hallmark symptoms of a failing TCM. This part is designed to correct those specific electronic faults.
What happens if I don’t replace a bad TCM?
Continuing to drive with a faulty TCM can lead to more significant transmission damage. Poor shift commands can cause excessive wear on internal clutches and bands, potentially turning a simple electronic repair into a major mechanical overhaul.
Does this part work for the 2005 Pontiac Pursuit with the 2.2L engine?
Yes, this TCM is the correct module for the 2005 Pursuit. The location behind the LH strut tower is specific to this model and its platform-mates like the Cobalt and Ion.
Are any other steps needed after installation?
No. Because the module is pre-programmed to your VIN, there is no need for a dealer-required security relearn or transmission adaptive pressure reset. Simply install it and drive.