2021 - 2025 Chevrolet Trailblazer Automatic Transmission Cooler (OEM)

What to look for when buying this part:

• Compatibility: Ensure the part is designed for your specific vehicle year and model.
• Condition: Assess the condition of the cooler, especially for used parts.
• Warranty: Check if the part comes with a warranty for peace of mind.
• Price: Compare prices from different sources to find the best deal.

Quality indicators for the available options:

• Used OEM: Look for coolers that have been inspected and tested.
• Refurbished OEM: Ensure the cooler has been professionally restored with quality components.
• New Aftermarket: Choose reputable brands known for producing reliable parts.

What's typically included with the part:

• The transmission cooler itself.
• Sometimes, mounting hardware or seals may be included.
• Always confirm what's included before purchasing.

Difficulty level and estimated time:

• Difficulty: Moderate
• Estimated time: 1-3 hours

Special tools needed (if any):

• Socket set
• Wrench set
• Screwdrivers
• Pliers
• Transmission fluid
• Torque wrench
• Possibly line disconnect tools

Critical steps and tips:

1. Disconnect the battery: This prevents electrical shorts.
2. Drain the transmission fluid: Catch the fluid in a pan for proper disposal.
3. Disconnect the cooler lines: Be careful not to damage the lines.
4. Remove the old cooler: Unbolt or unclip it from its mounting location.
5. Install the new cooler: Secure it in place and connect the lines.
6. Refill the transmission fluid: Use the correct type and amount of fluid.
7. Check for leaks: Start the engine and inspect the connections.

Whether DIY is recommended or professional installation is better:

• DIY is possible for mechanically inclined individuals.
• Professional installation is recommended for those without experience.

Compare: Used OEM, Refurbished OEM, New Aftermarket

• Used OEM: A genuine factory part that has been tested and inspected. Offers great value.
• Refurbished OEM: A factory part that has been professionally restored to like-new condition.
• New Aftermarket: A brand new part made by a third-party manufacturer to meet OE specifications.

Used OEM: Best value - genuine factory parts, tested and inspected, at significantly lower prices

• These are original parts taken from vehicles.
• They are inspected to ensure they function properly.
• They offer a cost-effective way to get a quality replacement.

Refurbished OEM: Factory parts professionally restored with new components

• These parts have been cleaned, repaired, and tested.
• Worn or damaged components have been replaced.
• They offer a balance of quality and affordability.

New Aftermarket: Brand new third-party parts built to OE specs

• These parts are manufactured by companies other than the original manufacturer.
• They are designed to meet or exceed the performance of the original part.
• They offer a new part option at a competitive price.

Parts commonly replaced or checked at the same time:

• Transmission fluid: Replacing the fluid ensures optimal performance.
• Transmission filter: A new filter helps keep the fluid clean.
• Transmission cooler lines: Inspect the lines for leaks or damage.
• Radiator cap: A faulty cap can affect cooling system pressure.

Why replacing related parts prevents repeat failures:

• Replacing worn parts together ensures the entire system is working properly.
• This can prevent future problems and extend the life of your transmission.
• Contaminated fluid can damage a new cooler, so replacing the fluid and filter is important.

How long this part normally lasts:

• Typically lasts 5-10 years or 100,000-150,000 miles.

Factors that affect longevity:

• Driving conditions: Harsh conditions can shorten the lifespan.
• Maintenance: Regular transmission fluid changes can extend the lifespan.
• Overheating: Repeated overheating can damage the cooler.
• Quality of the part: Higher-quality parts tend to last longer.

Budget vs mid-range vs premium options:

• Used OEM: $50 - $150
• Refurbished OEM: $100 - $250
• New Aftermarket: $120 - $300

Labor cost considerations if applicable:

• Labor costs typically range from $150 - $400, depending on the shop and location.

Total job cost estimates:

• Total cost can range from $200 - $700, including parts and labor.

Known issues for this vehicle's system related to this part:

• Some models have been known to experience premature transmission cooler failure.
• Regular transmission fluid changes are crucial for preventing problems.

Any TSBs or common complaints:

• Check online resources for any Technical Service Bulletins (TSBs) related to transmission cooling issues for your specific vehicle.

How to confirm proper operation:

• Check the transmission fluid level: Ensure it's at the correct level.
• Monitor the temperature gauge: Make sure it's operating within the normal range.
• Test drive the vehicle: Check for smooth and consistent shifting.

What to look/listen for to verify it's working correctly:

• No leaks: Inspect the cooler and lines for any signs of leaks.
• Normal shifting: The transmission should shift smoothly and predictably.
• No unusual noises: Listen for any whining or clunking sounds.

Q: How do I know if my transmission cooler is leaking?
A: Look for red or brown fluid under your car, especially near the front. Also, check the cooler itself for signs of wetness or corrosion.

Q: Can I drive my car with a leaking transmission cooler?
A: It's not recommended. A leaking cooler can cause the transmission to overheat and fail.

Q: How often should I change my transmission fluid?
A: Refer to your owner's manual for the recommended service interval. Typically, it's every 30,000-60,000 miles.

Q: Is it hard to replace a transmission cooler myself?
A: It's a moderate repair. If you're comfortable working on cars and have the right tools, you can do it yourself. Otherwise, it's best to have a professional do it.

Q: Will a new transmission cooler improve my car's performance?
A: A properly functioning cooler will help maintain optimal transmission temperature, which can improve shifting and extend the life of your transmission.

OEM Part Numbers:

• GM: 24296174

Fits Years: 2021 2022 2023 2024 2025