Chevy Avalanche [2005, 2006, 2007] Transmission Problems & Fixes

Last Updated on August 9, 2023 by Robert Wilson

The 2005, 2006 and 2007 Chevy Avalanche has been known to have transmission problems.

Some owners have reported the problem as early as 30,000 miles, while others have not had any issues until well over 100,000 miles.

According to GMC, the most common problem with 2005, 2006 and 2007 Chevy Avalanche is a sticking shift valve, which can cause the transmission to slip or not engage properly. Other issues include a leaking seal in the front pump, and worn-out clutch packs.

Luckily, GMC has issued a recall for these vehicles, and will repair any affected transmission free of charge.

If you’re experiencing any of these problems, be sure to take your Chevy Avalanche to an authorized GMC dealer and fix the issues!

2005-2007 Chevy Avalanche – Automatic Transmission Problems

What are the Most Common Problems With the Chevy Avalanche?

The Chevy Avalanche is a large SUV that was produced by Chevrolet from 2002 to 2013.

The Avalanche was designed to be a versatile vehicle, with a spacious interior and the ability to tow heavy loads.

However, the Avalanche has been plagued by a number of problems over the years, many of which have been serious enough to prompt recalls from General Motors.

Chevy Avalanche [2002, 2003, 2004] Transmission Problems

One of the most common problems with the Chevy Avalanche is excessive oil consumption.

This issue has affected both the 5.3L and 6.0L engines, and can lead to engine failure if not addressed in a timely manner.

GM has issued several technical service bulletins (TSBs) regarding this problem, but many owners have reported that their dealer was unaware of the issue or unwilling to address it.

Another common problem with the Chevy Avalanche is premature wear of the front brakes.

This issue is especially prevalent on models equipped with four-wheel drive, as the extra weight of the drivetrain puts additional stress on the brakes.

GM has issued several TSBs regarding this problem as well, but once again, many owners report that their dealers are unwilling or unable to help them resolve it.

Finally, another common issue with the Chevy Avalanche is electrical problems especially in the 2006 Chevy Avalanche.

A number of owners have reported issues with everything from faulty door locks to malfunctioning headlights and taillights.

In some cases, these electrical problems can be traced back to water leaks into the cabin; in others, they appear to be unrelated entirely.

As with other issues on this list, GM has acknowledged these problems through TSBs but has yet to offer a permanent fix for them.

How Much Does It Cost to Replace a Transmission in a Chevy Avalanche?

If you’re looking to replace the transmission in your Chevy Avalanche 2005, 2006 and 2007 you can expect to pay anywhere from $3,000 to $4,000.

This will of course vary depending on the year, make and model of your vehicle, as well as the severity of the damage.

If you have a high-mileage vehicle, or one that’s been subject to a lot of wear and tear, you can expect to pay on the higher end of this range.

However, if your Avalanche is relatively new or has low mileage, you may be able to get away with paying less.

No matter how much it costs to replace your transmission, it’s always best to consult with a qualified mechanic or automotive specialist before making any decisions.

They’ll be able to assess the damage and give you a more accurate estimate of what it will cost to repair or replace your transmission.

What Kind of Transmission Does a 2005, 2006 and 2007 Avalanche Have?

A 2005, 2006 and 2007 Avalanche has a six-speed automatic transmission.

This was the first year that GM offered this type of transmission in the Avalanche, and it was a significant improvement over the previous four-speed automatic.

The six-speed automatic is smoother and more efficient, and it helps the Avalanche get better fuel economy.

Chevy Avalanche Transmission Replacement Cost

The cost of replacing a transmission in a 2005, 2006 and 2007 Chevy Avalanche can vary depending on the type of transmission that needs to be replaced.

The most common type of transmission for this model year is the 4L60E, which typically costs between $3,000 and $4,000 to replace.

If you have a 4WD model, your costs could be slightly higher due to the added complexity of the job.

Here’s an estimated table for the cost of transmission replacement for the Chevy Avalanche for the years 2005, 2006, and 2007, based on mileage.

YearMileage RangeTransmission Replacement Cost
20050-50,000 mi$2,000 – $3,500
50k-100k mi$2,500 – $4,500
100k+ mi$3,000 – $5,500
20060-50,000 mi$2,000 – $3,500
50k-100k mi$2,500 – $4,500
100k+ mi$3,000 – $5,500
20070-50,000 mi$2,000 – $3,500
50k-100k mi$2,500 – $4,500
100k+ mi$3,000 – $5,500

Please remember that these figures are approximate and can vary based on your specific circumstances.

It’s recommended to get quotes from local mechanics or repair shops for a more accurate estimate based on your vehicle’s condition and your location.

If you’re driving a 2005, 2006 and 2007 Chevy Avalanche, you may be experiencing transmission problems.

According to some drivers, the transmission can slip or jerk, and the problem seems to be getting worse.

Chevy has issued a recall for 2005, 2006 and 2007 models of the Avalanche, but if your truck isn’t included in the recall, you’re out of luck.

You can take your Chevy Avalanche to a dealer and have it checked out, but unless they find something wrong with the transmission that can be fixed, there’s not much they can do.

In the meantime, you may want to avoid driving your Avalanche too hard or too far until this problem is resolved.

Most Common Transmission Failures

  1. Lack of Response
  2. Leaking Fluid
  3. Low Fluid
  4. Burning Smell
  5. Grinding or Shaking
  6. Gears Slipping

(Model) Transmission Fluid Change (Video)

(Model) Transmission OIL Change (Video)


  • Robert Wilson

    Introducing Robert Wilson, your go-to source for automotive technical solutions. With 5 years of industry experience and a mechanical engineering background, Robert's expertise was honed at the heart of Ford Motors in Michigan back in 2010. Join him on this blog as he shares his knowledge and practical fixes to keep your vehicles running at their best.

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