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GM Releases Fix For GMC Savana Transmission Control Valve Issue

For select units of the GMC Savana, General Motors has released a customer satisfaction program over an issue with a transmission control valve.

According to Customer Satisfaction Program N232428780, certain 2017 Savana and 2021 Savana examples may have a condition where the transmission Control Valve Body Ball Check Valves can prematurely wear, which can cause them to become stuck or pass through the Control Valve Body Space Plate. If this were to occur, the driver may not be able to shift from Park to Drive or Reverse once the affected vehicle begins operation.

Side profile of GMC Savana.

To remedy this, certified GM technicians are instructed to inspect affected units and replace the transmission Control Valve Body Spacer Plate package. Notably, this should take techs a little less than three hours to complete this fix.

It’s worth noting that General Motors has suggested that owners take affected vehicles to Medium Duty dealers to perform the repair. However, if this isn’t possible, owners may take their Savana units to servicing dealers with equipment that meets or exceeds the vehicle weight, which is also able to safely and properly lift the vehicle.

As a reminder, the current GMC Savana is available with two engine options, including the naturally aspirated 4.3L V6 LV1 gasoline engine, rated at 276 horsepower and 298 pound-feet of torque, and the naturally aspirated 6.6L V8 L8T gasoline engine, rated at 401 horsepower and 464 pound-feet of torque. A GM six-speed automatic transmission is matched to both engines. Notably, the 2.8L I4 LWN turbodiesel Duramax engine was dropped for the 2023 model year, as GM Authority previously covered.

2023 GMC Savana Cargo Interior

In regard to structure, the GMC Savana rides on the GMT 610 platform, while production takes place at the GM Wentzville plant in Missouri. Notably, the Savana Cutaway is also produced by Navistar at a separate facility in Ohio.

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As a typical Florida Man, Trey is a certified GM nutjob who's obsessed with anything and everything Corvette-related.

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Comments

  1. Lately At GM,
    It Seems They’re The Only Truck Company Where Failure Is Not An Option.
    It Simply Comes Standard.

    Reply
  2. When did GM forget how to make automatic transmissions? I am ready to make a purchase but I’m afraid of the engine, transmission, and computer issues that GM is having. I may be better off to keep what I have.

    Reply
    1. I’m with you Carl, I have a 1995 Silverado 1500 and was about to upgrade to a new truck years ago till I found out about the Chevy Shake. Also purchased new a 1986 Z28 Carmaro, 1989 Astro Van, and another 2003 Astro Van. No problems with engines or transmissions. Only computer issue I had was the Camaro. Its on 3rd Computer, first one went out in the first year and left my wife on the freeway. I was wanting to purchase an Express Passenger Van but they are nonexistent at dealerships and now a 2 year wait to get one from ordering. I ordered my 86 Camaro, 89 Astro, and 95 Silverado and all came in under 12 weeks. The main issue I’ve had is paint peeling. 89 Astro was white and started peeling under warranty so they repainted it. When I purchased 1995 Silverado in White they said the paint problem was fixed. Well sort of, it just took a little longer before it peeled. Then the Camaro started peeling it was metallic blue. The 2003 Astro in Pewter is still hanging in there, but the clear coat on the roof is gone..

      Reply
      1. I’ve had lots of GMs over the years, 6 of them I bought new. I currently drive a2012 Silverado, the wife has a 2019 Equinox, and our backup is a 2009 Pontiac G-6. All were bought new and all have been great vehicles with very few issues. I’m ready to replace the Silverado but I am worried that the new one will be lower quality than the one I have. It still looks and runs great, I think I’ll drive it a while longer.

        Reply

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