Silverado 6L80e 6L90 NO DRIVE/Forward Gears FIX!!

Hopefully this will help some people that may experience this sudden loss of drive in their GM pickemup.

I understand that this is not always the case but it sure is a good starting point! Especially if you know you haven't beat yer trans into a no forward movement situation.

Simple fix that can potentially save you thousands of monies and get you back on the road in no time!

Thanks for watching and enjoy!

[MrJohnbrickner]

This is %100 Legit. I have a 2017 GMC Yukon with 88K. These exact symptoms, strong reverse, no forward gears. No code, not burned, not slipping. I bought the service kit at the dealer, $28, easy. Dropped the pan and valve body, had to loosen the right exhaust at the manifold. My ball valve was clearly half size, clearly stuck. New fluid and filter. Carefully aligned the electrical plug and the shifter plunger. Works like a dream. No doubt this person saved me 4-5 thousand dollars. My clutches were not worn, barely anything in the pan. Wife stunned. Can't thank this person enough.

[bigboy]

Thank you for the fix . My 2017 suburban transmission lost forward. And I bought all the parts that you showed and now my transmission works like a dream . Thanks again and may God bless

[fredbaltazar]

Extremely grateful for this video, Saved our customer lots of money and gained their confidence, other shop’s telling her change the transmission, we took a chance and saved them Thousands on unnecessary expense. Can’t thank you enough

[abigailtessmer]

Our shop just came across the same exact truck 2017 Chevy Silverado 2500HD 6L90 Trans. Same. Exact. Issue. It just didn't make any sense compared to when transmissions usually go out. THIS VIDEO WORKS!!! THANK YOU SO MUCH FOR SHARING THIS!!! Identifix, which is a technician software for diagnostics didn't even have anything on this issue.

[jorgetoledo]

Thank you for the video! This just happened to my 2017 Silverado 1500 crew cab 90k miles. Called three mechanics all said it was the transmission. $2500, $3000, $4500 quotes!…. Found your video, decided to give it a shot since truck showed no prior symptoms before not going forward at a red light, reverse worked perfectly. $180 later, 5hrs of time… and she’s running as smooth as before!… once again, Thank you!

[PeterHeiser-ev]

Thanks for the video. You saved me tons of money for worn parts that are replaceable. My 2013 Suburban was back on the road in a day.

[carlosespinosa]

Thank you so much for this video, 2017 chevy silverado 2500 6.0 had no trouble codes stored, randomly i would not move forward, only reverse, did as you specified on video, issue was fixed, one of the plastic balls had decreased significantly in size to the point it got stuck, poor design that is making GM lots of money, PEOPLE LIKE YOU SHOULD BE GETTING SOME MONEY FROM GM. Thank you for taking your time to post this amazing video.

[inc.]

Thanks for the video. It was like a vidoe game trying to pause the video for the part #'s 😂😂😂 very creative. Random welding shot added a bonus to figuring out how to separate the valve body 😂🤘 seriously with ❤🤝 thanks man!
50inc. (Backwards Truck) guy. I owe you a beer 🍺 for the fit tip. Transmission shop did want to bend me over. 😂 Thanks again

[stoneyshifflett]

Got a 1999 gmc suburban & worked perfect, just changed filter & everything was running real good, no hard shifting gears, smooth gear change & came down a hill & turned & accelerated & NOTHING, would not go forward at all but has reverse. No whining noise, no rough gear change, just no longer have forward gears. Reverse works perfect.

It's the 4L60E I think

[fbenavides]

fixed it, sweet video. all gears work, still have reverse though! video is a milestone! thank you brother!

[ericbrown]

I just had this happen on my 2011 Suburban. Freshly rebuilt 40k miles ago. Fluid not burnt at all, no codes, no fwd gears but reverse is fine. Pulled the valve body and everything still looks new and undamaged. Turns out the 1-2-3-4 piston cracked and presents the same symptoms. You can check this when you drop the valvebody to see if the check balls are the issue. 1-2-3-4 feed is the forward most hole next to the filter hole on the trans where you just removed the valvebody from. It should be super tight and hold air with very minimal leakage. If you hear it dump air you have a cracked piston. Gm has 4 different revisions of it since it is such a problem and sonnex makes a nice billet upgrade for less than $100.

[mattmaryan]

Awesome Buddy! Had the same thing on a 2010 Cadillac for a customer. I found this and it was exactly that! THANK YOU! (Y)

[Go]

Common causes of this condition-broken sprag in the low reverse clutch stack in the BOTTOM of the center support, cracked 1-2-3-4 piston, stuck check ball in separator plate, bad TEHCM, and the number one cause of loss of ALL movement-both forward and reverse (usually when fluid/trans is hot) is the torque converter coming apart. I build these units every single day and I LOVE them! They are great units, they just have a few quirks. For those of you going in to replace the white plastic check balls-buy .250" TORLON check balls from your local trans supplier.. They will last significantly longer than the white plastic check balls GM utilizes. They are a caramel or brown color. That's what we use at my shop.

[joshbadman]

Do you have a video showing the complete process? Breaking down the valve body, placing the plastic balls and everything?

[jeremylowe]

I did my 17 express van in my driveway. 73k miles. Dealership wanted 1k. The check ball was $4.50. 10m inverted plus was 17.00. 3 hrs to complete. No need for the new plate. The balls are shit. I did replace the trans filter too.

[danielmellott]

Amazing helped me diagnose my transmission problem. Thank you

[jasonpantages]

thanks for the info and video. I'll try this tomorrow and hopefully save $4800!

[DarinDeCarolis]

I’am writing to express my gratitude for the valuable information you provided in your recent video. I found it to be very informative and helpful.

However, I do have a question regarding a certain situation I am currently facing. Recently, I noticed that the transmission in my truck was not functioning properly. After repairing it, the transmission works fine until it reaches around 170 degrees and then it throws a code. (p0741 - torque converter clutch system stuck off)

Prior to this issue, the truck was running properly with no problems. The problem started with the transmission falling out of gear twice within 20 minutes of each other when starting to move forward after a stop light. I have not noticed any other symptoms.

I would greatly appreciate your opinion on the matter. Any insight or advice you could provide would be very helpful.

[freekinAMERICA]

Hell of a video man. Fixing to do this on my brothers truck. Thanks!

[charlesterrizzi]

Yo, this is exactly what happened to mine and this video just saved me $5700, got it fixed for under $300, looks like that ball wears out on some sharp edges in the body 133k miles. Drive would not engage/hesitant