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Delayed Engagement on the 8L90E

Badass69

By Badass69
in Troubleshooting & Recalls

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Badass69 Senior Enthusiast

Badass69

Posted
  • Author
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Lol. Mine are paid for the day I pick them up... who cares lol. I have dumped problematic pieces of junk.. like my prior 14 month old F150... and move on. It's a lot simpler than having your truck sit at a dealer for weeks or months. But mine make money too... so I look at it differently. Have fun driving your never ending rentals! I will in the meantime enjoy my truck until it bores me and I buy another one.

 

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  • 2 weeks later...
Rme2513 Enthusiast

Rme2513

Posted
Posted

Parts are here taking it in Monday they said the first one they did went well no delay what so ever and the shuttering is gone the only thing is the shifting is more firm And that the guy was completely pleased with it so we will see how mine turns out

  • 2 weeks later...
benjaminforeal Enthusiast

benjaminforeal

Posted
Posted

Taking my truck in this morning for the exact same issue. Seems like the clunking is getting worse as the truck gets more miles put on her. Hopefully my dealership will fix it as they did yours!

Rme2513 Enthusiast

Rme2513

Posted
Posted

Well it's been done and it's a lot better no more delayed engagement or falling on it face while shifting some shifts are a lot more firm just depending on the conditions every now and them the initial shift into drive wil lunge hard but no delay it is not perfect but it's a lot better then it was it was well worth getting it done

  • 1 month later...
argus Enthusiast

argus

Posted
Posted
Mine is currently in the shop with the delayed engagement issue. If the truck has sat for more than a few hours, it's a guarantee that during the initial shift from Park to Drive, it delays a couple seconds, and then BAM--it's hard into first. Have to have foot on brake very firmly; otherwise, truck is sailing forward a foot or two. The delayed engagement from Park to Drive is literally that harsh.



Badass69 Senior Enthusiast

Badass69

Posted
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I took mine in finally... And now I have more miles on since the stator change. It really didn't do a hell of a lot of anything. It still clunks, shifts rough and lags shifting from park. So... I will just drive it now. The 16s still do this too so it's not like a new transmission will fix anything.

 

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Dunc Enthusiast

Dunc

Posted
Posted

I just dropped off my '15 Sierra at the dealership this morning. It was only there for a couple hours. I was already gone and uploading videos to send to them showing it acting up in case it didn't for them personally. As I was typing the email with links they called me and stated that it acted up on them so they confirmed the clunk when shifting into gear. I had printed this TSB for them before I went in this morning and they said it did apply to me when they just called. They also said that it had "excessive play in the gears." As a result no work is being done on the 41k mile transmission. They are just yanking it out and completely replacing it. I only tried once before to show them while it was in for service on something unrelated. I had got the "it's normal" response that time. I've had this happening since day 1 of ownership but never really pressed the issue until I found this TSB so thank you very much for getting the ball rolling for me. I figured that armed with this TSB and videos proving what was happening that I was bound to get something done....just wasn't expecting it to be a completely new transmission lol.

 

Side note: I have a '16 Sierra SLE extended cab w/5.3L 6-speed as a loaner. The transmission in this one is WAY more "confident" with what it's doing and doesn't clunk or anything. It was immediately noticeable. Granted I'm comparing apples & oranges so it should be interesting to see what the new 8-speed feels like. Makes me nervous right now though that some new issues will be there after the work is complete.

 

I just feel great that I've been validated by the dealership finally as I've been saying since the day I bought it that something just wasn't right in the transmission. :cheers:

argus Enthusiast

argus

Posted
Posted

Anyone hear of the few 17's out there if this is still happening. I'm thinking of trading off my 15 for one.

According to the TSB, 8-spd trucks "shouldn't" have the delayed engagement issue if the build date is after 10/12/2015.

Badass69 Senior Enthusiast

Badass69

Posted
  • Author
Posted

 

 

According to the TSB, 8-spd trucks "shouldn't" have the delayed engagement issue if the build date is after 10/12/2015.

I have read that too so its interesting if it changes for trucks after or not. Maybe I should go bitch for a new transmission if that's the case as the stator swap literally did absolutely nothing for my truck. It was better and after a few miles back to the same thing as before.

 

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argus Enthusiast

argus

Posted
Posted

Mine is still in the shop, unfortunately. Am not bothering my service advisor too much because I know he and tech are at the mercy of GM when it comes to drivetrain repairs. Mine is a May 2015 build so am hoping for the best. :fingersx:

Rme2513 Enthusiast

Rme2513

Posted
Posted

Well mine is acting up again would hardly back out of the driveway yesterday without revving to 3k rpm and slow to engage to drive this thing is junk do t know when I can get to the dealer might just let it burn up then they will have to replace it again

  • 3 months later...

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