Went in for second oil change with 10K miles. Getting a new transmission.

[DraKhen99]

If you haven't already, enable the gear counter on the dash so you can see what gear it is in. I've got 3.92's, so the downshift happens at a pretty low speed, but still will get to first before I stop - and I get the bump even 30 seconds after I've stopped. It happens when I let off the brakes, so I'm 100% certain it's not the transmission - should have been in first for a while after being stopped for that long.

I enabled the gear display on Day #2 with the truck I'm pretty sure I see it at 3 and then 1. I will try to pay more attention to it. It's definitely only having a slight thump when coming to a stop, not when starting off or just sitting still. I've got the 3.92s as well.

-John

 

[whetrick1]

I enabled the gear display on Day #2 with the truck I'm pretty sure I see it at 3 and then 1. I will try to pay more attention to it. It's definitely only having a slight thump when coming to a stop, not when starting off or just sitting still. I've got the 3.92s as well.

-John

Mine won't even go from 2nd to 1st until your at a complete stop. If I pull up to a stop sign and don't completely stop it will stay I either 3rd or 2nd.


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[DraKhen99]

Mine won't even go from 2nd to 1st until your at a complete stop. If I pull up to a stop sign and don't completely stop it will stay I either 3rd or 2nd.


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Interesting ... like I said, I'll have to pay more attention to it. Pretty sure my truck downshifts to 1 before the stop, but just barely.

-John

 

[RamCares]

For those of you having the dreaded 'bump' after you come to a stop and let off the brakes, and also sometimes when taking off from a stop - I might have some good news.

My dealer spent two days last week looking at my truck, and had their shop foreman look at my truck. He felt it clear as day, and agreed with me that it doesn't feel right. He contacted STAR and spoke with one of their engineers, and they both concurred that it was likely the slip yoke in the rear driveshaft sticking that might be causing this - they both agreed it should move freely, whereas mine does not.

A new driveshaft is on order as of last Thursday, which should arrive this week. I will report back if this actually fixes the bump, and if I can get it out of the dealer, I will get the STAR case number as well.

Hello HKP7PSP

Keep us updated on your dealer visit. If we can be of any assistance, send us a direct message. We'd be glad to help.

Lamar
RAM Social Care Specialist

 

[HKP7PSP]

Hello HKP7PSP

Keep us updated on your dealer visit. If we can be of any assistance, send us a direct message. We'd be glad to help.

Lamar
RAM Social Care Specialist

Thank you Lamar, my dealer called me this morning to let me know the part arrived, and we've scheduled for next Thursday morning for the install and subsequent test drive. I will keep everyone apprised of how this goes, and hopefully this corrects the problem.

 

[DraKhen99]

Interesting ... like I said, I'll have to pay more attention to it. Pretty sure my truck downshifts to 1 before the stop, but just barely.

-John

OK, so I figured out what I'm noticing - it's the 4-3 downshift. It happens on quicker stops, and just appears to be the transmission downshifting.

-John

 

[RamCares]

Thank you Lamar, my dealer called me this morning to let me know the part arrived, and we've scheduled for next Thursday morning for the install and subsequent test drive. I will keep everyone apprised of how this goes, and hopefully this corrects the problem.

Thank you for the update.. Please send us a PM if needed..
Lamar
RAM Social Care Specialist

 

[Rustydodge]

A slight kick downshifting from 2-1 is absolutely normal operation for the ZF 8 speed, regardless of miles. I have 2 hemi vehicles with the 8 speed (Ram 1500 with 105k miles and a durango with 45k miles). Both do it, and it is not a problem. I would never describe it as harsh though. Another trait is 1-2 upshiift lag when trans is cold or first shift of the day - normal clutch fill procedure of the trans.

I was having a rough 5-4 downshift/surge with our durango. Got a new valve body under warranty at 40k miles which solved the problem. Quite rare from my research

 

[HKP7PSP]

A slight kick downshifting from 2-1 is absolutely normal operation for the ZF 8 speed, regardless of miles. I have 2 hemi vehicles with the 8 speed (Ram 1500 with 105k miles and a durango with 45k miles). Both do it, and it is not a problem. I would never describe it as harsh though. Another trait is 1-2 upshiift lag when trans is cold or first shift of the day - normal clutch fill procedure of the trans.

I was having a rough 5-4 downshift/surge with our durango. Got a new valve body under warranty at 40k miles which solved the problem. Quite rare from my research

This isn't 2-1 downshifting that some of us are talking about, I've been in several vehicles with the ZF8, and not just FCA models. Your transmission should be in first gear after being stopped for several seconds, which is when this bump is happening for some of us. My dealer found a problem with the slip yoke binding on the drive shaft.

The symptoms are basically a bump or jolt feeling after coming to a stop, and releasing the brakes. Sometimes it happens when you accelerate after stopping. You can come to a stop smoothly, even wait a whole light cycle, and boom - as soon as you let off the brakes, something jolts you forward. It's the driveshaft coming unbound and sliding back to its neutral state. It's a problem that's been around for decades, and can usually be fixed with grease on the driveshaft slip yoke splines. My dealer has decided to replace the entire shaft.

 

[Diamondback]

My current vehicle (16 Durango R/T) does it as well every so often .. glad I came across this post so I can at least take a look-see underneath.

 

[Rustydodge]

I went in to get my second oil change with 10K miles. I was at the dealership a few weeks ago because I was having the common harsh downshift from 2-1. They did a software update. It seemed better at first but ended up getting worse. It wasn't so bad that I thought it couldn't be driven so I waited till it was time to change my oil again to go to the dealership. When I went in for the oil change I mentioned I was still having issues to the service adviser. I left it overnight. The next morning I get a call from the service adviser letting me know I'm getting a new transmission. How crazy is that? A brand new truck with 10K miles and new transmission. I have lost all confidence in this truck. I have already been in for multiple recalls, and minor warranty fixes. The strange ticking noises on startup with the Hemi engine is not comforting either. I may be looking at a new Ford 5.0 F150 soon.

I have had issues since new. I have 5500 miles on it now. I get a light thump on takeoff and sometimes coming to a stop it late shifts to one and bump s. Sometimes when I come to a full stop and let off the brake, it bumps. I have had it in 3 times now. No changes.

[/QUOTE]

I enabled the gear display on Day #2 with the truck I'm pretty sure I see it at 3 and then 1. I will try to pay more attention to it. It's definitely only having a slight thump when coming to a stop, not when starting off or just sitting still. I've got the 3.92s as well.

-John

This isn't 2-1 downshifting that some of us are talking about, I've been in several vehicles with the ZF8, and not just FCA models. Your transmission should be in first gear after being stopped for several seconds, which is when this bump is happening for some of us. My dealer found a problem with the slip yoke binding on the drive shaft.

The symptoms are basically a bump or jolt feeling after coming to a stop, and releasing the brakes. Sometimes it happens when you accelerate after stopping. You can come to a stop smoothly, even wait a whole light cycle, and boom - as soon as you let off the brakes, something jolts you forward. It's the driveshaft coming unbound and sliding back to its neutral state. It's a problem that's been around for decades, and can usually be fixed with grease on the driveshaft slip yoke splines. My dealer has decided to replace the entire shaft.

Several of the comments including the OP appear to be the slight bump when coming to a stop. This is why i clarified that a slight bump 2-1 when coming to a stop is completely normal for this trans. You can also experience a harsh shift or jolt when accelerating from a slight roll if you catch the truck between 2-1 downshift.

Your issue (accelerating after being stopped for a few seconds or after coming off the brakes) is entirely different than the 2-1 downshift bump many have referred to in the thread.

 

[niftyguy239]

This isn't 2-1 downshifting that some of us are talking about, I've been in several vehicles with the ZF8, and not just FCA models. Your transmission should be in first gear after being stopped for several seconds, which is when this bump is happening for some of us. My dealer found a problem with the slip yoke binding on the drive shaft.

The symptoms are basically a bump or jolt feeling after coming to a stop, and releasing the brakes. Sometimes it happens when you accelerate after stopping. You can come to a stop smoothly, even wait a whole light cycle, and boom - as soon as you let off the brakes, something jolts you forward. It's the driveshaft coming unbound and sliding back to its neutral state. It's a problem that's been around for decades, and can usually be fixed with grease on the driveshaft slip yoke splines. My dealer has decided to replace the entire shaft.

Any updates on this? Are you able to share the STAR case # so when I take the truck in for repair, I have all my geese in a row?

 

[HKP7PSP]

Any updates on this? Are you able to share the STAR case # so when I take the truck in for repair, I have all my geese in a row?

Hey friend, the dealer wouldn’t give me the case number unfortunately. The new driveshaft made things great for the first two days, but it’s back to doing the bump again - but it’s less severe than before. I’m on the road right now but it you search my posts, I shared the dealership work invoice with the details I did get.

 

[Neurobit]

Trust me I understand. The only reason I have been able to deal with this truck is because of the awesome service advisor I have. The fact that I live 4 miles from the dealership, and I have multiple vehicles. In between the recalls and other minor warranty work I have done. I really have lost confidence in this truck. My 04 Ram never had a transmission issue, and I'm at over 225K miles. I have only drained the transmission twice. Once at 100K and then again at 200K and its still shifts great.

Hi JM,

I'm in Houston as well. Sorry to hear about the issues with your truck.

If you could, please post your dealer experience on this thread, as we are compiling a list of good/bad dealers to help fellow forum members:

Dealer Service - Share your Experience!

I've been noticing many folks here being hesitant to take their trucks for service (even under warranty), which got me thinking... It would be great to have a list of the good dealers, and also a list of bad ones, so we can avoid them. I myself was apprehensive when my truck needed a few things...

5thgenrams.com

Thanks,

 

[JamMastaJ]

I’ve driven my truck for over a thousand miles now since the transmission was replaced. Unfortunately it is doing the same thing again. At this point it is becoming a safety issue for my family and I will be beginning the lemon law process. I’m pretty sure I’ll be buying another ram hoping the 2020’s are better built.

 

[Willwork4truck]

I’ve driven my truck for over a thousand miles now since the transmission was replaced. Unfortunately it is doing the same thing again. At this point it is becoming a safety issue for my family and I will be beginning the lemon law process. I’m pretty sure I’ll be buying another ram hoping the 2020’s are better built.

Really sorry to hear that. Hopefully a resolution to your satisfaction will occur. Seems strange that its twice now.

 

[whetrick1]

Really sorry to hear that. Hopefully a resolution to your satisfaction will occur. Seems strange that its twice now.

Yeah what’s the odds in getting a bad transmission to replace your bad transmission.


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[Willwork4truck]

Yeah what’s the odds in getting a bad transmission to replace your bad transmission.


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Real low, well except for Caravan minivan owners from the mid 90’s thru about 2002, and the Oddy owners around 99-03’...
I hope this doesn’t make you leave RAM, if you wait till the 2020’s then hopefully whatever issue is resolved. Ford trannies are complicated devils but reasonable longevity (10 spd).

 

[lasstss]

Any updates on this? Are you able to share the STAR case # so when I take the truck in for repair, I have all my geese in a row?

Tried a different dealer, got this new 2-1 flash update. Seemed good for a day or two. Now its back to the same old crap. Its intermittent. Sometimes feels like a drivetrain windup then release. Also get a slight rumble coming off idle. Im pretty fed up. The dealer wont do anything unless it throws a code. Meanwhile in traffic drive ability stinks. All of this happens below 20mph in traffic. Its like the trans doesn't know what to do. I drove a 2019 rental while working out of town. Buttery smooth. I think im stuck, I got a dog for $50k. Sent a letter to FCA. They cancelled the inquiry as the dealer says it fine. Total BS and lip service.
fwiw
Please do not hesitate to give us a call if you are still experiencing any issue and provide the following case number #58729818.

 

[Willwork4truck]

Not sure what to tell ya, patience or a differentdealer, keep pestering service and RAM cares.