Hopefully everything goes well.Chevrolet TSB 18-NA-355 Make: Chevrolet Number: 18-NA-355 Date: Title: Shake And/Or Shudder During Light Throttle Acceleration Between 25 And 80 Mph (40 And 128 Km/H) At Steady Speed Models: So, I am just going in to have them do a flush and pay the 250 bucks for it. If they dont, then I’m wasting a lot of time and money by the whole process. To me, that seems like I am not covered here In the TSB.Īnd even if I was covered in the TSB and covered in the warranty, I still have to go through the pain in the ass of them trying to “feel or detect” the shudder. The dates are simply listed as 2017 to 2019. They told me that they would have to replicate the problem no matter what.Įverything I have read says “Diagnosis beyond the customer complaint is not required if the vehicle was built prior to production dates indicated above” AND I have talked to 3 dealers in the area and only one really knows what they are doing. I have searched high and low for the exact wording to be able to show the dealership that they dont need to diagnos. I am taking mine in tomorrow for the flush. I have a slight shudder that started a couple weeks ago. I may have been lucky, or I have headed them off with PM. When you change fluids with fresh, you FEEL the difference! Just do it! When you see the fluids that come out after 25K, and especially after break-in, they're NASTY! SLUDGE! For them even GM claims the ATF fluid is good for what, the life of the truck? For you guys, buy a Honda and weld the hood shut. I know, a lot of ppl buy a vehicle based on advertised low maintenance and reliability because they don't want the hassles of fixing stuff. I plan to continue doing ATF changes every 25K as long as I can.īecause I believe this transmission REALLY likes clean ATF. I changed the trans fluid with 6 qts of blue label, because that's what was available then, at 5K and then another 6qts 25K later, and so on. Since I was already been aware of the shudder issue, I drove the 500 for break-in then started fluid changes. I got my 2018 (9/17) in March 2018 with 7 miles on the clock. But I intend it to be helpful so its not really a troll. Shouldn't be difficult either way, and if it is you should find another dealer. It's all semantics unless they start barking about who is paying (very uncommon). However, I did see that they put a few miles on it before and after to make sure. My service tech said no problem, they were well aware of the issue and just went ahead with the flush. Seems like service departments that have flushed a lot of them are more likely to just take your word for it and go ahead no questions asked. That being said, it's up to the individual dealer as to whether or not they interpret the TSB the same way, or if they feel the need to test regardless. Trucks built after that already have the new Mobil 1 fluid, so they would need tests to see if they worse problems. From that version, it doesn't appear that the diagnostics or picoscope analysis are necessary any longer, just the customer complaint for anything built before March 2019. I believe the one dated August 2019 is the most recent, with the last revisions in July, unless someone has found one that's even more recent. We've linked to so many versions of TSBs it's easy to be looking at one when you think it's the other.
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