Need some advice....8 speed GMC Transmission Problem

doubledge

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After reading all of this it just reaffirms my belief that the vast majority of pickup truck are over priced for what they are really worth. This is why the manufacturers are making a killing on them.
 

Deacon

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Well, there are two reasons manufacturers are producing so many trucks and SUVs: 1) people want them and 2) they have much higher profit margins for manufacturers than small cars and sedans. People will pay WAY more than they should ever be worth. I priced out a new 2017 F250 a couple of years ago, and even at X Plan pricing, the one I wanted (well featured but not the highest end) was going to be $63k with a gas engine. I paid $47k for the diesel F250 I bought new in 2011 and thought it was insane! They're making a killing on each unit relative to, say, Focus sales, but it has very little to do with these transmission issues.
 

Gunney57

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Well, there are two reasons manufacturers are producing so many trucks and SUVs: 1) people want them and 2) they have much higher profit margins for manufacturers than small cars and sedans. People will pay WAY more than they should ever be worth. I priced out a new 2017 F250 a couple of years ago, and even at X Plan pricing, the one I wanted (well featured but not the highest end) was going to be $63k with a gas engine. I paid $47k for the diesel F250 I bought new in 2011 and thought it was insane! They're making a killing on each unit relative to, say, Focus sales, but it has very little to do with these transmission issues.
The craziness of the pricing is truly astounding. Last year the local Ford dealer didn't have a single F150 on the lot under $50k. Chevy Suburbans for $75-$85K. Used to buy new trucks, not anymore...
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With the margins on trucks they could fix the issues, ya think?
 

romclean

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Just trade that sucker in and get the ford raptor you mentioned earlier.
 

Logan T

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Just trade that sucker in and get the ford raptor you mentioned earlier.
My truck trade in is like 43k the Raptor is 59k... Pretty big loss when I was trying to keep my truck forever
 

romclean

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Werent you thinking about going f/i with that 5.3? Maybe $10-12k in savings..
 

Logan T

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Yeah I agree a Raptor is a better choice and will be a lot more fun and power I'm looking for. Eventually I was going to do a lot more stuff to this truck but if I keep it and have to go in for warranty work all the time and I do all of this stuff to it at some point they're going to want to investigate and stop trying to service my vehicle under warranty.
I'm going tomorrow to look at it tomorrow and really see the numbers. I'm ready to take the loss but I hope it all works out. I feel like trading it in will be a lot easier as well. The dealership I'm going to is just ridiculous. They're telling me that it's normal and to let them truck warm up for 5-10 minutes but when I ask them to put that in writing for me they won't. The second service they forgot to unplug my dash cam and for 6 hours they had my truck and not once did anyone look at it. Top service advisor didn't even care just said he'll look into it. He said his GMC Yukon does that but you get "used" to it.
 
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knight_man

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Yeah I agree a Raptor is a better choice and will be a lot more fun and power I'm looking for. Eventually I was going to do a lot more stuff to this truck but if I keep it and have to go in for warranty work all the time and I do all of this stuff to it at some point they're going to want to investigate and stop trying to service my vehicle under warranty.
I'm going tomorrow to look at it tomorrow and really see the numbers. I'm ready to take the loss but I hope it all works out. I feel like trading it in will be a lot easier as well. The dealership I'm going to is just ridiculous. They're telling me that it's normal and to let them truck warm up for 5-10 minutes but when I ask them to put that in writing for me they won't. The second service they forgot to unplug my dash cam and for 6 hours they had my truck and not once did anyone look at it. Top service advisor didn't even care just said he'll look into it. He said his GMC Yukon does that but you get "used" to it.
Call GMC corporate and start asking questions and complaining. Had to do this to get a RECALL service done at a local dealer. End of the day I had a rental car and recall work performed. Still left a bad taste, sold the car. Had a few rentals from the bowtie brand over the last few years. I don’t ride Chevy anymore.
 

GotWake

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Well, there are two reasons manufacturers are producing so many trucks and SUVs: 1) people want them and 2) they have much higher profit margins for manufacturers than small cars and sedans. People will pay WAY more than they should ever be worth. I priced out a new 2017 F250 a couple of years ago, and even at X Plan pricing, the one I wanted (well featured but not the highest end) was going to be $63k with a gas engine. I paid $47k for the diesel F250 I bought new in 2011 and thought it was insane! They're making a killing on each unit relative to, say, Focus sales, but it has very little to do with these transmission issues.
I don’t know how many people drop $80k for these trucks. I told the the guy when I bought my Yukon XL Denali that the moment I don’t need this size of a vehicle, I would be going Merc/BMW/Audi route when you get up in that price range.
 

Gunney57

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I don’t know how many people drop $80k for these trucks. I told the the guy when I bought my Yukon XL Denali that the moment I don’t need this size of a vehicle, I would be going Merc/BMW/Audi route when you get up in that price range.
I'm not sure that works much better. Our company lived in Sprinter hell for 4 plus years. The most expensive fleet cost years we ever had by almost 40%. Parts cost was insane....
 

LeoGetz14

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@Logan T sorry for all your troubles with your Sierra Denali. My 2015 All Terrain 6.2 had the 8 speed "shudder"issue at around 10K miles along with the hard clunking shifts at low speeds. Took it in and they reprogrammed the transmission control module which was of no help. They replaced the torque converter at 12,700 miles and flushed and replaced the transmission fluid. At about 18,500 miles the "shudder" returned and this time they drained and filled with a new updated transmission fluid per a tech bulletin. Happy to report the last 20K miles the shudder has not returned. From what I gather there is a new Mobil 1 "Blue Label" transmission fluid that eliminates the problem with shuddering.
The clunking shifts are another matter. Mine actually improved some when they swapped out the rear blocks with larger ones when I had a leveling kit put on. Perhaps they tightened the heck out of the spring clamps which helped out.
:bravo:
I manually put the transmission in M7 and feel it reduces the laggy feeling by eliminating 4 cylinder mode. My experience led me to purchase an extended GM warranty from James Black Cadillac.
Forgot at 25,690 miles had the #7 cylinder lifter failure issue as well.
 
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knight_man

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@Logan T

Hey any update on this?

Did you get a Raptor!? Think there used to be a Veloci Raptor that was supercharged. ;)

I think Ford got a lot of the kinks worked out of the newer Raptors (some odds and ends, bending frames)
 

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