Yes, they still have my truck.
Solid copy on that, good advice. I will wait on them to tell me what is the problem and go from there.
10L80 - filled transmission at wrong temp???
- Thread starter jyi786
- Start date
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Solid copy on that, good advice. I will wait on them to tell me what is the problem and go from there.
BlaineBug
Full Access Member
Good luck on them narrowing it down the actual cause of fault with 100% certainty.
@NickTransmissions, another update from the dealership. As expected, you were exactly right.
GM TAC told them to start with the valve body (not just the TCC solenoid). If that doesn't work, they said to replace the torque converter. The issue for me? The work to replace the valve body is $2300, the TC is $2600. IF the valve body doesn't work out, and then I have to replace the TC, that's $5000.00. If I have to spend that much why not get a new transmission instead?
I have the dealership sending me a quote for all 3.
Based on your experience, what should I do? Should I just go ahead and proceed with what GM says? I don't want to be spending $5k if this isn't going to totally fix the problem.
Thanks!
GM TAC told them to start with the valve body (not just the TCC solenoid). If that doesn't work, they said to replace the torque converter. The issue for me? The work to replace the valve body is $2300, the TC is $2600. IF the valve body doesn't work out, and then I have to replace the TC, that's $5000.00. If I have to spend that much why not get a new transmission instead?
I have the dealership sending me a quote for all 3.
Based on your experience, what should I do? Should I just go ahead and proceed with what GM says? I don't want to be spending $5k if this isn't going to totally fix the problem.
Thanks!
What does 'start with the valve body' mean in this context? Are they going to drop the valve body and vac test it to determine if the TCC valves mentioned above are worn and/or those circuits are not sealing properly? Or are they just throwing parts at it to see what sticks?
This is why I do all my own work on stuff...Sounds like this dealership is either clueless or trying to take your money. I'd get a second opinion at this point, seems like they want to just bolt crap on without any regard for whether it's the right thing to do or not...Replacing the VB and TCC (the new VB assembly will actually have all new solenoids/etc thus the higher cost) but if that doesn't work, does that mean the brand new valve body and TC that you'd hypothetically pay for get tossed with the existing transmission if it turns out you need a new one because the TCC failed, maybe damaging the pump and sent contaminant throughout the unit?
Yes, GM TAC told the dealership to replace the valve body.
Apparently they sent the results to GM, and after looking at the graphs from the scanner logs, told them that's what they should do. I do not believe they did any actual diagnostic; they are simply sending this info to GM TAC. This isn't the same transmission, but the following service bulletin is the kind of guidelines GM has for these issues. See NHTSA link.
You are thinking exactly what I was, and so I will ask the dealership about it, because if the TC is bad, and I put in a new valve body, it's going to contaminate it and it will need to be replaced AGAIN.
Edit: just confirmed with the dealer. They said this is how it works.
1. Change valve body.
2. If it doesn't resolve concern, move onto TC.
3. If (and only if) TC is found to be sending contaminants through system, and new valve body was installed, new valve body will ALSO be replaced free of charge since it was already paid for in step 1.
So essentially, they will replace the new valve body if TC is indeed bad without me having to pay twice for it.
1. Change valve body.
2. If it doesn't resolve concern, move onto TC.
3. If (and only if) TC is found to be sending contaminants through system, and new valve body was installed, new valve body will ALSO be replaced free of charge since it was already paid for in step 1.
So essentially, they will replace the new valve body if TC is indeed bad without me having to pay twice for it.
On what basis are you going to replace it? Do you have the necessary vacuum testing equipment to test the individual apply circuits in the valve body?
Stop trying to throw parts at it before you determine if the valve body is the problem...Understand that GM's TAC takes a balancing of the interests approach when it comes to their recommendations which may or may not be inclusive of your interests only. They weight the amt of overhead, including tech/admin time, costs, etc against cost efficiency goals to arrive at a recommendation. In this case, that translates to, "it must be the valve body and solenoids based on the scan tool data which is sufficient for us to take the next step". What you're not understanding is whether or not the VB/Solenoids are the actually cause, one of the causes or not...Maybe it's bad, maybe it isnt but the TCC is slipping so for them, it's easiest in the short term to just replace those two things first....if it doesn't fix the problem, they have no issues telling you that you also need a torque converter and it's going to cost X dollars to do that...now you're into it for over $4,000, which is only a grand away from a whole new transmission...
See the pattern here?
I do, that absolutely is clear.
I've asked them to send me the error codes they said they were seeing, as well as any graph outputs that would aid me in making a decision.
I also got a second opinion, and to change those two components, the cost was almost equal between the dealer and this other shop, which is apparently highly reputable. $5k is the amount.
FWIW, a new transmission is $13k, from the dealer. The transmission shop I spoke to that gave me the second opinion, stated that it's difficult if not impossible for THEM to do a rebuild because they just don't have the experience with it.
