I missed that. Explain it then.
The diagnostics capabilities of the these trans are high tech. If any electronic part failed or any slipping was occurring it would have set a dtc. Obviously, none were set or you would have seen a ses light.

My question is: when you demonstrated this obvious fault to the shop foreman, his response was what?
If you could not duplicate the fault; how do you fix it? Unfortunately, if the shop can't duplicate it, it falls on you to demonstrate the concern.


I'm sure there are fault dtc set at this point.


Definitely, go buy a Hyundai. Their warranty in no different. They can't do warranty repairs if no fault is present either.

 

i really don't need to explain but in short i demonstrated them the initial "shutter" when the car shifted and the lead trans tech agreed he could feel it but that it was "normal". when i told him out of the 5 gm rental cars i had been given due to various repairs only mine did this (and one of the rentals was the same impala trim i had) he said there was nothing they could do. OF COURSE! i knew it was only a matter of time. and yes there warranty are no different as far as what is replace but 10yrs/100000 miles sure is different. and the fact the trans wont take a **** on me at 80k miles and if it does its covered lol GM LOST A CUSTOMER AND IVE ALREADY DISSUADED A FRIEND NOT TO BUY A $50K GM TRUCK HAHA this is only the beginning

 

You are as bad as many of today mechanics, "if there is no code, than nothing could possibly be wrong" Just because there is no code does not mean nothing could be wrong. The codes that are given are programmed by engineers and there is not a code for every possible issue. The computer can only see what it is programmed to see. The problem with most mechanics today is that they have lost the art of troubleshooting an issue. If the computer does not tell them that there is a problem that is all they know.

All that has changed in a modern automatic transmission is that the old style mechanical valve body has been replaced with various solenoids that the computer can control. Unlike an engine, a transmission does not have as many sensors that monitor every function of it's operation like the engine does. It does not know if clutch material is wearing prematurely, it does not know the pressure of every fluid pathway in trans. If you look at a list of all the Transmission DTC Codes, they are rather vague in their descriptions and not nearly indicative of a specific problem as the engine codes.

A good mechanic should be able to troubleshoot issues and not rely on the computer as the holy grail of diagnostics. To say we can not do anything until a code has been set is BS. It is just showing how poorly trained the mechanic is. The overall mechanical function of an automatic transmission has not really changed that much over the years, clutch packs and planetary gear sets are still used. Mechanics were able to diagnosis issues long before computers made there way into vehicles.

 

that is only half of what I said. maybe you can't read; the part where I mention test driving and verifying the concern.


if there are no codes and no drivability concerns when the tech test drive it after multiple extended test drives what would you do? tearing it down and hoping to find something is not the ticket. We have foremen drive cars for days sometimes to try to duplicate these concerns.


WRONG. the modern trans does know the trans is slipping as it monitors slip rates and shift timing. that is the purpose of shift adapts and failsafes to increase line pressure. modern trans post very specific descriptors suffix's after the dtc that give very specific information as to the nature of the fault setting a dtc. The modern trans has numerous pid's to monitor that give plenty of information about trans operation when dtc's aren't set and a drivability problem has been verified. Butwhat do I know...I am just another bad technician who knows nothing about what I do all day and you are an internet blogger.


I liked it when you explained to me the operation of modern transmissions...hilarious.

 

this used to be a great repair forum; the forums original purpose. now its just a posting board for complaints. People who post for advice make the forum work. people who post to whine because there 8 year old car isn't fixed for free make this forum unusable.

 

Please tell me what has changed in a transmission mechanically since the days of pre-computer control aside from the lack of a valve body and the addition of solenoids to replace it. Once again, the computer will only report malfunctions it is designed to look at and it's not programmed to look for every possible problem or scenario. The only code I have found that relates to any type of slippage is a P1870, and a extremely complex set of circumstances needs to be in play to set this code.

If you read his last post, he did demonstrate the issue and was told to pound sand. Most dealers these days are too lazy to trouble shoot anything until it either shows as a gross & obvious issue or becomes a complete failure when it is under warranty (dealer does not want his warranty rate to be too high), after warranty they will gladly take your money to fix anything. He complained about it during warranty and dealer took no action. Now out of warranty all they want is his cash. Next they will probably try to say he abused it.

 

I did read his last post. It took numerous posts to finally get that information. I not saying it didn't happen, I wasn't there, I didn't drive the car. No one at this point knows what is wrong with the trans so its pure speculation if even the first complaint is related to the failure.

 

I did in my last post. do I need to repeat it. EVERYTHING that controls transmission operation has changed. Therefore so has diagnosis. If you have a specific trans question I will gladly address it.
if p1870 is the only information you can find; you definitely do not have the proper information database.

 

Couldn't have said it better myself....as i said b4 the lead trans tech agreed he could feel the "shudder" but because no code and the trans appeared to be working there was nothing they can do. what a crock!

Yea, the 8 year old car i bought brand new for over $20k which i thought i would get more than 80k miles out've. Only person i see "whining" is you, i'm posting valid COMPLAINTS.

Again, couldn't have said it better myself.

Funny......tech at the dealer said the same thing. You must be a GM mechanic lol. No wonder your so butthurt....you know there as crooked as i say they are but have no choice but to defend them lol shall i post the THOUSANDS of other transmission problems with the 4T65E? I guess they're just whining too?

 

you didn't come here for a fix...just to complain about gm. Which is fine but there is another side to the story other than your unbiased, uninformed opinion. I figured you might want an opinion from someone who has actually had a transmission apart.

I have a 4L65HD trans in my car. The 260hp engine is more than capable of destroying it but its still original at 212000. Maybe the difference is I service it and don't drive like an a-hole. I figure your sound like one so you must drive like one too. Sad thing is your trans may have been ok if you just serviced it one time.

I've worked for Asian and domestic brands and customers have the same complaints regardless of what they buy.

When you Hyundai goes for a crap under warranty, the tech will tell you the same story...no fault found...as we are all crooks right. Flame on.