Pages

Pages

Monday, November 7, 2016

Problems with failing automatic transmissions continue to turn ownership of Corvettes C7 Stingray, Grand Sport and Z06 into a nightmare, just like in the previous years

For two years now, this blog continues to point out problems related to flaws in the 8-speed automatic transmission.  As of now, and as expected in the greatest spirit of planned obsolescence, the problems with 8l90 transmission and associated software continue to plague the owners of the current generation of Corvette, with +General Motors doing absolutely nothing to rectify the problems that result in failure of the transmission within just a few thousands of miles.

The lack of real remedy outside of typical gimmicks like "updated transmission software" resembles the gimmicks surrounding the supercharger problems, throwing a bait at the owners in a form of a TALLER supercharger cover and ANGLING the cooling bricks.  Again, no real remedy in sight and customer service limited to fixing broken units, instead of offering an improved and working design.

In the typical GM fashion and just like with the infamous LS7 valve issue, the only remedy offered to the increasing number of C7 owners, with failed transmission consists of a replacement of the failed parts, using the exact same parts that caused problem in the first place, the torque converter, flex plate or the entire transmission altogether.

What is even more puzzling is the fact that the majority of the warranty repairs are either an ineffective fix or fail shortly afterwards, indicating that the problems related to the automatic transmission repairs lead to two possible scenarios:

1. Transmission problems may be an effect instead of the cause and another component in the car causes the transmissions to fail.

2. Supplied replacement parts are just as defective as the parts they replace.  Considering the increasing number of cars experiencing repeat failures, AFTER warranty based repairs, this may be exactly the case.

Kept away from the public knowledge is the fact that the engines continue to obliterate themselves, to further deepen the frustration of Corvette C7 ownership.

Again, this blog pointed out the shortcomings of 8l90 transmission long time ago, the problems with the design were obvious from the beginning and combined with the sloppy quality and truly shitty software operating these turds, this is nothing short of another recipe for C7 specific cluster fuck.

As usual, there is of course a quite painful process of having the dealer first acknowledge, then diagnose and finally, repair the transmission related problem.  Outside of reprogramming the transmission software, anything else is quite labor intensive and requires someone qualified at the dealership to recognize and diagnose the problem.  Owners of the cars with the problem consider themselves lucky if the dealership technician meets the first requirement.  The subsequent diagnosis is nothing short of pure guessing game, with solutions varying from failed torque converter, flex plate, transmission and interestingly, either AFM or rear end defects...

Needless to say, the attempts to rectify these problems go well beyond inconvenience for the car owners, the shortages of torque converters and transmissions are the order of the day and any repairs done in acceptable period of time are seldom exceptions to the otherwise severely delayed norm.

Certainly, a high price to pay for a claim of having a car with a competitive slush box, one that can outrun cars with manual transmission.


3 comments:

  1. There is no fix!!the whole dam car is JUNK!!

    ReplyDelete
  2. i have not had any real problems except for the US delay but car has 4800 miles only. its not a DC trans so thats normal.

    ReplyDelete
  3. the US delay is there. Having driven a bunch of porsche PDK and Ferrari Italia its not nearly as fast on US since this is still a TC. Those other cars are instantaneous when you shift. the DS seems much faster though the the US on the A8 transmission.

    ReplyDelete

Do you have any pic to share? Use this code [img]image-url-here[/img]