Another EDiff issue, Vin #2282
Thread Starter
Instructor
Joined: Jul 2013
Posts: 172
Likes: 2
From: Allen TX
Another EDiff issue, Vin #2282
So my car arrived this morning (Z51 Auto 2LT TR), I was so excited to finally take delivery. They started unloading it around noon but I had to go to a golf tourney and could't watch.
I was on my way back to the dealer around 5pm when the salesman said it failed PDI. Apparently during the test drive, they heard banging, buzzing, and hissing coming from the rear diff. They had already checked it for oil so that was not the issue. They talked with Detroit and their best guess is that it is the EDiff control module. They are sending one but I won't get my car until Monday now, assuming that is the problem. I'm very disappointed but I'm glad the dealer caught it before I took delivery and more damage was caused. The car has 13 miles on it was was just built on the 27th, and was never put on QC hold.
I know this is a new car and being one of the first to buy one means dealing with these kind of issues.
I'm still very excited and am confident that Chevy will make fixing my car a top priority.
One a happy note, here are some pics.
I was on my way back to the dealer around 5pm when the salesman said it failed PDI. Apparently during the test drive, they heard banging, buzzing, and hissing coming from the rear diff. They had already checked it for oil so that was not the issue. They talked with Detroit and their best guess is that it is the EDiff control module. They are sending one but I won't get my car until Monday now, assuming that is the problem. I'm very disappointed but I'm glad the dealer caught it before I took delivery and more damage was caused. The car has 13 miles on it was was just built on the 27th, and was never put on QC hold.
I know this is a new car and being one of the first to buy one means dealing with these kind of issues.
I'm still very excited and am confident that Chevy will make fixing my car a top priority.
One a happy note, here are some pics.
Team Owner
Joined: Sep 1999
Posts: 41,732
Likes: 1,718
From: Springfield MO
I understand the E diff is GM's design, but they may have contracted with another company to build it.
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Thread Starter
Instructor
Joined: Jul 2013
Posts: 172
Likes: 2
From: Allen TX
Thanks for the nice comments.
Do you think there will be any long term issues from all the banging? I wasn't there to hear it like I said, but it seems that can't be good for the differential. I'm guessing one of the rear wheel speed sensors is off and the ediff thinks it is always slipping and thus locking the Ediff. I guess I'll find out more on Monday.
Do you think there will be any long term issues from all the banging? I wasn't there to hear it like I said, but it seems that can't be good for the differential. I'm guessing one of the rear wheel speed sensors is off and the ediff thinks it is always slipping and thus locking the Ediff. I guess I'll find out more on Monday.
Pro
Joined: Sep 2008
Posts: 635
Likes: 0
From: NY
Hissing sounds from the ediff can be the normal key on purge of air in the hydraulics.
Not saying everything is fine, I haven't seen the car, but for what it's worth the e-diff cannot damage your rear end. Just FYI.
Not saying everything is fine, I haven't seen the car, but for what it's worth the e-diff cannot damage your rear end. Just FYI.
Drifting
Joined: Jun 2013
Posts: 1,764
Likes: 10
From: Cumming GA
On order: Torch Red Z51
I've owned over 100 cars lifetime. While in the business I spent 8 years with Porsche and Audi back in the late 70's and into the 80's. Then several with Acura until I went back into the Navy. Altogether 20 years and saw some good factory backing on new models but the way GM is pulling all the stops to satisfy customers with severe issues is the best I've seen.
I'm sorry you're having your issues but glad you understand and know GM has got your back. Mine spent this week at 3400 so hopefully she'll go to 3800 rolling down the line next week and arrive ready to consume some dyno fuel
. Same color as yours with an A6 and 2lt in Kalahari.
Good luck and hope to meet up with you on a caravan or at the museum some day.
I'm sorry you're having your issues but glad you understand and know GM has got your back. Mine spent this week at 3400 so hopefully she'll go to 3800 rolling down the line next week and arrive ready to consume some dyno fuel
. Same color as yours with an A6 and 2lt in Kalahari.Good luck and hope to meet up with you on a caravan or at the museum some day.
Race Director
Joined: Jun 2005
Posts: 10,909
Likes: 2,701
From: Phila Suburbs 2023 C8 & 2013 650ix
It wasn't the control module that was "banging, buzzing, and hissing." It was the mechanical parts making the noise and that's never good. If that brings it back to normal, I'd closely monitor it and look for any unusual sounds that it makes. Worst case you end up with a warranty repair. Don't mod.
Thread Starter
Instructor
Joined: Jul 2013
Posts: 172
Likes: 2
From: Allen TX
I've owned over 100 cars lifetime. While in the business I spent 8 years with Porsche and Audi back in the late 70's and into the 80's. Then several with Acura until I went back into the Navy. Altogether 20 years and saw some good factory backing on new models but the way GM is pulling all the stops to satisfy customers with severe issues is the best I've seen.
I'm sorry you're having your issues but glad you understand and know GM has got your back. Mine spent this week at 3400 so hopefully she'll go to 3800 rolling down the line next week and arrive ready to consume some dyno fuel. Same color as yours with an A6 and 2lt in Kalahari.
Good luck and hope to meet up with you on a caravan or at the museum some day.
I'm sorry you're having your issues but glad you understand and know GM has got your back. Mine spent this week at 3400 so hopefully she'll go to 3800 rolling down the line next week and arrive ready to consume some dyno fuel
. Same color as yours with an A6 and 2lt in Kalahari.Good luck and hope to meet up with you on a caravan or at the museum some day.
Melting Slicks
Joined: May 2010
Posts: 2,674
Likes: 142
From: Aubrey Texas
sweet very nice man i was hoping to pass you this weekend. am sure it will not be a problem once they fix it. one good thing is we can drive them year round here. I know some people will have them put up. hope to see you at some club events.
nice color combo, first i have seen in texas.
nice color combo, first i have seen in texas.
Thread Starter
Instructor
Joined: Jul 2013
Posts: 172
Likes: 2
From: Allen TX
sweet very nice man i was hoping to pass you this weekend. am sure it will not be a problem once they fix it. one good thing is we can drive them year round here. I know some people will have them put up. hope to see you at some club events.
nice color combo, first i have seen in texas.
nice color combo, first i have seen in texas.
Club event.
Heel & Toe
Joined: Sep 2010
Posts: 17
Likes: 0
From: west palm beach florida
[QUOTE=pookie;1585083415]So my car arrived this morning (Z51 Auto 2LT TR), I was so excited to finally take delivery. They started unloading it around noon but I had to go to a golf tourney and could't watch.
I was on my way back to the dealer around 5pm when the salesman said it failed PDI. Apparently during the test drive, they heard banging, buzzing, and hissing coming from the rear diff. They had already checked it for oil so that was not the issue. They talked with Detroit and their best guess is that it is the EDiff control module. They are sending one but I won't get my car until Monday now, assuming that is the problem. I'm very disappointed but I'm glad the dealer caught it before I took delivery and more damage was caused. The car has 13 miles on it was was just built on the 27th, and was never put on QC hold.
I know this is a new car and being one of the first to buy one means dealing with these kind of issues.
I'm still very excited and am confident that Chevy will make fixing my car a top priority.
One a happy note, here are some pics.
Mine failed the PDI too. It needed a software update or reload for the EDIFF
All better now
I was on my way back to the dealer around 5pm when the salesman said it failed PDI. Apparently during the test drive, they heard banging, buzzing, and hissing coming from the rear diff. They had already checked it for oil so that was not the issue. They talked with Detroit and their best guess is that it is the EDiff control module. They are sending one but I won't get my car until Monday now, assuming that is the problem. I'm very disappointed but I'm glad the dealer caught it before I took delivery and more damage was caused. The car has 13 miles on it was was just built on the 27th, and was never put on QC hold.
I know this is a new car and being one of the first to buy one means dealing with these kind of issues.
I'm still very excited and am confident that Chevy will make fixing my car a top priority.
One a happy note, here are some pics.
Mine failed the PDI too. It needed a software update or reload for the EDIFF
All better now
Burning Brakes
Joined: Jul 2003
Posts: 846
Likes: 1
From: Burbank Califorina
It is so nice to see GM stepping up the game, as the C7 is just stunning. I can not wait for the next Z07 or whatever they call
it... just love the Blue... the Red is not so bad tho....
Garry
it... just love the Blue... the Red is not so bad tho....
Garry