Is this normal?
Thread Starter
Instructor
Joined: Nov 2014
Posts: 203
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From: South Hadley/Boca Raton MA/FL
Is this normal?
Yesterday on a 60 mile run on a relatively flat highway I noticed the tach wavering up and down 100 RPM, could actually feel and hear it. thought it might be me, so then engaged the cruise control, with the same result.
With the best 50 mile mileage screen I notice it bumps up and down 2 bars with the tach. It's a Z51 with 22K miles and I've never noticed it before. It needs an oil change in the next 2 weeks, along with the software for the airbag recall, should I have the dealer looking for something? Thanks
With the best 50 mile mileage screen I notice it bumps up and down 2 bars with the tach. It's a Z51 with 22K miles and I've never noticed it before. It needs an oil change in the next 2 weeks, along with the software for the airbag recall, should I have the dealer looking for something? Thanks
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From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
Yesterday on a 60 mile run on a relatively flat highway I noticed the tach wavering up and down 100 RPM, could actually feel and hear it. thought it might be me, so then engaged the cruise control, with the same result.
With the best 50 mile mileage screen I notice it bumps up and down 2 bars with the tach. It's a Z51 with 22K miles and I've never noticed it before. It needs an oil change in the next 2 weeks, along with the software for the airbag recall, should I have the dealer looking for something? Thanks
With the best 50 mile mileage screen I notice it bumps up and down 2 bars with the tach. It's a Z51 with 22K miles and I've never noticed it before. It needs an oil change in the next 2 weeks, along with the software for the airbag recall, should I have the dealer looking for something? Thanks
Elmer
Thread Starter
Instructor
Joined: Nov 2014
Posts: 203
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From: South Hadley/Boca Raton MA/FL
I tried to search the symptoms but couldn't find anything, was wondering that myself, but it performs flawlessly otherwise. Smooth clean shifts, no shuddering or anything like that whether running in manual or automatic modes. Maybe a hard shift or two when cold but otherwise good.
Thread Starter
Instructor
Joined: Nov 2014
Posts: 203
Likes: 88
From: South Hadley/Boca Raton MA/FL
Yes, sorry, it is a '15 A8 produced in March of 2015.
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
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From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
Le Mans Master
Joined: Nov 2015
Posts: 7,382
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From: Lake Havasu City Arizona
Sounds like this applies to you and the fix in almost all cases is a new torque converter.
PIP5337E:
And here is a link to all you need to know:
http://gm.oemdtc.com/6597/pip5337e-s...-chevrolet-gmc
PIP5337E:
And here is a link to all you need to know:
http://gm.oemdtc.com/6597/pip5337e-s...-chevrolet-gmc
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Pro
Joined: Jan 2014
Posts: 566
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From: Earleton Fl
Not normal
Yesterday on a 60 mile run on a relatively flat highway I noticed the tach wavering up and down 100 RPM, could actually feel and hear it. thought it might be me, so then engaged the cruise control, with the same result.
With the best 50 mile mileage screen I notice it bumps up and down 2 bars with the tach. It's a Z51 with 22K miles and I've never noticed it before. It needs an oil change in the next 2 weeks, along with the software for the airbag recall, should I have the dealer looking for something? Thanks
With the best 50 mile mileage screen I notice it bumps up and down 2 bars with the tach. It's a Z51 with 22K miles and I've never noticed it before. It needs an oil change in the next 2 weeks, along with the software for the airbag recall, should I have the dealer looking for something? Thanks
Long story short my local dealer and GM stood behind it. If you want the whole story PM me, and Ill give u my phone number and Ill give you all the details!
