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2013 Cadillac ats 2.0T auto rpm spike and jerk
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Probee773
Novice
Feb 17, 2016, 7:04 PM
Post #1 of 13
(4520 views)
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2013 Cadillac ats 2.0T auto rpm spike and jerk
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I posted this video on youtube. If I'm coasting between 20 and 40 mph, and I gently push down on the gas to accelerate, the rpms spike and I feel a jerk. It happens in auto or manual mode, and I tested it in manual mode to make sure the car stayed in one gear to eliminate a shifting issue. Anyone else experience this? What could be causing this? Transmission issues? Torque converter issues?
https://youtu.be/fi1OXKF9qTw
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gsferraro
Veteran
Feb 18, 2016, 6:59 AM
Post #2 of 13
(4496 views)
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Re: 2013 Cadillac ats 2.0T auto rpm spike and jerk
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First thing to do is check your fluid level, are there any trouble codes present.
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Probee773
Novice
Feb 18, 2016, 7:39 AM
Post #4 of 13
(4490 views)
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Re: 2013 Cadillac ats 2.0T auto rpm spike and jerk
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...and no trouble codes unfortunately.
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gsferraro
Veteran
Feb 18, 2016, 9:34 AM
Post #5 of 13
(4483 views)
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Re: 2013 Cadillac ats 2.0T auto rpm spike and jerk
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Correct, this has to up on a lift to get checked, Question, if you drive this normally and let it shift up to 6th, do you feel anything? or is it only when coasting and then you accelerate again
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Probee773
Novice
Feb 18, 2016, 10:14 AM
Post #6 of 13
(4478 views)
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Re: 2013 Cadillac ats 2.0T auto rpm spike and jerk
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If I accelerate from 0 to 70 normally (or quickly), it shifts fine and I don't feel anything. It's only when I'm coasting from around 20 to 40 mph and begin accelerating again (driving in traffic, etc...). The interesting thing is, it is only noticeable when accelerating gently or normally. If I accelerate quickly, it downshifts and seems okay (I expect a slight jerk with the downshift).
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gsferraro
Veteran
Feb 18, 2016, 11:03 AM
Post #7 of 13
(4471 views)
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Re: 2013 Cadillac ats 2.0T auto rpm spike and jerk
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What about when the car is hot? drives same way
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Probee773
Novice
Feb 18, 2016, 11:06 AM
Post #8 of 13
(4468 views)
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Re: 2013 Cadillac ats 2.0T auto rpm spike and jerk
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Yes, does it cold or hot.
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gsferraro
Veteran
Feb 18, 2016, 4:37 PM
Post #9 of 13
(4456 views)
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Re: 2013 Cadillac ats 2.0T auto rpm spike and jerk
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Well, everything seems to be working the way it should, i would still have the fluid level checked. How many miles on your car? The only thing i can really think of is when you go for kick down, the computer is going to increase line pressure to hold the clutch on, that could be the jolt that your feeling.
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Probee773
Novice
Feb 19, 2016, 8:41 AM
Post #10 of 13
(4433 views)
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Re: 2013 Cadillac ats 2.0T auto rpm spike and jerk
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I made an appointment with a highly rated dealer in the area. Hoping for a solenoid issue. I'll keep you guys posted.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Feb 19, 2016, 9:50 AM
Post #11 of 13
(4429 views)
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Re: 2013 Cadillac ats 2.0T auto rpm spike and jerk
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? Are you sure you are off warranty on this vehicle? Drivetrains can be longer that bumper to bumper and worth a check,
T
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Probee773
Novice
Mar 7, 2016, 1:23 PM
Post #12 of 13
(4352 views)
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Re: 2013 Cadillac ats 2.0T auto rpm spike and jerk
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Fixed under warranty. Turns out the transmission control module had some settings that were off, so they reflashed it back to the factory settings, and we are all good now. 
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Mar 7, 2016, 2:23 PM
Post #13 of 13
(4342 views)
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Re: 2013 Cadillac ats 2.0T auto rpm spike and jerk
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Good news! I'll close this out as solved to keep spammer out and YOU can re-open just ask any moderator if you wish.
Solved,
T
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