2019 G70 Hard Shifting

[Sassen_Holla]

I've been having a problem recently where my G70 has been shifting very hard in between the gears, especially the lower ones - especially when shifting up. It's noticeable in all drive modes but SUPER noticeable in sport. Took it in to the dealership and they said it needed a tranny fluid flush and thats where they had to start before going any further even though it has the "lifetime" tranny fluid - it's still under powertrain warranty. I called 3 tranny repair shops and they all said that flushing/replacing the fluid won't help with the hard shifting and it was a waste of money, but I'm kind of stuck at an impass at the moment where the dealership won't go any further in diagnosing until the tranny is flushed.

Any thoughts what it may be?

Specs:
2019 G70 AWD 2.0T DYNAMIC
85k-90k Miles

POWERTRAIN TECHNOLOGY
· 2.0L i4 T-GDI (252 HP / 260 lb-ft)
· 8-speed Automatic Transmission with
Paddle-Shifters & Rev-Match
· Shift-by-Wire & Idle Stop & Go
· All-Wheel Drive
· Drive Mode Select with Custom Mode Setting
· Rack-mounted Motor-Driven Power Steering
· MacPherson Strut Front & Multi-Link Rear
Suspension
· 18-inch Alloy Wheels with Michelin All-Season
Tires (P225/45R18)
· Twin-Tip Exhaust

Has the elite, prestige, and dynamic packages (if it matters at all)

 

[Mikey91]

Please see jerky-auto-transmission-hard-downshifts-while-braking thread which talks about this problem and has many useful info that you can use

Update: after reading your post again, that may not be the same issue you're were having sorry, but it's worth looking there maybe you can find something useful.

 

[Sassen_Holla]

Please see jerky-auto-transmission-hard-downshifts-while-braking thread which talks about this problem and has many useful info that you can use

Update: after reading your post again, that may not be the same issue your were having sorry, but it's worth looking there maybe you can find something useful.

Hey Mikey, yeah I flipped through it and unfortunately, all of them were talking about the downshifting issues. I was hoping to find someone that posted about the same issue on here but I don’t think anyone else is having the same type of problem.

 

[M@19G70]

I've been having a problem recently where my G70 has been shifting very hard in between the gears, especially the lower ones - especially when shifting up. It's noticeable in all drive modes but SUPER noticeable in sport. Took it in to the dealership and they said it needed a tranny fluid flush and thats where they had to start before going any further even though it has the "lifetime" tranny fluid - it's still under powertrain warranty. I called 3 tranny repair shops and they all said that flushing/replacing the fluid won't help with the hard shifting and it was a waste of money, but I'm kind of stuck at an impass at the moment where the dealership won't go any further in diagnosing until the tranny is flushed.

Any thoughts what it may be?

Specs:
2019 G70 AWD 2.0T DYNAMIC
85k-90k Miles

POWERTRAIN TECHNOLOGY
· 2.0L i4 T-GDI (252 HP / 260 lb-ft)
· 8-speed Automatic Transmission with
Paddle-Shifters & Rev-Match
· Shift-by-Wire & Idle Stop & Go
· All-Wheel Drive
· Drive Mode Select with Custom Mode Setting
· Rack-mounted Motor-Driven Power Steering
· MacPherson Strut Front & Multi-Link Rear
Suspension
· 18-inch Alloy Wheels with Michelin All-Season
Tires (P225/45R18)
· Twin-Tip Exhaust

Has the elite, prestige, and dynamic packages (if it matters at all)

Mine was doing it, same model. I looked to see if anything was posted on here. Same thing, I put it in N and reved it up to around 5k for a couple seconds a few times and it seemed to help.
I guess a quick fix.

 

[Volfy]

2019 G70 AWD 2.0T DYNAMIC
85k-90k Miles

In this case, your dealer is correct. Even though it might not fix your problem, tranny fluid replacement would be a very good idea, before any further diagnostics. Your car is way overdue. Read your OM. It's 60k miles for "severe usage conditions", which most drivers encounter enough to qualify. Even if not, I'd rather err on the side of caution, if it were my car... especially if it is having shifting issues.

 

[Sassen_Holla]

Update on the issue:

My dealership did a tranny flush which was about $300. Car is still shifting hard with a thud (although its not as bad as it was - about half as bad). Dealerhsip told me that I need to give the tranny flush "time to work" for about 2-3 months. Only issue I have is that I'm going to be close to being out of warranty soon. I called multiple other dealerhips in my area to see if they would take a look at my g70 and they all said go where you bought it because we're busy until next year. Anyone have any recommendations?

 

[Volfy]

Again, your dealer is not necessarily wrong. Once transmission fluid breaks down, it starts forming carbon/sludge, which can cause problem with the myriad of solenoid valves and tiny the passages. The flush might replace the old fluid, but there might be carbon deposits/sludge build-up inside your tranny, which might take a while for the moving fluid to flush out and hopefully gets trapped in the filter (built into the pan). BTW, that is yet another reason you should not skip replacing the pan, even though it might seem like an unreasonable extra expense. Some folks might go so far as to change the fluid, but put the old pan (with the old filter inside) back in, run that for a while, before installing the new pan (with a clean filter). This way, the crap that gets flushed out is trapped by the old filter, not in the brand new one.

At this point, you already have a hard-shifting complaint on file, many months before the warranty expires. Hopefully, the service advisor has noted explicitly on the ticket that you should allow the new fluid to circulate for a period of time. That might cover you later, in case the problem never completely goes away.

FWIW... this is why we do early preventative maintenance... as much as it might seen anal to some folks.