Sponsored

2018 10speed 4-3 downshift clunk

Mad

Member
Joined
Feb 14, 2022
Threads
8
Messages
15
Reaction score
0
Location
Texas
First Name
Max
Vehicle(s)
2018 Mustang GT 10 speed
So i have been dealing with this issue for awhile since i have owned the car 8 months. Transmission not overheating warming up normally. But sometimes intermittent but will happen every drive to work about a 8min drive my 4-3 downshift you can literally feel it in your feet almost feels like a bump a very clunky downshift. Havent got the transmission fluid checked for debris or level or wear. But i did take vehicle in they updated it to latest tcm software drove it and said everything was good. Update not covered by powertrain but still took it in under powertrain. Sometimes after a cold start i will get some transmission flare in early shift 1-3 3-4. Which is normal from what i have been told. Should i be worried about these very obvious clunky downshifts sometimes or just enjoy the car. WOT perfect shifting and perfect downshifting when braking hard its only when doing normal city coming to a stop braking.
Sponsored

 

FinitePrimus

Well-Known Member
Joined
Mar 24, 2021
Threads
2
Messages
150
Reaction score
183
Location
Toronto
First Name
Derek
Vehicle(s)
2021 Mustang GT Premium Convertible
Mine does the same in sport mode when it's cold (first 10-15 minutes of driving). I chalk it up to the transmission being cold.
 
OP
OP

Mad

Member
Joined
Feb 14, 2022
Threads
8
Messages
15
Reaction score
0
Location
Texas
First Name
Max
Vehicle(s)
2018 Mustang GT 10 speed
@FinitePrimus yeah mines mainly does it in normal once it warms up so i have no idea but after I disconnect the battery to reset everything it seems to not do it for a little bit
Sponsored

 
 








Top