• Mustang Forums
  • 2015 - 2023 (S550) Mustang -General/Talk

Mustang mk6 v6 strange leak

  • Thread starter Thread starter reme24
  • Start date Start date Mar 18, 2025
R

reme24

New Member
Mar 18, 2025
1
0
1
Italy
Mar 18, 2025
#1
  • Mar 18, 2025
  • #1
Hello everyone! I own a 2017 Mustang V6 with 90,000 km and a 6-speed automatic transmission. I've been using it for a month and it's perfect on the road, but it has two issues.

The first one, which is less concerning, is a "metallic rubbing" noise coming from the transmission when it's under stress, when downshifting with engine braking, or when the car is pulling. I thought it might be the torque converter, but it shifts well and never slips, so I'm not sure. I'll be doing a transmission fluid change soon and I hope that will fix it.

The second issue I noticed after getting the alignment and suspension checked is a very small leak of some fluid from under the transmission (it doesn't leave stains in the garage, so I think it might only leak while driving, maybe under stress). I can’t identify the fluid; it just looks very clean. Following the "trail," it almost seems like it's coming from a manifold.

One more thing to mention: sometimes the transmission feels a bit jerky when it's in D (Drive) and not in S (Sport) while trying to shift at low RPMs, but I read that this is normal.

I’ll be taking it to my trusted mechanic next week, but I'm trying to gather as much information as possible beforehand. Thanks a lot, everyone! (All fluid levels are excellent, they warm up properly, and the car has no other symptoms).
 

89ripper

Founding Member
Jun 3, 2002
926
308
103
Rockford, Illinois
Mar 26, 2025
#2
  • Mar 26, 2025
  • #2
So did you have your transmission fluid changed yet? Has your mechanic looked at this yet? Here's a bump
 
You must log in or register to reply here.

Similar threads

M
85 Capri 5.0 transmission rattle
  • Mamaclean
  • May 2, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
2
Views
196
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 17, 2026
Mamaclean
M
S
Drivetrain Downshifting from 3rd to 2nd issue
  • Scott_S
  • Apr 23, 2026
  • Fox 5.0 Mustang Tech
  • 2
Replies
24
Views
937
Fox 5.0 Mustang Tech Jun 14, 2026
Mindseye007
C
1992 LX 2,3, automatic problems, oil dissapears.
  • Carpimp
  • Aug 10, 2025
  • 2.3L (N/A & Turbo) Tech
Replies
2
Views
249
2.3L (N/A & Turbo) Tech Aug 10, 2025
General karthief
H
Issue with transmission only in S mode after MPT tune, 2014 Mustang 3.7
  • haideralrustem
  • Dec 5, 2025
  • 2005 - 2014 Specific V6 Tech
Replies
1
Views
346
2005 - 2014 Specific V6 Tech Dec 13, 2025
Noobz347
Mustang II 4 cyl gear hunting and possibly messed up vacuum system
  • oesterreicher
  • May 31, 2026
  • 1974 - 1978 Mustang II Talk & Tech
Replies
11
Views
422
1974 - 1978 Mustang II Talk & Tech Jun 14, 2026
manicmechanic007
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 2015 - 2023 (S550) Mustang -General/Talk
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?