• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Leaking Rear Main Seal.Crankcase pressure?

  • Thread starter Thread starter demononwheels
  • Start date Start date Feb 12, 2007

demononwheels

New Member
Jul 1, 2006
10
0
1
Texas
Feb 12, 2007
#1
  • Feb 12, 2007
  • #1
My rear main seal has been leaking for a while. The engine has around 6000 miles on it. So while the clutch was being replaced, the rear main seal was also replaced. That got done today. My car was delivered to my house today while I was at work. When I drove up to my house, I notice a spot of oil underneth the car. After being replace it still leaks. I think I have to much crankcase pressure. What can I do ? I have one breather on the passenger side valve cover. Every once and a while the dip stick will be pushed up from the pressure. Oh yea, I running around 14 psi of boost.
But not today. Not with the new clutch. Its a 1993 ford Mustang. 508 rwhp.
Any suggestions? I'm thinking I have to live with the oil leak.
 
You must log in or register to reply here.

Similar threads

S
Drivetrain 8.8 Pinion and 302 rear main seal leaks after replacing. 93 5.0 with t-5
  • Steigy4827
  • Jun 23, 2025
  • Fox 5.0 Mustang Tech
Replies
10
Views
657
Fox 5.0 Mustang Tech Apr 1, 2026
Steigy4827
S
Engine New Oil Leak Help.
  • Slo5Oh89
  • Mar 14, 2025
  • Fox 5.0 Mustang Tech
Replies
8
Views
594
Fox 5.0 Mustang Tech Mar 19, 2025
Slo5Oh89
Engine Oil leaking
  • greenflash79
  • Apr 1, 2026
  • 2007 - 2014 Shelby GT500 Tech
Replies
4
Views
174
2007 - 2014 Shelby GT500 Tech Apr 6, 2026
greenflash79
N
Edelbrock 1405 Setup
  • nathantaylor200
  • Nov 4, 2025
  • Classic Mustang Specific Tech
Replies
3
Views
234
Classic Mustang Specific Tech Nov 5, 2025
nathantaylor200
N
J
2004 Mustang 3.8L V6 vibrations above 65 MPH and differential leaks
  • joeybuddy96
  • Mar 16, 2026
  • SN95 V6 Mustang Tech
Replies
16
Views
538
SN95 V6 Mustang Tech Tuesday at 2:38 PM
joeybuddy96
J
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
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?