Notices
V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters

Exhaust Leaks

Old 05-20-2019, 08:11 PM
  #1  
Pestam
Thread Starter
 
Join Date: May 2019
Location: New Jersey
Posts: 3
Default Exhaust Leaks

I just picked up a 2004 Ford Mustang v6 that already had an aftermarket dual pipe catback exhaust on it. The driver side exhaust header is cracked, and where the pipes meet in several places on the aftermarket exhaust it is leaking and is rusted over. I'm on a budget, so I'm replacing the manifold with another OEM one. I just took off part of the exhaust, and need advice on what the best repair would be. I don't know if I could just sand down the rust. The leaks are right in between the pipes:


Pestam is offline  
Old 05-21-2019, 02:18 PM
  #2  
Derf00
6th Gear Member
 
Join Date: Feb 2005
Location: AZ
Posts: 11,723
Default

When you say leaks are "right in between the pipes" you mean at the joints where the two pipes meet? You can sand/grind the the loose stuff off to get a smoother surface. Just don't go overboard. You can then use some high temp exhaust pipe repair putty to fully smooth out the uneven surfaces, then sandpaper the ends to smooth it out before reattaching the pipe. Think of the exhaust pipe repair putty to be something like JB weld but for higher temps. It won't hold forever but you can at least start saving up for a new exhaust system..

https://www.google.com/search?rlz=1C...30.sFJJ4mdxQb8
Derf00 is offline  
Old 05-22-2019, 03:33 PM
  #3  
Pestam
Thread Starter
 
Join Date: May 2019
Location: New Jersey
Posts: 3
Default

Alright, I'll try that. Do you think I could use a high temp paint to protect from future rust?
Pestam is offline  
Old 05-26-2019, 02:38 PM
  #4  
Pestam
Thread Starter
 
Join Date: May 2019
Location: New Jersey
Posts: 3
Default

For anyone wondering, I replaced the driver side exhaust manifold, sanded and painted the midpipe and back with high temp paint, and replaced all of the hardware. Works great, no more leaks.
Pestam is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jrspony
4.6L (1996-2004 Modular) Mustang
11
10-01-2006 08:19 PM
2004YellowStang
4.6L (1996-2004 Modular) Mustang
2
09-10-2006 05:50 PM
91lxstang
5.0L (1979-1995) Mustang
8
08-02-2006 04:37 AM
mustang_montana
4.6L (1996-2004 Modular) Mustang
11
01-21-2006 09:05 PM
87GT+70mach1
Pipes, Boost & Juice
6
02-01-2004 11:53 PM


Thread Tools
Search this Thread
Quick Reply: Exhaust Leaks


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.