4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Changing Midpipe

Thread Tools
 
Search this Thread
 
Old 03-25-2010, 09:20 AM
  #11  
K Z
2nd Gear Member
 
K Z's Avatar
 
Join Date: Feb 2010
Location: KY
Posts: 233
Default

This also reminds me that I have 2 do this again. My BBK o/r x is coming off 2 make way 4 my LT headers. I almost slipped my mind how fun this job was. Yes I'm just bragging
K Z is offline  
Old 03-25-2010, 11:05 AM
  #12  
KLeech
1st Gear Member
 
KLeech's Avatar
 
Join Date: Feb 2010
Location: Indiana
Posts: 64
Default

this is a 100% diy job. dont take it to a shop and waste your money. it may take you an hour tops if youve never done this before, i do suggest having someone help. ive done this twice with my car when it had around 70k miles or so on it. just use some arm strength and the bolts will break lose. i reused my gasket both times. you might also need mil eliminators to plug into the 02 sensors to prevent from throwing a check engine code. i never needed them, but everyone else ive ever talked to has. there pretty cheap if i remember right. good luck!
KLeech is offline  
Old 03-25-2010, 03:33 PM
  #13  
massred98gt
2nd Gear Member
 
massred98gt's Avatar
 
Join Date: Oct 2008
Location: massachussets
Posts: 467
Default

by no means is this a simple job....ya sounds easy...unbolt a couple bolts take off old mid pipe bolt up new one done. when has anything gone according to plan when working on a car. the pass sid header bolts are a pita and i think i had to unbolt the stearing knuckle on the driver side to get enough room on the drivers side . even then i had to use some washers on one of the drivers side bolts in order to get the bolt tight because i just couldn't reach it. oh ya and my o2 were so rusted on that no amount of pb blaster or shock would break the o2 sensors loose so i had to heat it up to break up the rust......good luck though its def do able but not a fun job
massred98gt is offline  
Old 03-26-2010, 07:08 AM
  #14  
smitty2919
5th Gear Member
 
smitty2919's Avatar
 
Join Date: Sep 2009
Location: KY, was MA
Posts: 2,797
Default

Originally Posted by KLeech
this is a 100% diy job. dont take it to a shop and waste your money. it may take you an hour tops if youve never done this before, i do suggest having someone help. ive done this twice with my car when it had around 70k miles or so on it. just use some arm strength and the bolts will break lose. i reused my gasket both times. you might also need mil eliminators to plug into the 02 sensors to prevent from throwing a check engine code. i never needed them, but everyone else ive ever talked to has. there pretty cheap if i remember right. good luck!

ahah you guys crack me up. no way hes doing it in an hour for his first time in a driveway with hand tools.

i would say an hour for someone who's done it 2+ times and has it down to a science in which case the bolts have been off and on a couple of times.
smitty2919 is offline  
Old 03-26-2010, 08:17 AM
  #15  
KLeech
1st Gear Member
 
KLeech's Avatar
 
Join Date: Feb 2010
Location: Indiana
Posts: 64
Default

haha never know the op could just be a natural and get it done in like a half an hour. i still believe an hour is possible with someone helping you hold everything. but some cars cooperate better than others.
KLeech is offline  
Old 03-26-2010, 08:36 AM
  #16  
smitty2919
5th Gear Member
 
smitty2919's Avatar
 
Join Date: Sep 2009
Location: KY, was MA
Posts: 2,797
Default

Originally Posted by KLeech
haha never know the op could just be a natural and get it done in like a half an hour. i still believe an hour is possible with someone helping you hold everything. but some cars cooperate better than others.
understatement lol
smitty2919 is offline  
Old 03-26-2010, 03:41 PM
  #17  
btbw92091
1st Gear Member
 
btbw92091's Avatar
 
Join Date: Jun 2008
Location: nh
Posts: 104
Default

if i were you i would not disconnect the o2 sensors they are both rediculously hard to plug back in just use a wrench to take them out and when u put them back in twist them like 5 times in the opposite direction and put them back in once the pipe is bolted in i had one bolt break when i did it and the rest came of easy but mines from florida and only 90k it took me about an hour to 1and a half on the garage floor with ramps and jack stands
btbw92091 is offline  
Old 03-26-2010, 03:42 PM
  #18  
btbw92091
1st Gear Member
 
btbw92091's Avatar
 
Join Date: Jun 2008
Location: nh
Posts: 104
Default

o btw the only reason the bolt brok is becaus ei had it off b4 and cros threaded it and when i did it the first time they all came off easy
btbw92091 is offline  
Old 03-26-2010, 08:08 PM
  #19  
stlcardsfanp
1st Gear Member
Thread Starter
 
stlcardsfanp's Avatar
 
Join Date: Jul 2009
Location: NE
Posts: 67
Default

Any advice to get the header bolts off? I've got the one lower one loose and should be able to do the same with the other, but the top two are something else. I can't get enough leverage/right position on them...
stlcardsfanp is offline  
Old 03-27-2010, 09:23 AM
  #20  
smitty2919
5th Gear Member
 
smitty2919's Avatar
 
Join Date: Sep 2009
Location: KY, was MA
Posts: 2,797
Default

...hence why i said bring it to a shop and have them break them loose.

i was able to do mine on a lift with air tools (same as bringing it to a shop) but knowing what i went through even with a lift and air tools i would not even think about attempting it on my back with hand tools.


save yourself time and aggrivation, bring it to a shop.

if i remember correctly you'll need some fancy footwork and some extensions/swivel joints to get it. THEN you'll need enough room to prob put a cheater bar over your wrench.

be careful though. it is best to use an impact wrench (which you dont have) because the more general torque you apply to those bolts the more likely you will snap them...been there done that
smitty2919 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
GimpyHSHS
4.6L (1996-2004 Modular) Mustang
19
12-19-2023 01:12 PM
flash_xx
S197 Handling Section
14
10-16-2015 07:23 AM
Dathan
V6 (1994-2004) Mustangs
4
10-05-2015 05:52 AM
UrS4
S197 Handling Section
1
09-30-2015 10:13 AM
marc954
4.6L (1996-2004 Modular) Mustang
2
09-29-2015 11:18 AM



Quick Reply: Changing Midpipe



All times are GMT -5. The time now is 02:40 PM.