5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

91 vert tailpipe smoking

Old 09-26-2015, 02:37 PM
  #1  
MacSerio
Thread Starter
 
MacSerio's Avatar
 
Join Date: Apr 2013
Location: California
Posts: 37
Default 91 vert tailpipe smoking

I just rebuilt the engine and after finally timing it I went to drive it to test the clutch tension and the exhaust popped and is now dumping out white smoke and idle is now surging. I have 24lb injectors and the rest is stock. Any ideas What might be causing This?
MacSerio is offline  
Old 09-26-2015, 04:32 PM
  #2  
JPJP
1st Gear Member
 
JPJP's Avatar
 
Join Date: Aug 2008
Posts: 115
Default

Backfire in intake = too lean...backfire in exhaust = too rich.

White smoke, that's weird but sounds like head gasket leak.
JPJP is offline  
Old 09-26-2015, 07:33 PM
  #3  
mjr46
D.R. THE PATHETIC DORK
 
mjr46's Avatar
 
Join Date: Jun 2007
Location: West Virginia
Posts: 30,863
Default

sounds like it's misfiring.........check all plug wires...make sure none got burnt on the exhaust..........if all tune up parts are good and verified good, check rocker adjustment.......and or compression test..........could be a lot of things...not enough info provided to narrow it down..I assume your maf is set up for 24's?
mjr46 is offline  
Old 09-27-2015, 01:05 PM
  #4  
MacSerio
Thread Starter
 
MacSerio's Avatar
 
Join Date: Apr 2013
Location: California
Posts: 37
Default

I have the air tube for 24s. At this point I know I have one leaking injector because a I have a wet spark plug but every other plug is completely black so why is it running so rich if it's timed and I have the air tube for 24s? Can one bad injector cause that?

Originally Posted by mjr46
sounds like it's misfiring.........check all plug wires...make sure none got burnt on the exhaust..........if all tune up parts are good and verified good, check rocker adjustment.......and or compression test..........could be a lot of things...not enough info provided to narrow it down..I assume your maf is set up for 24's?
MacSerio is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
robcy
Suspension
1
10-27-2015 11:14 PM
RCS02v6
New Member Area
4
09-29-2015 01:46 PM
mltdwn12
V6 (1994-2004) Mustangs
1
09-23-2015 08:54 AM
Ipaman
5.0L (1979-1995) Mustang
12
09-22-2015 07:01 AM
fastbackford351
Classic Mustang General Discussion
2
09-12-2015 09:42 AM


Thread Tools
Search this Thread
Quick Reply: 91 vert tailpipe smoking



All times are GMT -5. The time now is 08:47 PM.