General Tech Forum Use this form for tech related topics that relate to all/most Mustang platforms

bucking/surging

Thread Tools
 
Search this Thread
 
Old Apr 23, 2009 | 06:45 AM
  #1  
SLP02GT's Avatar
Thread Starter
|
Senior Member
Joined: Mar 2006
Posts: 382
Default bucking/surging

I was playing w/ the timing and ended up advancing it. The car has a lot more power and no detonation/pinging. Either way I now have a bucking/surging issue at about 1700rpms at cruising speeds. If you accelerate or decellerate past this point it goes away. The car idles great and also runs great at WOT. Would too much advance timing or base timing cause this issue?
 
Old Apr 23, 2009 | 07:44 AM
  #2  
FoxRodder's Avatar
Member
Joined: Mar 2009
Posts: 63
From: Orlando yuk
Default

Did you use a light to check it?
 
Old Apr 23, 2009 | 07:54 AM
  #3  
SLP02GT's Avatar
Thread Starter
|
Senior Member
Joined: Mar 2006
Posts: 382
Default

yea, i used a light...Either way I pulled the plugs out and it seems to be running way lean even with 44psi fuel pressure without vaccum and 39psi w/ vacuum. I have no pinging and it feels a hell of a lot faster. So should a back the timing down a little if its running lean?
 
Old Apr 23, 2009 | 08:43 AM
  #4  
r3dn3ck's Avatar
Wowbagger hates me too!
Joined: Nov 2005
Posts: 9,865
From: Magrathea/California
Default

yes is the answer. I have to pull a degree or two from mine for the same reason.
 
Old Apr 23, 2009 | 08:58 AM
  #5  
FoxRodder's Avatar
Member
Joined: Mar 2009
Posts: 63
From: Orlando yuk
Default

I bumped the timing on my 92 one day in prep to get premium on the way to work and then hit the track later. I think it was doing a similar thing when driving. I'd back it a few and see what it does like redneck says
 
Old Apr 23, 2009 | 10:45 AM
  #6  
SLP02GT's Avatar
Thread Starter
|
Senior Member
Joined: Mar 2006
Posts: 382
Default

Cool, thanks guys I guess I will back it down a few degrees...I just love the power it has at WOT now, lol
 
Old Apr 23, 2009 | 06:30 PM
  #7  
SLP02GT's Avatar
Thread Starter
|
Senior Member
Joined: Mar 2006
Posts: 382
Default

backed a little timing out and the surging went away
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Black Sunshine
Modular 4.6L Tech
2
Jul 3, 2009 08:06 AM
95V8Conversion
5.0L Tech
2
Nov 13, 2007 09:41 PM




All times are GMT -7. The time now is 06:45 AM.