4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

IAC Problem?

Thread Tools
 
Search this Thread
 
Old Feb 28, 2008 | 09:08 PM
  #1  
KJohnson99gt's Avatar
KJohnson99gt
Thread Starter
 
Joined: Feb 2008
Posts: 26
From:
Default IAC Problem?

usually on cold starts my car seems to wanna cut out or stall when i hit a small bump in the road(very small) it only does this after about 10 min of running after that its fine..should i clean the IAC or replace it or is this something else
Old Feb 28, 2008 | 09:23 PM
  #2  
baino's Avatar
baino
4th Gear Member
 
Joined: Jan 2008
Posts: 1,077
From:
Default RE: IAC Problem?

it might just be that your o2s havent warmed up andare sendin bogus readings to your computer. In other words, maybeyour carsnot warmed up. not sure about 2v but my 4v hates trying to move when its not warmed up.
Old Feb 28, 2008 | 09:47 PM
  #3  
KJohnson99gt's Avatar
KJohnson99gt
Thread Starter
 
Joined: Feb 2008
Posts: 26
From:
Default RE: IAC Problem?

yea i thought about that too but why would it do it only when i hit small bumps?
Old Feb 29, 2008 | 08:29 AM
  #4  
baino's Avatar
baino
4th Gear Member
 
Joined: Jan 2008
Posts: 1,077
From:
Default RE: IAC Problem?

cause foot to bounce justa bit on accelerator (doesnt take much)and car starts to jerk. would help with a little more car info, ex- (manual, auto, year, DOHC, SOHC, upgrades).
Old Feb 29, 2008 | 08:39 AM
  #5  
99BlackPonyGT's Avatar
99BlackPonyGT
aka 'Negative Nancy'
 
Joined: Jul 2007
Posts: 4,839
From: Ohio
Default RE: IAC Problem?

i highly doubt its the IAC but it wouldnt hurt to clean it anyways...pull it off and clean it out with some carb cleaner....takes 5minutes... my car would run fine when i fired it up, but if i drove somewhere and then shut my car off and waited like 5-20 minutes and start it, it wouldnt idle...and sometimes getting off the freeway puttng it into neutral and coming down the ramp it would stall out....cleaned the IAC and its fixed now...that doesnt sound like your problem though
Old Feb 29, 2008 | 10:01 PM
  #6  
KJohnson99gt's Avatar
KJohnson99gt
Thread Starter
 
Joined: Feb 2008
Posts: 26
From:
Default RE: IAC Problem?

99 gt auto gears k&n chip and tune
Old Mar 1, 2008 | 08:34 AM
  #7  
baino's Avatar
baino
4th Gear Member
 
Joined: Jan 2008
Posts: 1,077
From:
Default RE: IAC Problem?

its an auto so that kinda throws my theory out. dont know, try 99's cleaning idea maybe. If not then the only other thing i can think of is that it is in the wiring, bumps cause wires to spark or disconnect temporarily. sorry, good luck
Old Mar 1, 2008 | 09:24 AM
  #8  
KJohnson99gt's Avatar
KJohnson99gt
Thread Starter
 
Joined: Feb 2008
Posts: 26
From:
Default RE: IAC Problem?

thanks guys
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Seanam
V6 S197 General Discussion
5
Oct 4, 2015 10:15 AM
mdj89
5.0L (1979-1995) Mustang
7
Sep 23, 2015 08:49 AM
stangin1996gt
4.6L (1996-2004 Modular) Mustang
0
Sep 21, 2015 11:01 AM
Big Al's 03
Mach 1 Section
4
Sep 21, 2015 07:59 AM
Scottyboy187
SVT Forums
1
Sep 13, 2015 10:23 PM




All times are GMT -5. The time now is 02:41 PM.