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  • 2005 - 2014 S-197 Mustang -General/Talk-
  • 2005 - 2009 Specific Tech

Hesitation at start-up.

  • Thread starter Thread starter Spdfreak
  • Start date Start date Jan 8, 2007
S

Spdfreak

New Member
Feb 21, 2006
276
1
0
Jan 8, 2007
#1
  • Jan 8, 2007
  • #1
Just as the title says, the car stumbles right as it catches, then seems to run fine. Could it just be because the weather is cold, or perhaps something more serious?

Thanks.
 

mustangmike6996

5 Year Member
Nov 10, 2005
483
6
29
clinton twp, MI
Jan 9, 2007
#2
  • Jan 9, 2007
  • #2
come to think of it i have experienced this more and more. but it only happens like 10 seconds after then its fine.... i havent had any other serious problems with it so i havent taken it in yet. let us know what the problem is for sure. maybe the PCM needs to be reflashed or something simple
(i have an all stock engine)
 

Marine One

New Member
Jan 28, 2004
276
1
0
North Topsail Beach, NC
Jan 9, 2007
#3
  • Jan 9, 2007
  • #3
Mine would do it when cold (usually only once) before I got my Brenspeed tune.
 

JTGrant

New Member
Aug 2, 2005
775
0
0
GA
Jan 9, 2007
#4
  • Jan 9, 2007
  • #4
Spdfreak said:
Just as the title says, the car stumbles right as it catches, then seems to run fine. Could it just be because the weather is cold, or perhaps something more serious?

Thanks.
Click to expand...

What mods do you have? I have experienced symptoms like this sometimes. It is because of the long tubes headers and the placement of the o2 sensors. They take longer to get to temp since they are farther away from the engine. Some people with just and offroad pipe are having similar problems also.
 
S

Spdfreak

New Member
Feb 21, 2006
276
1
0
Jan 9, 2007
#5
  • Jan 9, 2007
  • #5
JTGrant said:
What mods do you have? I have experienced symptoms like this sometimes. It is because of the long tubes headers and the placement of the o2 sensors. They take longer to get to temp since they are farther away from the engine. Some people with just and offroad pipe are having similar problems also.
Click to expand...
Just a K&N drop-in filter.
 
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