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

Check Engine Light blinking while driving? Need Help!!

Old 05-30-2012, 08:28 AM
  #1  
Shockey
Thread Starter
 
Shockey's Avatar
 
Join Date: May 2012
Location: tx
Posts: 2
Default Check Engine Light blinking while driving? Need Help!!

lets start with the car 2002 mustang GT, 145k miles mostly stock other than full exhaust and some bolt ons and superchips programmer. I was getting on the hwy the other morning and went to get up to speed and the car was studdering and had missing power I immediatly looked down at the gauges and the check engine light was blinking which i have never seen before..... by the time i went to pull over on the shoulder and check under the hood the light went solid and it ran just like it was supposed to. It has since then done this a more than a handful of times and once on the way to work this morning.... Just figured i would see if anyone has had similar problems or what they did to fix this or any suggestions. I talked to the guy i got the car from and he said plugs were done a year ago and the fuel filter has never been done. I have only had the car about 4 months...... let me add the check engine light has always been on bc of the exhaust it has MIL eliminators but for some reason the check engine light will come and go and when i run the code i get the O2 sensor code
Shockey is offline  
Old 05-30-2012, 08:57 AM
  #2  
WhiteFoxGT
Resident Ford Troll
 
WhiteFoxGT's Avatar
 
Join Date: Jul 2006
Location: Delaware
Posts: 6,716
Default

Faulty coil pack(s)

Get the car scanned for codes, find out which missfire code it is giving you, and replace that coil pack and spark plug. problem fixed
WhiteFoxGT is offline  
Old 05-30-2012, 09:09 AM
  #3  
Shockey
Thread Starter
 
Shockey's Avatar
 
Join Date: May 2012
Location: tx
Posts: 2
Default

ok thanks i will check it when i get a chance today.
Shockey is offline  
Old 05-30-2012, 04:47 PM
  #4  
ctgreddy
6th Gear Member
 
ctgreddy's Avatar
 
Join Date: May 2007
Location: Dearborn, MI
Posts: 6,277
Default

yes blinking cel usually means the cars misfiring. easy fix like whitefox suggested.
ctgreddy is offline  
Old 06-01-2012, 02:04 PM
  #5  
wcgman
5th Gear Member
 
wcgman's Avatar
 
Join Date: Mar 2006
Location: Colorado
Posts: 2,652
Default

Originally Posted by WhiteFoxGT
Faulty coil pack(s)

Get the car scanned for codes, find out which missfire code it is giving you, and replace that coil pack and spark plug. problem fixed
Your sig says resident ford tech...not being a smart aleck...but are you really a ford tech? I ask because it's nice to know you're out there watching out for us.
wcgman is offline  
Old 06-01-2012, 03:46 PM
  #6  
WhiteFoxGT
Resident Ford Troll
 
WhiteFoxGT's Avatar
 
Join Date: Jul 2006
Location: Delaware
Posts: 6,716
Default

Originally Posted by wcgman
Your sig says resident ford tech...not being a smart aleck...but are you really a ford tech? I ask because it's nice to know you're out there watching out for us.
worked at carman ford in new castle DE for almost 5 years. My team leader left, opened his own place, and took me with him. Now I work on everything, but still have access to anything Ford. So Im here to help, however this forum has gone down hill since the good old days
WhiteFoxGT is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
djbigskrilla
2005-2014 Mustangs
24
09-20-2022 01:04 AM
labudski
5.0L (1979-1995) Mustang
2
08-24-2015 07:23 AM
microgt
V6 (1994-2004) Mustangs
2
08-20-2015 07:12 AM
mweiland
General Tech
6
08-13-2015 05:11 PM
drumhedd2005
2005-2014 Mustangs
2
08-13-2015 09:59 AM


Thread Tools
Search this Thread
Quick Reply: Check Engine Light blinking while driving? Need Help!!



All times are GMT -5. The time now is 11:45 AM.