1997 Mustang V6 Misfiring in cylinders 2 and 5? - Ford Mustang Forum
 
LinkBack Thread Tools
post #1 of 8 (permalink) Old 03-08-2011 Thread Starter
Rookie
 
cjspears08's Avatar
 
Joined: Mar 2011
Location: Ft. Hood
Posts: 3
 
1997 Mustang V6 Misfiring in cylinders 2 and 5?

So this is all really new to me. I am a beginner in all aspects of the word.

We have a 1997 v6 coupe mustang. I was driving it the other day and it was idling super rough. The check engine light came on flashed for a bit and then stayed on. when I hooked up the code reader, I got a 302, 305 and then both were pending.

Looked up the codes and from what I could find, cylinders 2 and 5 are misfiring. How do I go about fixing this?

cjspears08 is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 03-09-2011
Apprentice
V6 Member
 
amboyV6's Avatar
 
Joined: Aug 2010
Location: Los Angeles
Posts: 71
 
If it's misfiring, you probably have a bad coil pack, spark plug wires or spark plug.


Play hard, Rock harder.
2002 Mustang V6, AT
K&N Air Intake/Tokico HP Series Shocks & Struts
Mach 1 Chin Spoiler/Fog Lights
Dual Flowmaster 40 Series Delta Flow
(That's all folks!)
amboyV6 is offline  
post #3 of 8 (permalink) Old 03-09-2011 Thread Starter
Rookie
 
cjspears08's Avatar
 
Joined: Mar 2011
Location: Ft. Hood
Posts: 3
 
We replace the spark plugs a couple about a week and a half ago, the coil pack was replaced so check the wires?
cjspears08 is offline  
 
post #4 of 8 (permalink) Old 03-09-2011 Thread Starter
Rookie
 
cjspears08's Avatar
 
Joined: Mar 2011
Location: Ft. Hood
Posts: 3
 
is there anything else it could be?
cjspears08 is offline  
post #5 of 8 (permalink) Old 03-09-2011
Apprentice
V6 Member
 
amboyV6's Avatar
 
Joined: Aug 2010
Location: Los Angeles
Posts: 71
 
Yeah, check for burnt spark plug wires, 'coz it might be touching the manifold. Have you checked the spark plug gap when you changed it?

Play hard, Rock harder.
2002 Mustang V6, AT
K&N Air Intake/Tokico HP Series Shocks & Struts
Mach 1 Chin Spoiler/Fog Lights
Dual Flowmaster 40 Series Delta Flow
(That's all folks!)
amboyV6 is offline  
post #6 of 8 (permalink) Old 03-09-2011
Rookie
V6 Member
 
danderson0223's Avatar
 
Joined: Mar 2011
Location: Myrtle Beach
Posts: 7
 
mine did the same thing, and i found out that it was plug wires burned up and arching on the manifold.. but 2 months prior i replaced the coil, also i am a firm believer in using the plugs that were in the car when you got it (brand) and make sure they are gapped.

Atlantic Blue Automatic V6: Performance:
American Muscle CAI, Mac performance Dual exhaust, with O/R H-Pipe, Diablo Sport Tuner, Ford Racing Trac-Loc, Ford Racing 4.10 gears. Appearance: 17" Mustang bullits w/ tri-bar pony center caps, 01 dash swap, completely redone interior, reupholstered seats to come, gray rocker stripes. Audio: Kicker 12" L5, custom sub box, Power Accoustic BAMF 2000w Mono Amp, Kicker highs and mids (removed 460 system), Dual 600 Watt 4 channel amp and Pioneer Headunit
danderson0223 is offline  
post #7 of 8 (permalink) Old 03-09-2011
Rookie
 
slickbullet5150's Avatar
 
Joined: Mar 2011
Location: Elk grove
Posts: 17
 
bad injectors, a vacuum leak, a MAF sensor problem, can cause misfires also..
slickbullet5150 is offline  
post #8 of 8 (permalink) Old 03-10-2011
SHELBY GT 350 Member
 
wmburns's Avatar
 
Joined: Sep 2010
Location: Houston
Posts: 6,847
         
This is important to understand the likely source of this problem. On the V6, cylinders are paired using the same firing circuit. Therefore, which two cylinders are affected gives some information.

For the V6, the cylinder pair is 5-1, 3-4, 2-6.

SO...if the coil pack for cylinder 5 were bad, then cylinder 1 has to be affected as well.

Since the cylinders affected are not paired, we should look for things that could affect one cylinder or the particular combination.

My vote is to rule out an accidental swap of 2 and 5 at the coil pack.

Next check the routing of the spark plug wires. Did you follow the factory routing including using the stand off's and loams?

Next try this old racer's trick. Run the car in a totally dark location. Look for the blue hue of escaping spark. Inspect the wires for white marks which is evidence of arching.

Don't assume because the wires are new, they are good. If misrouted and arching, it doesn't take very long to ruin a new set of wires.

2003 GT Convertible (sold & missed)
2000 GT coupe (Craigslist project. Fixed. Now my DD). Windsor to Romeo swap.
wmburns is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a VALID email address for yourself, otherwise you will not receive the necessary confirmation email needed to confirm, validate and activate your new AFM member account.

Failure to provide a VALID email address, will result in the cancellation of your new AFM member account registration.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome
 


Search Engine Friendly URLs by vBSEO 3.6.1