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2003 3.8 V6 stuttering and back firing


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SMGlew
New User

Dec 28, 2012, 7:00 PM

Post #1 of 8 (1100 views)
2003 3.8 V6 stuttering and back firing Sign In

Hello,

I had the engine check light come on the other day. Went to advanced and had a code test ran. They said it was either the spark plug in cylinder 3, spark plug wires, or coil something... I replace the spark plug and the check engine light went off. I decided to go ahead and replace the rest of the plugs and wires sense I had them so I
replaced the spark plugs and attempted to replace the wires. After changing wires 4 and 5 I realized I got the wrong wires from advanced. I put the old wires on and started the car, now I am experiencing bad sputtering and back firing. I verified that the cables are hooked up in the correct spot, made sure the new plugs where not damaged. I'm not sure where to go from here.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Dec 28, 2012, 7:04 PM

Post #2 of 8 (1092 views)
Re: 2003 3.8 V6 stuttering and back firing Sign In


Quote
I'm not sure where to go from here.


Neither are we since you haven't included the make and model of what your playing with.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


SMGlew
New User

Dec 28, 2012, 7:06 PM

Post #3 of 8 (1087 views)
Re: 2003 3.8 V6 stuttering and back firing Sign In

Sorry... 2003 3.8 V6 Ford Mustang


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Dec 28, 2012, 7:11 PM

Post #4 of 8 (1080 views)
Re: 2003 3.8 V6 stuttering and back firing Sign In

Usually backfiring is caused by an ignition timing problem.

Was it backfiring and stuttering before you changed the plugs and some of the spark plug wires?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Dec 28, 2012, 7:11 PM)


SMGlew
New User

Dec 28, 2012, 7:13 PM

Post #5 of 8 (1074 views)
Re: 2003 3.8 V6 stuttering and back firing Sign In

No it was not, it started after I replaced the plugs and wires


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Dec 28, 2012, 7:15 PM

Post #6 of 8 (1071 views)
Re: 2003 3.8 V6 stuttering and back firing Sign In

Recheck your firing order and spark plug cable connections one more time:







Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


SMGlew
New User

Dec 28, 2012, 7:36 PM

Post #7 of 8 (1062 views)
Re: 2003 3.8 V6 stuttering and back firing Sign In

Wow...I thought I had it correct, that definatley fixed the stuttering and backfiring...thank you. My service engine light is back on. I will have a code test ran on it unless you have any ideas. By the way, I contacted 2CARPro's about 2 hrs ago and donated money and still haven't gotten a reply so I thank you again for the help, I will always use and recommend this site.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 28, 2012, 8:12 PM

Post #8 of 8 (1053 views)
Re: 2003 3.8 V6 stuttering and back firing Sign In

There's a good chance some of those wires didn't survive the tugging and pulling to get them off too.



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