Change Wires even Without Codes to fix rough idle

[kturnerga]

I heard from someone that I should change my wires to alleviate an issue with rough running on my 96 XLT. I haven't had any codes thrown. Will bad wires cause my issues no matter what the codes say?
Thanks
KT

 

[tneff]

I would go down a small checklist, before just throwing money at a thought. Clean air filter, look for broken vacuum lines (was my problem). Clean throttle body,pull plugs and look at them.etc. There are several things that can cause it to run rough.

 

[Tbars4]

.When was your last full tune up and cleaning a MAF can do wonders..

 

[swshawaii]

Dirty or faulty IAC valve is a VERY common cause of a rough idle.

http://www.explorerforum.com/forums/showthread.php?t=84220

 

[kturnerga]

I need to check the vacuum lines to be sure there are no issues. I swapped the IACV with a used one last year. I swapped all plugs but I did not swap the wires.