tune-up screw-up

Asked by Oct 15, 2012 at 07:59 PM about the 2006 Ford Explorer Eddie Bauer V6

Question type: Maintenance & Repair

Changed plugs and plug wires on my explorer and now it runs rough at idle. I triple checked to make sure I've not crossed up plug wires but I haven't. How can I fix this?

6 Answers


Hmh! Does it have coil packs? I bet. I'd say its a coil pack problem? Did your replace them? If not, you could have damaged one while removing... or the boot is damaged. If not. make sure that all the plug wires are seated FIRMLY on the plugs... If that doesn't fix the problem, take it to autozone or a mechanic and have them read the code (I assume your check engine light is on) and narrow it down to the cylnder that is misfiring.

1 of 1 people found this helpful.

Then run a diagnostic check on the ignition of that cylnder.

1 of 1 people found this helpful.

or remove each wire individually, look to notice which of any makes no difference on engine performance when you pull them one at a time...each one should make it significantly worse as it adds to the misfires....if it is misfiring, the check engine light WILL BE BLINKING, OR FLASHING. personally maybe knocked a sensor, removed a line from the idle, or not plugged back in the throttle, air box hoses....

1 of 1 people found this helpful.

Thanks guys. yes it does have a coil pack. I'll check it tomorrow.


Did you gap the spark plugs or just put them in as they came? I would set the gap to whatever is optimal for your engine.


Is the car running worse now than before? If it is it could be the wires. If you still have the old ones, swap them out one at a time to see if it makes a difference. It's the easiest thing to do. Then check the gap on the plugs.

Your Answer


Looking for a Used Explorer in your area?

CarGurus has 64,621 nationwide Explorer listings starting at $2,000.


Ford Explorer Experts

  • #1
  • #2
    Tom Demyan
  • #3
View All

Related Models For Sale

Used Ford Expedition
471 Great Deals out of 20,227 listings starting at $2,500
Used Jeep Grand Cherokee
843 Great Deals out of 74,143 listings starting at $500
Used Ford F-150
2,521 Great Deals out of 220,358 listings starting at $1,222
Used Chevrolet Tahoe
590 Great Deals out of 37,467 listings starting at $1,699
Used GMC Acadia
561 Great Deals out of 37,865 listings starting at $3,499
Used Ford Edge
682 Great Deals out of 52,655 listings starting at $3,000
Used Dodge Durango
234 Great Deals out of 24,698 listings starting at $1,500
Used Toyota Highlander
449 Great Deals out of 46,366 listings starting at $1,750
Used Honda Pilot
430 Great Deals out of 39,592 listings starting at $999
Used Ford Escape
928 Great Deals out of 106,091 listings starting at $550
Used Toyota 4Runner
311 Great Deals out of 31,474 listings starting at $2,595
Used Nissan Pathfinder
314 Great Deals out of 22,341 listings starting at $1,988
Used GMC Yukon
375 Great Deals out of 19,007 listings starting at $2,500
Used Chevrolet Silverado 1500
2,175 Great Deals out of 151,474 listings starting at $1,995

Used Cars For Sale

2018 Ford Explorer For Sale
34,193 listings starting at $23,218
2017 Ford Explorer For Sale
153 Great Deals out of 7,910 listings starting at $17,495
2016 Ford Explorer For Sale
118 Great Deals out of 3,901 listings starting at $12,500
2015 Ford Explorer For Sale
304 Great Deals out of 6,901 listings starting at $9,500
2014 Ford Explorer For Sale
130 Great Deals out of 3,222 listings starting at $9,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.