2003 mountaineer check engine light is on had it scanned and it says system voltage too high. when you start it up it has a misfire of sort. put it in drive it spudders then drives out fine help?????

Asked by Jun 06, 2014 at 10:32 PM about the 2003 Mercury Mountaineer 4 Dr STD AWD SUV

Question type: Maintenance & Repair

Also does anyone know what a
chatter might be in the front end at
low rpm?????

4 Answers

109,975

If it says system voltage you better get it fixed or it could really cost you, over voltage can fry all of the electronics in your vehicle, don't delay.

Im sorry system voltage bank one too high i was told it was a faulty O2 sensor or harness could that make my rough start out drive?

109,975

OK yep that can do it, double check the wiring if no problem is found with the wiring then replace the sensor, don't forget to erase the code after your done so the ECM can read the new sensor.

Will update soon thanks for the help

Your Answer

Mountaineer

Looking for a Used Mountaineer in your area?

CarGurus has 934 nationwide Mountaineer listings starting at $1,900.

ZIP:

Mercury Mountaineer Experts

  • #1
    Tom Demyan
    Reputation
    600
  • #2
    kbro
    Reputation
    460
  • #3
    tuff4x4
    Reputation
    300
View All

Related Models For Sale

Used Ford Explorer
1,072 Great Deals out of 67,952 listings starting at $1,200
Used Ford Expedition
469 Great Deals out of 20,388 listings starting at $2,300
Used Ford F-150
2,998 Great Deals out of 231,247 listings starting at $1,300
Used Chevrolet Tahoe
801 Great Deals out of 40,246 listings starting at $1,799
Used Ford Escape
1,145 Great Deals out of 108,085 listings starting at $1,000
Used Lincoln Navigator
102 Great Deals out of 3,679 listings starting at $2,900
Used Jeep Grand Cherokee
886 Great Deals out of 72,237 listings starting at $900
Used Dodge Durango
263 Great Deals out of 24,898 listings starting at $1,500
Used GMC Yukon
495 Great Deals out of 19,449 listings starting at $2,495
Used Lincoln Aviator
3 Great Deals out of 209 listings starting at $2,500
Used Nissan Pathfinder
454 Great Deals out of 23,183 listings starting at $1,995
Used Toyota 4Runner
352 Great Deals out of 29,570 listings starting at $1,500

Used Cars For Sale

2010 Mercury Mountaineer For Sale
3 Great Deals out of 67 listings starting at $5,995
2009 Mercury Mountaineer For Sale
20 listings starting at $5,822
2008 Mercury Mountaineer For Sale
4 Great Deals out of 125 listings starting at $3,995
2007 Mercury Mountaineer For Sale
5 Great Deals out of 126 listings starting at $3,995
2006 Mercury Mountaineer For Sale
133 listings starting at $1,900

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.