1999 Mercury Mountaineer: check engine light

7 of the 151 complaints about the 1999 Mercury Mountaineer describe check engine light.

owner complaints: 7
of this car's complaints: 5%
typical mileage: 128,000
recalls: 0

Is there a fix? 60 service bulletins cover this area of the car. See below

Check engine light by model year

2010
1
2008
2
2007
3
2006
3
2005
3
2004
3
2003
3
2002
9
2000
1
1999
7
1998
7
1997
1

What owners say

Filed Jul 31, 2014 · Transmission · 128,000 miles · TX

Tl* the contact owns a 1999 mercury mountaineer. The contact stated that while driving at 30 MPH, the check engine warning light illuminated. The failure occurred on multiple occasions. The vehicle was taken to an independent mechanic where it was diagnosed that the spark plugs needed to be replaced. The vehicle was repaired but the failure persisted. The manufacturer was not notified of the failure. The VIN was not available. The approximate failure mileage of the vehicle was 128,000.

Filed Dec 14, 2011 · Fuel system · 130,000 miles · IN

Check engine light was on. Ran diagnostics to determine the fuel tank was not pulling a vacuum. Determined the fuel filler neck pipe was cracked at the top of the line near the tank cap. Went to replace the fuel filler neck pipe and found out where the pipe meets the tank, more than 1/2 of the diameter of the connection was missing (rusted thru) and broke off while trying to remove the hose (the metal attachment from the tank is stuck in the filler neck hose). The outside of the tank was wet with fuel. The rest of the tank is solid with no thin walls. Replaced tank and filler pipe with new.

Filed Jul 3, 2011 · Electrical · 196,828 miles · MO · fire · 2 injuries

Have been having trouble with door locks, delay switch on rearview mirror, window lock and window functions, ABS on all the time ,door ajar light on all the time. Nonfunctioning dome light switches and intermittent check engine light ( which when checked was determined to be some unknown insufficient exhaust flow issue). Constant clicking noises coming from the far left drivers side of dash. We noticed a flame coming out of my left front top dash vent after car had been parked for 5+ hours. It's obvious the fire started in the dash and it burnt both of the wiring harnesses under the left front control panel hitting the vent line and coming out the top vent of the drivers side of the dash. We had to poor buckets of water inside dash vents/ openings and front hood area to get the flames out. Our injuries were incurred while trying to put out the fire.

Filed Sep 9, 2005 · Airbags, Engine · GA

1999 mercury mountaineer developed problems with the windshield wipers, tires, driver's side mirror, linkage on the transmission, check engine light and the airbag light.

Filed Mar 23, 2004 · Engine · 53,000 miles · OH

Consumer was charged $80.15 to learn the check engine light problem she experienced was recalled by ford. *ph

Filed Jan 15, 2004 · Engine, Tires · 34,000 miles · NJ

Took the truck back to the dealer for the four time 9/2903 for the check engine light came on again and the same code keeps coming up and it is getting old not to have the truck that we are still paying for monthly.annd I have all the work orders for what they did

Filed Jun 25, 2001 · Engine · AZ

Vehicle stalls in reverse/ sittting at stop lights / stop signs and going up hills. Engine light came on as a warning indicating something was wrong. Dealer cannot duplicate the problem to find a remedy.