2005 Mountaineer service engine soon light comes on


Asked by Jul 21, 2017 at 07:28 AM about the 2005 Mercury Mountaineer 4 Dr STD AWD SUV

Question type: Maintenance & Repair

3 times within 4 weeks, service engine light comes on while sitting with motor
running over 10 minutes. Repair shops not able to find anything. Up to date
on all maintenance. 1rst time shop reset, 2 no time went away after 2 days
not driven and 3 red time, just stays on ( less than 24 hours) Any ideas?

3 Answers


how many miles on the car, Allot of times the service light will come on because the Cats are starting to clog up and will not throw a code but the will turn on the service light or the car is running on the hot side, this will also turn on the service light !

2 of 2 people found this helpful.

184,000. It's just really been a great car so trying to keep it bit longer. I forgot to add when the light first comes on it runs little sluggish but once I start driving its fine

1 of 1 people found this helpful.

Also, all gauges on the car are good, no issues. Run the system check for fluids, engine, etc all ok

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