SPONSORED LINKS

2002 Mercury Mountaineer Read codes and multiple issues

Tiny
TALANDTY
  • MEMBER
  • 2002 MERCURY MOUNTAINEER
  • V8
  • AWD
  • AUTOMATIC
  • 136,000 MILES
Ran codes awhile back when check engine soon light came on and said cyl 5 misfiring. Changed plugs, wires, and oil and filter. Light went off for a few days then returned. Recently light began blinking. Then engine started making knocking sound and had no power. Ran codes tonight and it read many codes I'm looking up, but also said problems with computer, egr, O2 sensor among others All gauges read fine, as well as system check. It is leaking oil bad (neighbor borrowed it and put 5 extra quarts of oil in it. I had it drained the next day and put new oil in. Could the over filing of oil have caused all this (it wasonly in less than 1 day), or maybe computer is bad and causing other issues?
SPONSORED LINKS
Saturday, September 13th, 2014 AT 12:22 AM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check battery for condition including load test as a bad battery will throw codes that aren't there. Overfilling on oil isn't good but also checkcompresson because I think there is another issue. Misfires are very hard to diagnose because it cn be any sensor, injector as well as basic engine problems. Autoparts do batteries for free checking them
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, September 13th, 2014 AT 5:39 AM
Tiny
TALANDTY
  • MEMBER
  • 2 POSTS
Thank you, I will take battery to test it but just replaced it in the last 6 months or so.
Was this
answer
helpful?
Yes
No
Saturday, September 13th, 2014 AT 2:39 PM

Please login or register to post a reply.

Related Engine Computer Read Code Content

VIEW MORE

Sponsored links