02 MOUNTAINEER WON'T START BUT TURNS OVER - 2002 Mercury Mountaineer

what do you mean won`t start. it won`t turn over or it turns over but won`t start or it will run for about 2 seconds then stop?

check fuse, check for fire, if no fire when turning over probably busted timing belt/chain, if fire then check for fuel

It is computer controlled-how would it be out of time?

You now see that changing parts- is not a diagnostic
solution that leads to success

You need to know the systems your working on &
how to test them

How about a repair shop !!

Is the battery good in it?

It can be the issue with weak battery or faulty battery or if battery is ok,then its faulty starter causing the issue.

From start to end troubleshooting these problem i suggest you to click the link below and follow its procedure:-----

What to Do When Car Turns Over But Won't Start?

http://technoanswers.blogspot.com/2012/11/what-to-do-when-car-turns-over-but-wont.html

-----------
Car starting issues?

http://technoanswers.blogspot.in/2012/02/car-starting-issues.html

------------
Car Starting Problems

http://whoisbyme.blogspot.in/2012/06/car-starting-problems.html

--------
1991 Toyota Trecel: Engine Starts fine but dies when gets Warm?

http://whatisbyme.blogspot.in/2012/05/1991-toyota-trecel-engine-starts-fine.html

----------
1994 Toyota Pickup: Starts fine but dies in few seconds?

http://howtobyme.blogspot.in/2012/05/1994-toyota-pickup-starts-fine-but-dies.html

---------
1999 Chrysler Cirrus: 8 IGN Fuel Starter Fuse Blows?

http://whatisbyme.blogspot.in/2012/06/1999-chrysler-cirrus-8-ign-fuel-starter.html

-----------
2001 Toyota Camry: No start After replacing Battery?

http://whatisbyme.blogspot.in/2012/05/2001-toyota-camry-no-start-after.html

----------
1989 Toyota Pickup Truck: Turns over but not start? http://whatisbyme.blogspot.in/2012/05/1989-toyota-pickup-truck-turns-over-but.html

--------------
Car dead and will not Start? http://whatisbyme.blogspot.in/2012/05/car-dead-and-will-not-start.html

--------
1995 Lexus LS400: Running Hot?

http://whatisbyme.blogspot.in/2012/05/1995-lexus-ls400-running-hot.html

----------
2001 Toyota Prius will not start? http://whatisbyme.blogspot.in/2012/05/2001-toyota-prius-will-not-start.html

---------
1996 Jeep Grand Cherokee: Engine will not start? http://repairhelpcenter.blogspot.in/2012/06/1996-jeep-grand-cherokee-engine-will.html ------------- Mitsubishi will not start

http://www.howtorepairguide.com

---------

These will help.

Thanks.

Your ignition starter is bad.

when it won't crank you will need to start at the battery and work your way to the starter checking for voltage
battery - cables - ignition switch - neutral safety switch - starter

Closed loop the ECM is using the feedback from the 02 sensor, open loop the ECM ignores the 02 sensor, this is a emission strategy on the vehicle, has nothing to do with the car not starting.

I would change the filter,and fluid,and use the recommended fluid,witch should be mercron 6.

have the transfer case fluid changed, this is a symptom of worn out fluid, also add a bottle of friction modifier to the case.