The door ajar signal comes from door open warning lamp switches (14018) located in the door jamb. When any door is open, the generic electronic module (GEM) will cause the door ajar warning indicator to be illuminated on theinstrument cluster . The warning indicator will turn off when the warning condition is removed (the door is closed). You could have a bad door ajar switch .A bad seat belt buckle switch and a low washer fluid sensor bad as well . Finding wiring diagrams for these circuits an doing voltage testing Is the proper way to diagnose problems like this . After four different GEM module . The seat belt buckle switch has B+ voltage on one wire , Brown with lite blue stripe . The other wire goes to ground G-300 . When the buckle is closed voltage goes to ground G- 300 . The GEM will see this an turn off the light . You do not have a bad GEM . This is probably what's wrong with the other lights . Find wiring diagrams here http://www.bbbind.com/free_tsb.html
Enter vehicle info. year , make , model engine size . Under system click on body & accessories , under subsyetem click body controls . Hit the search button , click on the blue link . The diagram will show pin # for each of the lights your having problems with. Test voltage AT each pin . if there is voltage , don't know if system voltage or a five volt reference voltage . There is nothing wrong with the GEM . U better find yourself a better mechanic . The Trainer 32 How To Read An Automotive Block Wiring Diagram
ECM Inputs and Outputs Diagnosis You better get your so called mechanic to check out some of these videos . The dealer probably didn't want to mess with it. They can just look at some peoples vehicles an think this won't be worth messing with . They do it at the one I work at .
It isn't unusual for car wheels to lean in but it is unusual for them to lean in so much it is noticeable - unless you are particularly perceptive...
Originally the wheels leaned out so they sat at 90 degrees to the cambered road surface so the tyres wore evenly. That was called positive camber but it did nothing to enhance road holding and handling. Time moved on and it was discovered negative camber enhanced cornering and careful design meant good tyre life could still be obtained.
If your tyres are wearing evenly you probably haven't a problem but if you have any doubts I suggest you get it checked.
The vehicle speed sensor is going bad . That's what is causing erratic shifting an the O/D light flashing .
The back-up lamp system consists of:
the transmission range (TR) sensor.
the back-up lamp bulb(s) located in both rear lamp (13404) assemblies
circuit wiring and circuit protection
Circuit protection is provided to the transmission range (TR) sensor through fuse 30 (25A). This fuse is hot in RUN. With the transmission in REVERSE, the switch closes and power is provided to the back-up lamp bulbs through Circuit 140 (BK/PK). Ground is provided to the back up lamp bulbs through Circuit 57 (BK). The range sensor is located on the transmission at the manual lever.
ECM Inputs and Outputs Diagnosishttp://www.bbbind.com/free_tsb.html Find free wiring diagrams here ! Enter vehicle info year , make , model an engine size . Under system click on lighting , then subsystem click on reverse lamps . Hit the search button , then click on the link .There is your back up lamp circuit check the fuse , check power at the range sensor switch in an out .
Fuse N 20 amp , under hood fuse box . There is also a fuel pump relay ,which the PCM - engine computer turns on to supply power to the fuel pump . Plus in the circuit is a inertia fuel shut off swith , this is incase of a wreck .I would check to see if the inertia switch was tripped . Location Inertia Fuel Shut-Off (IFS) SwitchC322
On lower LH "A" pillar, under I/P
I would also watch this video on fuel pump electrical circuits ! Fuel Pump Electrical Circuits Description and Operation
The crankshaft position (CKP) sensor on the 1998 Windstar with 3.8L is located near the crankshaft pulley on the front cover. There is a shield mounted over the CKP sensor that you'll need to remove to access the sensor.
Would you care to share why you suspect the CKP sensor is bad? Typically with Fords a bad CKP will cause a no-start condition due to no spark, but you'll still hove good fuel pressure.