power steering valve leaking
how to rebuild steering valve.
brother, you better get a manual. i think they teach a course in this at the local community college. seriously, i can't responsibly explain the procedure to you in a venue like this.
try this link: 
http://bit.ly/mitchell\_repair\_manuals\_online
general procedure: make sure the engine is cool. loosen hose clamp where lower radiator hose attaches to engine - pull forward. place clean pan under hose to catch coolant that might spill out. pull hose off. catch coolant in pan. remove bolts on the fitting that the hose was attached to. remove gasket. remove thermostat (note how it was positioned and which side was facing out before removing -- there may be an alignment notch). install the new thermostat (the way the original was sitting,with the little "barbell" at 12:00) and gasket. re-attach hose fitting w/bolts. re-attach hose and clamp. put coolant that spilled out back in radiator. start engine and allow to warm up and check for leaks. note - if you need to remove your alternator so as to access the nuts holding the thermostat cover remember to disconnect battery before removing the alternator leads to prevent shorting. good post on parts location and repair procedure. only thing i'd like to add is antifreeze has a limited life before it loses it's ph balance and will turn acidic or base, either one will cause corrosion in the cooling system. loss of additives can also cause the cooling system to start acting as a ground conductor which will damage the cooling system. there are many different ideas on when to change, i try to change mine every 3 years or 24k miles. if you want there are test strips to check ph balance, protection temp and phosphate levels (prevent oxygen molecules from collecting around cylinder liners and etching them - usually more problematic on diesels). hth, dave to replace the transmission vacuum modulator, you need to jack up the front passengers side of the car and support it on a jack stand. before starting, apply the park brake fully.you will need a rag, an ice cream pail and a 1/4 inch drive rachet, with universal and 12 inches of extensions and a 10 mm socket to remove the modulator hold down clamp bolt which is slightly above the modulator valve. remove the vacuum hose, remove the 10 mm bolt,catch the clamp, place drain pan(ice cream pail) under the modulator to catch tranny fluid if it drips. wiggle the old leaking unit out of the bore and remove the small diameter shaft from the old unit.insert the shaft into the new unit and carefully guide the new unit into the bore, wiggling it in all the way. grab the hold down clamp in your hand, and place it in its position to hold down the modulator, this clamp goes one way and rests on the flange of the modulator to hold it in firmly. install and tighten the bolt to approximately 15 foot pounds of torque, install the vacuum hose after blowing it out from the top, remove it from the vacuum tree by the brake booster(drivers side)and blow all the tranny fluid out, and if the hose is rubbery from being saturated in fluid, replace the top part which is about a foot long. road test the vehicle, and if you have an adjustable unit, adjust the shift points to where you would like them by turning the allen screw clockwise or counterclockwise. good luck.and don't forget to check the tranny fluid level! hard to describe this, but remove the knee bolster and remove the upper mounting screws and remove shifter indactor and the steering column 4 nuts and lower down to get the upper bezel out, sometimes it is hard to pull out, then remove the 4 screws and pull the speed head out and unhook the rear wiring harness re-flash bios using usb stick if you can get that far.
if not reset option and steps like clearing cmos and pins.?
new mobo or try manufacturer.. it's very common for the tps to fail. their cheap and easy to fix.

mine went bad when my jeep was only 2 years old. i got a replacement one for around $40. please extract the files and open the l1c product vial file > import > optical > sentinel-2 > l1c 
and then run again. May need 1 0r more coil packs replaced,or it could be what happened to my 2000 4.61 lifter expanded out and wouldnt collapse,causing the rocker arm to fall out of place and the valve could never open...try unplugging 1 coil pack at a time while running and listen for a change in the way it runs,if there isnt a change then its probably a bad coil pack,find a cylinder that runs and swap the coil packs,if no difference then its probably the valve staying shut. I am assuming that you have a 4 door sedan. If you want to remove the front door panel, it is held on with 4 or 5 torx screws, Under the armrest you will see 2 plastic cap covers. Gently pry the covers loose and the screws are inside. T20 I think. Where the inside release handle is you probably have a decorative strip(wood grain or painted plastic). At the end farthest from the handle, use a plastic wedge, or flat popsicle stick to pry the corner loose and gently pull the strip toward you. There will be 2 more screws under it. If your door has a plastic airbag emblem there is a screw under it. Otherwise there should be 1 screw hiding under the mirror switc on the armrest, or mirror switch cover. Using a small flat edge wedge pry between the panel and body at bottem until the panel pops loose.work your way around the entire panel. The top panel near the glass pulls toward you. Once the entire panel is loose, grabbing the armrest,pull the panel straight upwards. Be careful when pulling up as to not pull too far. Your inner release cable is attached on the backside. When reinstalling the panel make sure that the rubber grommets are on the panel clips..they help keep water out. only thing i can think of is to maybe reflash the firmware. either it can be issue with blown fuse controlling the central locking or its issue with central locking control module.many a times these module gets wet,due to water getting collected there and after that such problem starts.clean the water and dry that area and recheck,if its working.  
  
  
for more help,i suggest click the link below and try the troubleshooting to resolve these issue:  
**<http://technoanswers.blogspot.com/2012/10/central-locking-not-working.html>**  
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**these will help.**  
**thanks.**