please help-p0443,p1747,p0750,p0755,p0743,p1451

[f20cdriver]

these are the codes showing up on my mom's 2002 4.6l expedition. any help solving these problems would be greatly appreciated.

p0443 evaporative emission system purge control valve circuit
p1747 1. engine speed desired signal out-of-range 2. pressure control solenoid A short circuit.
p0750 shift solenoid A
p0755 shift solenoid B
p0743 torque converter clutch solenoid circuit electrical
p1451 evaporative emission system vent control circuit

symptoms:
1. the transmission doesn't allow the truck to go faster than 30 mph.
2. when gas peddle is pressed all the way down, rpm doesn't go beyond 2k and clutch feels as though it is slipping (truck shakes).
3. overdrive light flashing

solutions tried:
1. changed transmission fluid filter and fluid (not flush)

thanks for reading

edit:
does anybody have a service manual document that I can download? I'm a Honda guy and I got a few manuals in the past from Honda forums. hopefully somebody can come through. thanks again

 

[f20cdriver]

well I found the connector that delivers power to the series of solenoids in the transmission. the connection was completely soaked in transmission fluid. I cleaned the connection with canned air and electrical cleaner and reconnected the plug. the codes on the engine scanner went away for a minute, but it reappeared quickly. I still have the same issues, but at least I know the source of the problem. the connector is located on the passenger side of the transmission directly above one of the 14 bolts that hold the pan in place.

 

[bedrck46]

Ford workshop manual on DVD. Can be obtained from seller "morpheousking" on e-bay. Cost about $10.00 Much better than Clymer, Haynes or Chilton and also includes wiring diagrams

Don't waste your money on a Clymer, Haynes or Chilton Manual.
It is well worth the $10.00 just make sure you get the DVD for your year as the seller has different DVD's for different years

 

[tojohnso]

Too bad he doesn't have them for anything above 2008. Nice find though, Bedrck46!

 

[bedrck46]

I have the ones that cover years 1996 thru 2008 but only covers Expy's 97--07 Was hoping he gets the newer years