03 Discovery - Transfer Gearbox + error codes

[frekonpa]

Hi, I own a 2003 Discovery S with 145K miles on it. I find it very difficult to move the lever for the transfer gearbox out of "H". The gear will not disengage it's so hard that I am afraid I may break something if I force it too much. I tried both the 'static' and 'shift on the move' methods and nothing worked. Is it really supposed to be this hard or is something wrong.

Also need help on these rerror codes.
P0705 - transmission range sensor circuit malfunction
P0441 - evaporative emission control system incorrect purge flow

Thanks.

 

[Disco Mike]

If I read this right, you may have 2 issues, the 705, that should go to a shop if you are not familiar with this system and possibly a shift solenoid in the t/case that is not releasing and allowing you to shift to low range. May be caused by the 705 also, but after fixing that, if you have shifting issues on the t/case, the shift solenoid will most likely have failed. If that is the case, you have 2 options, replace the solenoid or remove it completely.

 

[frekonpa]

Thanks Mike, I guess I'll take your advice and head to the shop regarding the 705. What about the 441 should I try replacing the fuel tank filler cap first?

 

[Disco Mike]

441 refers to an incorrect purge flow, not a failing gas cap. Here again, if you are not familiar with testing the Evap. system, let the mechanic do it, shouldn't be a big expense.

 

[frekonpa]

I noticed there was a crack on the intake adapter (plastic connector) creating a vaccuum leak. Changed it and cleared the error code, I'll monitor it to see if the 441 comes back.