2002 Mitsubishi Delica Space Gear L400 (Garage entry)

[Fummins]

I found this on a pay to use site that I ended up stumbling upon a glitchy old page that had these posts. Guy had a 2002 Montero Sport with a 3.0l, so should be the same transmission. I don't have the code 27 but do have the 41 code and similar slipping/driving 2' then falling out of gear symptoms. So it looks like it's probably an internal problem.

mitsu people please help this truck came in withtrans issuses - started by checking fluid level & condition (ok) ses light was on so pulled codes 27 & 41 tested & found bad output speed sensor & gear selector replaced both input & output sensors & gear range selector codes went away but trans still acts up / as soon as u start moving (like 2 feet) acts like it goes into neutral untill u slow almost to a stop then slams back into gear it does this in every gear accept when starting in low u can manually shift it through all the gears & it works fine (small flare between 1 & 2 but not much) u can also power brake it with no problems in any gear range did wire testing from tcm/pcm to solenoids & they tested ok so we suspected comp. issue - replaced with known good one still same problem when watching scanner & running through gear sector solenoids are in park/net. ok- rev. ok _ 1st ok - 2nd l/r is off 2nd on - 3rd l/r is off od is on - 4th l/r is off 2nd is on u/d is off od is on - no local mitsu dealer one trans shop said trans is shot but just cant beleve that since works fine with manual shifting any help please

Related Repair History
came in for transmission problems fluid is full & red pulled codes from computer 27 & 41 replaced input/output speed sensors & gear range selctor

FIX posted on Jan 7, 2010 6:34:13 AM
leigh from oregon hit it right on the head. yanked it out and tore it down found internal problems. rebuilt & reinstalled everything is now ok thanks for all the help

Dec 21, 2009 5:23:16 PM

ok
low one way clutch is not engaging. it is a roller clutch that is mechanical. this trans uses the low/rev brake in o/d third and second until vehicle reaches approx 6.2 mph. at that point this low rev clutch turns off and output shaft is held by one way clutch. when you put trans in manual low low/rev hyd. clutch holds and does not release until man 2nd. where it is not used. ------ trans is bad yank it & spank it