ChihuahuaRide
Active Member
- Messages
- 27
- Location
- Malaysia, Borneo
Just had my adventure series H3 transfer case rebuild which had 109,000KM with new bearings, fork guides, seals, gaskets, o-rings, cast aluminium shift yoke and chain all replaced done according to the service manual.
Before this rebuild was done I had experienced a situation where when only shifted in 4LO position on the TC when power on the throttle during driving the vehicle there is a big gear jumping noise from the TC sort off like it is disengaging from 4LO position which also can be felt on the vehicle.
After stripe down had a measure of the chain comparing to new chain length, the old chain replaced had lengthen by 1/4” on length overall compare to a new one, so the technician suspected this was the caused like most of Toyota Prado’s which he had fixed a lot of such problem on a TC. Since the TC was tear down so I decided to replace all the internal consumable parts with aluminium shift yoke upgrade and visually inspected all gears that are all in good conditions with some very minimal wear on them.
After having a complete rebuild the TC according to service manual procedure with me helping my tech during the installation process step by step according to the service manual to my surprise on testing the new rebuild TC the disengaging and gear jumping issue on the TC become worse and shorter on each intervals when power on the throttle and this leads me to believe that the Encoder / Shift Motor at the side of TC maybe the problem to this issue.
Can anyone assist in comment and advise on how can I really confirmed the Encoder / Shift Motor is the problem and not the TCCM module for my 2008 H3 Adventure series ride ? The ride runs well and shift well on 4H Unlock and 4HL Locked mode no problem of any sort at all during driving at low and high speed when power on the throttle.
Just spend the last few days fixing and getting the MMW Tubular Upper Arm installed properly and had the alignment setup problem resolved now comes a new nightmare which can be expensive to fix ! Just having lots of headache one after another issue on this 10 year old H3 ride already spend a fortune getting all the chassis bushings, joints and suspension parts replaced and rebuild and now with this TC case problem can not really go wheeling anywhere until this TC problem is solved ! Damm [emoji26]
Before this rebuild was done I had experienced a situation where when only shifted in 4LO position on the TC when power on the throttle during driving the vehicle there is a big gear jumping noise from the TC sort off like it is disengaging from 4LO position which also can be felt on the vehicle.
After stripe down had a measure of the chain comparing to new chain length, the old chain replaced had lengthen by 1/4” on length overall compare to a new one, so the technician suspected this was the caused like most of Toyota Prado’s which he had fixed a lot of such problem on a TC. Since the TC was tear down so I decided to replace all the internal consumable parts with aluminium shift yoke upgrade and visually inspected all gears that are all in good conditions with some very minimal wear on them.
After having a complete rebuild the TC according to service manual procedure with me helping my tech during the installation process step by step according to the service manual to my surprise on testing the new rebuild TC the disengaging and gear jumping issue on the TC become worse and shorter on each intervals when power on the throttle and this leads me to believe that the Encoder / Shift Motor at the side of TC maybe the problem to this issue.
Can anyone assist in comment and advise on how can I really confirmed the Encoder / Shift Motor is the problem and not the TCCM module for my 2008 H3 Adventure series ride ? The ride runs well and shift well on 4H Unlock and 4HL Locked mode no problem of any sort at all during driving at low and high speed when power on the throttle.
Just spend the last few days fixing and getting the MMW Tubular Upper Arm installed properly and had the alignment setup problem resolved now comes a new nightmare which can be expensive to fix ! Just having lots of headache one after another issue on this 10 year old H3 ride already spend a fortune getting all the chassis bushings, joints and suspension parts replaced and rebuild and now with this TC case problem can not really go wheeling anywhere until this TC problem is solved ! Damm [emoji26]
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