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TX4 Euro6 - Gearbox?
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Author:  XH558 [ Sun May 19, 2024 12:19 am ]
Post subject:  TX4 Euro6 - Gearbox?

Midway on an otherwise promising night, the cab did a rough downshift pulling up at a junction. From then on, it seems to be stuck in 3rd gear although 1st and 2nd work with the lever. Turned off and restarted - same but steady engine management light comes on as soon as it's running. Noticeable 'lurch' going into D or R. So my work for this weekend is done.

Gearbox serviced 6 months ago at reputable place, fluid on the mark and looks clean. Never two-foot the pedals.

I'm guessing it's now storing a fault code which will need read/cleared anyway, and see what that says.

Otherwise, does this sound familiar to anyone?

Author:  XH558 [ Wed May 22, 2024 12:59 am ]
Post subject:  Re: TX4 Euro6 - Gearbox?

Interim diagnosis - faulty gearbox solenoid pack.

Replacement part is around £450 and fitting requires opening the pan, so add another £150 for a filter kit and Chrysler ATF+4 fluid plus labour. I've put the job on hold just now - when I set off to the garage, the fault had self-cleared and the cab is back to driving normally (so to speak and for now).

If it helps anyone else, the engine sensors (cam/crank/MAF etc) can cause the same gearbox symptoms described in the first post. The software scan checked and cleared them this time.

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