406 erratic auto box

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monument7
Posts: 1
Joined: 05 Jun 2008, 22:43
Location: tyne and wear
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406 erratic auto box

Post by monument7 »

Heres a one for you tech boys.
I have a 2001 406 1800 auto thats playing up. I had a problem not long ago when I went through a deep puddle which cut the engine but after a while it fired up ok then this happened.
At first it would lose drive while driving and would sometimes disengage when standing at lights but would always run in reverse ok.
Eventually it lost all forward drive so I had it on diag machine. This said something like permanent fault and no signal and the guy said the box is u/s which i thought was through to water getting into it. Can't remember exact words but have them written down somewhere. Any road up I have booked it into a gearbox specialist next week who's first words were "dont take the box out it could be electrical ". Today out of curiosity i started it, selected drive and nothing. I pressed the three buttons next to the gearlever and the blimming thing went into drive and moved.
Any ideas and suggestions would be more than welcome.
Thanks
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AndersDK
Posts: 6060
Joined: 21 Feb 2003, 04:56
Location: Denmark
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x 1

Post by AndersDK »

My bet on the electrovalve controlbox that governs the gearchanges. Its commonly located on the underside of the box and supposed to be well sealed ...
Anders (DK) - '90 BX16Image
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