hi there,can any one help with my gearbox fault,when i put the car into gear it creaps forwards in both drive or reverse so i have to keep my foot on the brake or take out of gear.
it has been on a vauxhall (tech 2 test)and has come up with (B-01 C-15)(PRESSURE CONTROL SOLENOID CIRCUIT) then (E01) RESULT defective component is K85 control unit-automatic transmission OR U10 intermediate housing ASM-automatic transmission pressure regulator.
i have also been told by someone that works with hgvs gearboxers load of rubbish all that it NEEDS IS A NEW FILLTER IN THE GEARBOX AND FLUID ie gearboxs service can any one help me please

mr mark pearson, June 2010

First a filter and ATF change is NOT going to fix this and whoever told you that is talking rubbish. This box is fairly reliable but can suffer with alternator overcharging or non genuine spark plugs upsetting the gearbox computer. You say it creeps forwards in both forwards and reverse, so do you mean it doesn't actually go backwards and if so does it drive in Neutral? Is the tickover too fast? The fault on the pressure soleniod / circuit could be on the case connector. The excessive creeping and this circuit I'm fairly sure is not linked. The transmission can be checked independently of the vehicle computer with a TranX 2000 It can be driven with this on and pressure can be altered etc. as it going. Check out www.fedauto.co.uk for specialist in your area.

mags, June 2010