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electric problems daf 85?

common problems daf 85,when useing h/light flasher or spotlights,heater blower,etc they interfere with tacho warning light which leads to problem with as/ tronic g/box.Brand new g/box fitted.g/box people blame truck electrics.I,v had it on computer at foden dealer and they don,t really seem interested i think it,s a problem with cab wiring maybe bad earth or under cab at n/side anyone got any ideas please?05 reg foden with daf cab

mally boy
February 2011
hi
as you say make sure all the earths are 100% ..espically the batt earth to the chassis ,remove clean to bright metal refit ,.the engine earth ,if xe engine with upec,i think earth is on o/s on the bellhousing .if i remember correctly there is a fresh hole next to the one used that you can screw in to ...and not forgetting the good old starter ...

will admit in 15 years with DAF haven't ever heard of that fault .so wouldn't say it was common..you mention you had it at foden and they weren't interested ,don't you have a local DAF dealer ???...you could run fresh 4 core wire from the bulk head to the tacho ..hope you didn't renew the box because of the fault ...but start with the earths ...and then see hoe it goes

norb
February 2011
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