by mnxtrany » Tue Oct 24, 2017 8:27 pm
Looked for where the wires/harnesses came from/went, inside the cab.
Felt around for the wires/harnesses and pulled as best I could = not much movement.
No moving parts near the harnesses.
Most likely place was where the door opened/closed - a gator with the harness for the speaker and central locking wires.
Bollocks of a job getting the gator out.
Inside the gator 3 wires with split insulation, splits about 6 mm apart on different wires when not in situ, pos' closer together when in the gator.
Yellow and yellow and black = power to the central locking. Grey and red speaker return wire.
Odd how the speaker worked if the power was applied to the return side.
Pos' limited duration of current flow. From power wire to return through speaker solenoid and into speaker power supply wire which could have been 3 mtrs long to the radio, into the radio.
Could not see how the wires could touch unless they touched when in situ - pos' water intrusion, condensation/evaporation within the door going up via the harness into the warm cab leaving residue in places. Was water in the door - on sides and harnesses.
Splits were about half way around the wire, at 90 degrees to the wire, they looked dirty, they were under insulation tape that had very sticky goo.
Cleaned off and taped the splits and back together - so far no more noise from the speaker.
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Ford Transit, 3.5, Mk6, 2.4 (90PS) 88.76 HP 66.19 KW Duratorq DI diesel, 2000 Luton back, Tail lift, MWB, DRWD.