Join Date: Mar 2012
Location: Abbotsford BC
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quick question about wires
i have an '03 7.3 f350 and i'm doing a little troubleshooting to try and figure out some intermittent cold start/no start issues
on the glow plug relay there is a brown wire and a yellow wire on the load side... does the yellow wire do the bank of glow plugs on one side of the engine and the brown wire does the other side?
it all seems to be working fine and all glow plugs seem to be working fine as long as that is how the wiring goes. i metered out the wires with my clamp on dc ammeter, the yellow and brown are each drawing a little over 50 amps with the key on ignition on and the engine cold.
other question is how long should the glow plugs be on because they are definitely drawing current much longer than the glow plug light on the dash stays on, even while the engine is running.