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Author Topic: Ignition switch smoke when powering dump bed?  (Read 584 times)

ED-NY

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Ignition switch smoke when powering dump bed?
« on: April 27, 2017, 12:27:36 PM »

RE: 1994 K1500 cab on my 3500HD chassis, SBC, NV4500, TPI engine

Made a single cylinder dump bed with electric hydraulic pump...just noticed yesterday that as I raise the bed with truck running or not a slight amount of smoke escapes the column near the ignition switch.  If I let the bed raise intermittently...no smoke.

The battery I am using is only 670 amp and the hydraulic pump power feed comes off the starter solenoid.  Have any ideas why the smoke specifically in the steering column?
 
Eventually I'll run a second lift pump dedicated battery with a diode in the charging lead.  Maybe move the power feed from the starter to the battery? The only ground on the pump is from the mounting brackets to the frame.
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ED-NY

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Re: Ignition switch smoke when powering dump bed?
« Reply #1 on: April 28, 2017, 02:47:38 PM »

Think I fixed it..ran another ground cable from the frame to the engine..seems OK.  I suspect the smoke came from the horn button ground inside the column.
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