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  1. #1

    Default 1986 GMC K3500 ignition problems

    I have an 86 K3500 with a 6.2l diesel that won't start. The power cable from the battery to the starter melted on the manifold and shorted out the starter. I replaced the starter and rerouted a new battery cable but it won't turn over now. If you turn the key I get no lights on the dash, no buzzer, no glow plugs. I'm curious if I could have fried the ignition module, or if I have an ignition module and where that may be. Battery is good the headlights work an I can even lift the dump body and plow so I know have plenty of juice. I really need help any input is welcomed.

  2. #2


    Check all fuses - with a meter.

  3. #3


    Quote Originally Posted by chengny View Post
    Check all fuses - with a meter.
    All are good

  4. #4


    Check the wires going to the ignition switch, and the switch itself.

  5. #5


    Need a new Alternator?...happened to me on my old hunting truck...the wire fried and shorted out the alternator and even the startor...lights wouldnt work nor dash lights but after new alternator,all was good!

    2009 Chevrolet Silverado 1500 LT Z71 Crew Cab "All-Star Edition"

    Line-X'd Bed
    Line-X'd Custom Brush Guard(Heavy Duty)
    5.3L Flex Fuel
    275/65R18 Toyo Open Country AT2's
    2" Rough Country Leveling Kit(want to get the 2.5 RC kit)
    EGR In-Channel Vent Visors
    Exterior PLUS Package
    Interior PLUS Package
    K&N Drop-In Air Filter
    Cat-Back Dual Exhaust
    Black Bowties
    Diablo Sport Predator(AFM Disabled)
    Towing Mirrors
    Next Planned Mods
    Blacked out Tail Lights
    Aftermarket Rims

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