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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Diesel Engine Discussion => Topic started by: dbc28092 on June 16, 2014, 11:17:54 AM
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I just bought a 84 Chevy C30 with the 6.2L diesel. This is my first diesel. I'm working on a few issues with the truck. First thing is with cranking. Most of the time, the truck fires right up but every once in a while, all I get is a single click. If I keep trying, it will eventually turn over. The batteries are new and check out good. The alternator tests good. Where should I look next - starter, relay, solenoid? Also, the glow plug controller has been bypassed with a manual glow plug switch.
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More than likely you have an issue with the starter solenoid, but the armature commutator and brushes may also be worn and beginning to burn.
A manual switch that by-passes the glow plug controller usually results in glow plugs that are burned out.