C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

1984 c4

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Old Nov 16, 2014 | 12:51 PM
  #41  
Tom400CFI's Avatar
Tom400CFI
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I can't remember if the fuse is before or after the ignition switch in the circuit. Probably before, but can you have someone hold the key in "Crank" position like you're trying to start it, and then check for power at that fuse again?

EDIT: More looking dug up this (thanks to Vettoz)

I don't know what the fuse does or protects. Looking at the diagram, starter should crank even if the fuse is blown.

Someone correct me if I'm wrong, but I'd go back to testing for power at the red and also the yellow wires at the ignition switch (base of steering column).

Good reading HERE

Last edited by Tom400CFI; Nov 16, 2014 at 01:09 PM.
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Old Nov 16, 2014 | 08:21 PM
  #42  
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From: Clifton Park NY
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Originally Posted by Tom400CFI
I can't remember if the fuse is before or after the ignition switch in the circuit. Probably before, but can you have someone hold the key in "Crank" position like you're trying to start it, and then check for power at that fuse again?

EDIT: More looking dug up this (thanks to Vettoz)

I don't know what the fuse does or protects. Looking at the diagram, starter should crank even if the fuse is blown.

Someone correct me if I'm wrong, but I'd go back to testing for power at the red and also the yellow wires at the ignition switch (base of steering column).

Good reading HERE
If it were me..
I would test for 12V between the purple and ground on the solenoid
If no voltage... I would then test for 12V on the load side of the neutral switch... if still nothing... work backwards from there. If I did have 12V at that point I would then move to the starter interrupt relay and do the same thing. Test the load side. At that point you can move on to the coil of that relay if need be.

Just saw his video,
Tom you right... I would start testing from the ignition switch to the line side of that fuse. May have a broken or bad wire

Last edited by qws; Nov 16, 2014 at 08:54 PM.
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