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I have a 1980 chevy b6o school bus. Won't crank, have

I have a 1980 chevy...
I have a 1980 chevy b6o school bus. Won't crank, have changed starter, key switch, ignition module, still no luck. starter will spin if you jump across the contacts. Any ideas?
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Answered in 6 minutes by:
3/11/2018
roybelding
roybelding, Shop Foreman Freightliner trucks
Category: Medium and Heavy Trucks
Satisfied Customers: 7,930
Experience: Shop Froeman for Freightliner Trucks
Verified

hello, my name is ***** ***** I will be glad to assist you. please allow me a couple of minutes to gather some basic info.

Roy

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Ok, what engine and what trans??

Roy

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Customer reply replied 5 months ago
350 chevy, 5 speed manual

ok, it is a basic circuit.

the power goes from the ignition switch to the clutch pedal switch and then to the starter solenoid. did you check for power to the clutch switch with the key in the start position??

Roy

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Customer reply replied 5 months ago
No, where is the clutch petal switch located?
Customer reply replied 5 months ago
Is that a switch that won't start unless the clutch is pushed in? Never had one, unless it was disconnected previously

should be on the clutch pedal. correct, it will not close until the pedal is depressed

Roy

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Customer reply replied 5 months ago
Never had to push the clutch in to start before

it may have been bypassed. look under the dash for the wires and possible bypass. check the color of the wire off the ignition switch that is hot in the start position. most of the time it was a yellow wire. then follow it to that area.

Roy

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Customer reply replied 5 months ago
Ok let me check on it tomorrow, dark now.

ok

Please take a moment and rate my service 3 stars or better. that is the only way the site will pay me for my efforts.

Roy

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Customer reply replied 5 months ago
done. thanks

your welcome

roybelding
roybelding, Shop Foreman Freightliner trucks
Category: Medium and Heavy Trucks
Satisfied Customers: 7,930
Experience: Shop Froeman for Freightliner Trucks
Verified
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roybelding
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roybelding, Shop Foreman Freightliner trucks
Category: Medium and Heavy Trucks
Satisfied Customers: 7,930
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