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ahazen

ahazen 8/5/2012

1993 Chevrolet C2500 Cheyenne 8 Cyl 5.7L

Engine

Turn on key to start truck nothing happens

Just before the truck stoped working. It would take a few times turning the key to get it to run. There was a clicking sound and then nothing. Replaced battery, Starter, and ignition starter swich, still nothing.

1 Answer


CVO

CVO 8/5/2012

Check the wiring for clean, tight connections. The starter motor may draw several hundred amperes during cranking. Loose or dirty connections will cause excessive voltage drop.
Cables should also be checked for correct gauge size. These cables should also be inspected to see if they are too long. Excessive length causes excessive resistance.

See this Starting system simplified diagram. Have a help from an assistant to crank the engine, use a 12 volt light tester or a digital voltmeter, apply it to the starter control circuit.
If there is light or 12 volts and the starter isn't cranking, then the starter is the culprit. Have the starter to bench test for free at the local auto parts stores.
If there isn't no light or no volts, then the ignition switch is the culprit.( may not be the case )
Check the starter relay and position the shifter from park to neutral.

http://www.samarins.com/glossary/starter.html

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CVO

ahazen 8/5/2012

Had starter tested at auto parts store, and battery,all good.
Replaced cables, replaced ignition starter switch which was not the right fit from the old one. Now key switch will not release key. when taking off old ignition starter switch fell apart. The new one is much smaller to line up with old holes and the rod from key switch is now to long.

CVO

ahazen 8/5/2012

Thank you for helping

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