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

Manual Clutch Safety Switch

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Old Jun 5, 2019 | 08:51 PM
  #1  
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Default Manual Clutch Safety Switch

Car is an 89. I'm chasing a random no-crank symptom that does not reset after 4 or 5 minutes even when switching keys. Can take up to one hour.
  • Installed key cylinder resistor bypass at base of steering column.
  • New battery post bolts.
  • Preparing to bypass the starter enable relay.
When I push in the clutch, I clearly hear a relay clicking somewhere every time. Does this mean the clutch safety switch is working?
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Old Jun 6, 2019 | 04:15 AM
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Not sure but my clutch safety switch is bypassed, maybe do the same to eliminate the issue?
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Old Jun 6, 2019 | 08:25 AM
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Originally Posted by rblakeney
When I push in the clutch, I clearly hear a relay clicking somewhere every time. Does this mean the clutch safety switch is working?
That simply means something mechanical is moving and you can hear it. If you want to know if the physical switch is working. pull the connector, make up some jumpers with a battery powered light in it and plug it into the switch. If it goes on and off when you depress and release the clutch then the switch is likely good, if not then it's bad.

To bypass the switch, just make up a jumper that plugs in the connector that typically fits to the switch. That will act like the clutch is depressed so the car can start (all else working correctly). Remember though if you do this that the car can be started in gear now so be careful.
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Old Jun 6, 2019 | 11:23 AM
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Thanks, guys. I will attempt to get my fat butt under there and take a look. New switches are available but I understand that it is not an easy swap.
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Old Nov 12, 2019 | 07:31 PM
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For anyone that may be watching this, it turned out to be the starter bendix. New (rebuilt) starter and I am golden.
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Old Nov 12, 2019 | 08:16 PM
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good to hear you are fixed up and running again.
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