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

87 Reverse lock out problem

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Old Jan 20, 2014 | 04:33 PM
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Default 87 Reverse lock out problem

The hydraulic clutch went south so I had the master and slave cylinders replaced--fixed that problem. What has happened is that it is now hard to get the reverse lock out to work consistently. I have to stomp really hard several times to get it to start the car. Does whatever switch that is hooked to the system get tripped off the hydraulic cylinder and do I have to rebleed the system to get consistent results or is there some type of adjustment to the switch needed???
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Old Jan 21, 2014 | 07:56 AM
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The neutral start switch knows nothing of the hydraulics, it is a simple open and closed switch.
Time to crawl under the dash to test and adjust.
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Old Jan 21, 2014 | 09:32 AM
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Is it possible you bent the bracket for the clutch safety switch when the system lost fluid or when you were bleeding?
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Old Jan 25, 2014 | 02:59 PM
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Where is the switch located?
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Old Jan 25, 2014 | 05:14 PM
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Default Clutch

I'd guess either misadjusted pedal to master slave shaft or air in the line. If you're pumping the pedal several times, that's a symptom of air (been there, wrote the book). Get the air out and it will likely work.
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Old Jan 26, 2014 | 08:39 AM
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Originally Posted by noyo55
Where is the switch located?
Top of clutch pedal
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Old Jan 26, 2014 | 08:49 AM
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If the switch is out of adjustment or on the way out, bleeding the hydraulics is a waste of time. As 86 suggested, get underneath and find out what has happened. The clutch rod is a biotch if you dont put it on the pedal before tightening to the firewall. Its possible if this procedure wasnt followed the switch may have been moved around.
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