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reverse lock out help

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Old Oct 30, 2020 | 11:09 AM
  #1  
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Default reverse lock out help

Good morning all. I just bled the air from the supercharger cooling system. Afterwards the car will not go into reverse. There is a check engine display on dash, but no idea what it is referencing. All I did was attached hand vacuum pump to a hose on the fill port. Pulled vacuum and removed quite a bit of air. Afterwards I went to take the car off of the ramps, and can't get into reverse.
Quick search showed nothing.
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Old Oct 30, 2020 | 11:15 AM
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Double check the reverse lockout fuse. Not sure how that blew from what you did, but that was a problem for me once.
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Old Oct 30, 2020 | 11:27 AM
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Not sure what one thing has to do with the other. Disconnected the battery and now she is working. No clue why removing fill cap and vacuuming air out would cause a check engine light and lock out reverse. If someone knows, please educate me.
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Old Oct 30, 2020 | 01:07 PM
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That is very strange. Please let us know if something else happens/what you find out. I'm planning on doing that proceedure soon as well on my 16 Z06.
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Old Oct 30, 2020 | 01:35 PM
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I guess this procedure needs to be done a few times. I got a lot of air bubbles out. Air space in the reservoir got smaller. Then ran the car. Reservoir air bubble got larger. Presume most of the air I got out came from the bricks, HX, and lines. Not a difficult procedure to do, so no problem doing it a few times. Will update with anything I find.
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Old Oct 30, 2020 | 01:45 PM
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Default Z06

Originally Posted by Buddy A
I guess this procedure needs to be done a few times. I got a lot of air bubbles out. Air space in the reservoir got smaller. Then ran the car. Reservoir air bubble got larger. Presume most of the air I got out came from the bricks, HX, and lines. Not a difficult procedure to do, so no problem doing it a few times. Will update with anything I find.
Glad to hear that. I'm going to have to look up the proceedure. Old guys memory. Lol
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Old Oct 30, 2020 | 02:06 PM
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I'm in that same group.
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Old Oct 30, 2020 | 02:18 PM
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For future reference, the lock out solenoid is designed to be overridden in an emergency. If the Solenoid fails in the lockout position it can be forced to let the shifter enter reverse. It is designed to do this so the car can be put into reverse if the solenoid fails in the wrong position. It is spring-loaded and if sufficient force is used the spring can be depressed letting the shifter move into reverse.

Bill
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Old Oct 30, 2020 | 02:22 PM
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Originally Posted by Bill Dearborn
For future reference, the lock out solenoid is designed to be overridden in an emergency. If the Solenoid fails in the lockout position it can be forced to let the shifter enter reverse. It is designed to do this so the car can be put into reverse if the solenoid fails in the wrong position. It is spring-loaded and if sufficient force is used the spring can be depressed letting the shifter move into reverse.

Bill
So just don't be a little girl as I attempt to put it into reverse? Didn't want to go all bull in a china cabinet. Scared to damage something. Would not go with car off either.
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Old Oct 30, 2020 | 04:32 PM
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Originally Posted by Buddy A
I guess this procedure needs to be done a few times. I got a lot of air bubbles out. Air space in the reservoir got smaller. Then ran the car. Reservoir air bubble got larger. Presume most of the air I got out came from the bricks, HX, and lines. Not a difficult procedure to do, so no problem doing it a few times. Will update with anything I find.
Did you raise the front of the car at least 2'?

Ron
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Old Oct 30, 2020 | 05:06 PM
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No. Ramps only on the inclined driveway. I plan on doing it again in a few days. Will be raising it higher.
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Old Oct 30, 2020 | 06:53 PM
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Do you have a pic of how you pulled a vacuum on the fill port?
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Old Oct 30, 2020 | 08:27 PM
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I didn’t get pictures while doing it, but this should help. Also there is a write up on here with details.





Assembled

Remove cap by removing the wire retaining clip and then sliding the hose over it.
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