There is no vacuum line for reverse. the transmission uses fluid and silanoids inside for reverse. if reverse isn't working the low/reverse band is blown. you can test it by driving and manually downshifting into 1 and if it downshifts through all gears but wont downshift into 1st (feel the truck slowing down from engine braking) then your band is broken. time for a trans rebuld
SOURCE: vacuum line diagram 98 chev monte
No sticker on underside of hood or on rad support showing that?
SOURCE: Need vacuum diagram
I can't send you a diagram but I can tell you the basics that should get you mobile. Take a vacuum line from the lower front of your carb and hook it to your distributer vacuum advance. Take another from the front of your carb and run it to your EGR valve. It should be beside the carb on the intake manifold. At the rear of your carburator there is a large line coming out. It should be steel. It provides vacuum boost to your power brakes. Hook it up. Make sure all other vacuum outlets on the carb and intake are blocked off and you should be able to get mobile.
SOURCE: 02 Chevrolet Silverado z71 5.3 L wont go into reverse
Usually reverse is the first gear to go out in these transmissions (auto) probably a 4l60E model transmission Im guessing
SOURCE: need vacuum line diagram for 1990 Chevy Silverado
The vacuum diagram for the truck should be printed on a factory sticker right next to the hood latch inside the engine compartment. If its missing or ruined you could try looking inside a Chilton or Haynes manual.
under the intake manifold on a 5.3,theres 2 of them
http://schematicsdiagram.blogspot.com/2011/12/vacuum-hose-routing-diagram-for-1995.html
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VACUUM DIAGRAMS For Audi A4?
http://repairhelpcenter.blogspot.com/2011/11/vacuum-diagrams-for-audi-a4.html
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VACUUM DIAGRAMS For VW Passat?
http://vwrepairhelp.blogspot.com/2011/11/vacuum-diagrams-for-vw-passt.html
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Vacuum line diagram For 1996 Chevrolet
Lumina?
http://schematicsdiagram.blogspot.com/2011/12/vacuum-line-diagram-for-1996-chevrolet.html
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Vacuum Hose Routing Diagram For 1995
Chevrolet Corvette Throttle Body?
http://schematicsdiagram.blogspot.com/2011/12/vacuum-hose-routing-diagram-for-1995.html
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Vacuum diagram for Isuzu?
http://technoanswers.blogspot.com/2012/01/vacuum-diagram-for-isuzu.html
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Ford 4 wheel drive vacuum solenoid working system?
http://technoanswers.blogspot.in/2012/02/ford-4-wheel-drive-vacuum-solenoid.html
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These will help.
Thanks.
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