Top 10 1991 Jeep Wrangler Questions & Answers

Hello everyone,l

For those of you who haven't started removing the gas tank, I'll start from the beginning.
You will need a 1/2" socket, ratchet, extensions, flat head, needle nose, floor jack, rag, broomstick,. A creeper will make this easier. Depending on your dimensions and the height of the frame on your particular vehicle, you may be able to use it without jacking the vehicle up..

• Disconnect the negative battery terminal
• If your engine is fuel injected, you need to relieve the line pressure. This is done from the injector rack on top of the engine. About the center of the rack you will find what looks like a filler valve on your tire, only thicker. The fuel line can maintain over 40 P.S.I. pressure even with key off. Place a rag over the pressure relief valve. Use the corner of a screwdriver to poke the center core through the rag. A second or two should do it.
  
• Place a floor jack under the gas tank shield, jack it up until snug.
• Disconnect the rear exhaust hanger.
• Loosen and remove the three shield nuts above the rear end
  
• Remove the plastic shield from beneath the left rear corner. Two plastic anchors hold it on. Disengage them by pulling the center plug out about 1/2". This will expose the hoses connecting the tank to the body.
  
• Loosen the hose clamps
  
• If you can get them to twist, try and get them off.
  
• Rear nuts next. Loosen and remove all but the center one.
• Make sure the jack is centered and snug
  
• Remove the last nut. The tank isn't going to DROP. It will kind of lean, and jam against the exhaust.
• Insert the broom stick into the exhaust pipe.
• Push and hold it to the right, slowly let the jack down. Stop if it hangs up and work it free.
• When its down far enough to access the top of the tank, disconnect the plug, loosen thew hose clamps, remove the hoses, separate the vent hoses at the 'T' connector.
• Lower it the rest of the way
• The tank can now be separated from the shield.

If you were experiencing a line leak, the top of the tank is where you'll find it. Inspect hoses, gaskets and connections

slave cylinder needs replaced

There is a bleeder on the drivers side of the transmission follow the tube from the clutch master cylinder if you cannot find it. Pump the clutch up and hold it down then open the bleeder repeat till air is gone. May have to bleed again after driving a bit. If you want to bleed the clutch master cylinder run a tube from where the line goes into the cylinder and take the cap off and run the tube into the fluid (make sure its in the fluid) then pump the clutch slowly until no air bubbles. I just replaced my clutch master cylinder this is where the information comes from hope it helps you out!

check the linkage from gearstick to gearbox

The Starter relay is bad.

U have what is called a hydraulic clutch, one of the hydraulic cylinders hs failed, there is a master and a slave cylinder. The most likely and most common cylinder to fail is the slave cylinder, this requires the transmission to be pulled out to replace it. the art is around $125.00, while the trans is out u might as well replace the clutch, the labor is about the same. Here is a picture of the part, let me know if u can see it.

It sounds as the voltage regulator which is built into the back of the alternator has stuck. Occaisionally this even happens on new ones. Would suggest taking the alternator back as it shoud be under warranty.

1. Fill master cylinder reservoir with DOT 3 brake fluid. Raise and support vehicle. Attach bleeder hose to bleeder screw on bleed line of slave cylinder. See Fig. 1 (attached in link) . Place other end of hose in glass container 1/2 full of brake fluid. Loosen bleeder screw while holding bleeder screw fitting.

2. Have an assistant depress clutch pedal to the floor. Tighten bleeder screw and release clutch pedal. Repeat bleeding procedure until fluid entering container is free of bubbles. DO NOT allow reservoir to run out of fluid during bleeding. Refill clutch master cylinder reservoir.

CAUTION: DO NOT allow bleed line to bend or flex when loosening
bleeder screw.

FIG1: http://anubiscycle.com/fixya/91wranglerslaveassy.png

I'm assuming you mean the box under your dash

if this isn't what you want let me know

Can't push clutch pedal in - JeepForum.com

www.jeepforum.com > ... > TJ Wrangler Technical Forum

Dec 11, 2010 - 7 posts - ‎3 authors
Driving home last night and the clutch pedal falls to the floor. ... Forums > TJWrangler Technical Forum > Can't push clutch pedal in ... Comes back up but then Ican't push it back in at all, even trying to stand on it, won't budge. Clutch locking up?
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1998 Wrangler Sahara - Won't go into gear! Help please! - Jeep ...

www.wranglerforum.com/.../1998-wrangler-sahara-wont-go-into-gear-h...

Oct 5, 2010 - 22 posts - ‎7 authors
With the engine off, i can push the clutch in, and shift through all the gears ... to move - the clutch isn't disengaged even with the pedal fully depressed. .... Also, trying to bleed the system, can't find the bleeder screw. .... 1991 Jeep Wrangler Stuck In Gear? jeffasel, YJ Tech Forum, 5, 10-19-2010 09:42 AM. Getting difficult to push clutch pedal down, HELP
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