Top 20 1991 Jeep Wrangler - Page 5 Questions & Answers

I know a lot of people who have jeeps and operate them off road. Usual problems include loose steering from worn or damaged suspension and/or steering components and a bumpy ride due to blown bushings, shocks, or suspension components as well. Yours may not have endured the same abuse but I'd suggest first checking your tire pressure, tread for even wear on all tires and then I'd have an alignment done (if you have damaged components they will tell you before they can align your vehicle) and that will give you an idea of what is wrong with it

1991 Jeep... | 189 views | 0 helpful votes

Hi, Unless it rusted so bad or if you or a previous owner hit something with the tank I think you can rule out the tank itself leaking. I would say its most likely the braided hose that comes right out of the tank and feeds it towards the engine bay. I had a situation with my mitsubishi 3000gt where the cap of the fuel pump had a small metal pipe coming out of it that was threaded in which the braided hose would go onto, and the metal pipe was just corroded and leaking from there. If this is the case, you would need to replace the fuel pump. It's hard to say without visual inspection.

1991 Jeep... | 90 views | 0 helpful votes

If the blower works check for coolant in the cooling system. Test operation of thermostat. Check heater control valve for proper operation if equipped. Pressure test cooling system to ensure system holds pressure (this will help you identify a leak, if any. If car does not over heat and cooling system is in good working order, then the heater core is clogged.
If the blower does not work Check fuse, relay, wiring for short to ground, apply direct battery voltage to blower motor. If blower motor turns on and fuse/relay and wiring are ok replace the switch.

1991 Jeep... | 451 views | 0 helpful votes

Hi Alex,

They are a pain the first time. There is a deceptively easy trick to it. I wrote out the step by step for taking it off / putting it on.

Click here for the trick

Hope you find it helpful


1991 Jeep... | 312 views | 1 helpful votes

Did you change the computer with it? ECM

1991 Jeep... | 105 views | 0 helpful votes

do yoy have enough (any) fuel pressure

1991 Jeep... | 87 views | 0 helpful votes

Sounds like a compression ring in one of your cylinders has broken and compression is being pushed into oil pan. Cylinder compression getting past the piston, instead of going out the exhaust it's going into oil pan and coming through engine (dipstick, air cleaner, PCV.) You'll need to have a compression test to confirm.

1991 Jeep... | 153 views | 0 helpful votes

Yes - but it is not very easy. You'll need to run a wire from your positive battery wire to the motor harness under the seat. Some harnesses have a red,blue,or green wire along with a black. Depending on which package your jeep has and which direction you want to move it depends on which wire you need to tap in to. You may also have luck if you remove the seat switch panel from the side of the seat and run your jumper to the corresponding terminal to move the seat. My 93 has bad switches and so I set my seat where I wanted it and unplugged the motor so nobody can move it accidentally.
Hope this helps and please rate my solution!!

1991 Jeep... | 264 views | 0 helpful votes

I would first check the vacuum disconnect on the front axle (dana 30). The vacuum lines often become clogged and/or broken, especially when wheeling a 20 year old Jeep. My solution for my '93 YJ was the cable option which replaces the vacuum one (try Quadratec). This way I had a more positive feeling and no more vacuum issues to worry about.

1991 Jeep... | 215 views | 0 helpful votes

Hi and welcome to FixYa!

Surely an alternator failure. The carbon of the alternator is worn out or the internal capacitor is faulty that's why it blows the fuse and drain the battery. An alternator replacement will surely be helpful.

Hope this helps and thank you for using FixYa! Have a good one!

1991 Jeep... | 126 views | 0 helpful votes

The belt cost about $35 at Autozone, and it depends on the garage on cost, I would say no more then $50 to do this.

As a side note it takes about 10 min or less to change this belt with a simple hand tools, however replacing the belt tensioner is recommended if worn out, as this will eat your new belt.

Hope this helps.

1991 Jeep... | 143 views | 0 helpful votes

Start here -

1991 Jeep... | 24 views | 0 helpful votes

Mate.Check the power steering fluid.It usually lets out a scream when it's low.Hope this helps

1991 Jeep... | 575 views | 0 helpful votes

at the front of the power steering pump you will see a nut over a slot loosen that up on the back side of the pump the is another bolt in a slot loosen that up and the one above it as well under the pump there is a bolt using a socket tighten this screw this will tighten the belt. Retighten all the other bolts wehn done do not over tighten the belt it will ruin the bearing and case early belt wear.

1991 Jeep... | 182 views | 1 helpful votes

The p0304 code is a misfire on cylinder 4 (the last number indicates the cylinder). Check the plug and compare to the others. The plug should be a grey peach colour. Now check the plug lead end socket. There should be no signs of tracking through the insulation to the cylinder head. Check the high tension lead resistances. If lead 4 is much higher resistance than the rest, replace it. Now take a look at the distributor cap, make sure that there are no signs of tracking on the interior or the cap is cracked. Ensure that the contacts and distributor arm are clean and free of build-up. Since the error is specific to one cylinder it is likely that the coil is OK.

1991 Jeep... | 185 views | 0 helpful votes

if you still have the heads for the bolts showing,use a "stilson"to undo the bolts then renew time use a ring spanner or a socket.NEVER use an open ended spanner,unless the bolt/nut is LOOSE. (another "trick" is to weld a nut to the head of the bolt.)

1991 Jeep... | 228 views | 0 helpful votes

Under hood, driver side, lower engine area, front of distributor, mounted in engine block.

It looks looks this;


1991 Jeep... | 212 views | 2 helpful votes

you could check your catalytic converter it may be clogged

1991 Jeep... | 200 views | 0 helpful votes

you said the starter looks new, if so check to make sure the starter bolts are tight on both sides if the starter gets cocked sideways it will put a bind on the starter. Also take your vehicle to Autozone they will check the battery for free....If it is a everstart take it back to wall mart it will have a 3 to 5 yr. warenty on this battery.

1991 Jeep... | 114 views | 0 helpful votes

Find out exactly where it's leaking fluid from before replacing anything unnecessarily. It could be a simple line leak.

1991 Jeep... | 62 views | 0 helpful votes

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