Question about 1991 Jeep Wrangler

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Cost for timing belt replacement, 1991 wrangler

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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.

Posted on Dec 29, 2010

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1 Answer

Free belt diagrams her is a link for you to a diagram. I hope this helps

Jul 08, 2014 | 1991 Jeep Wrangler

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How to install a serpentine belt on a 1991 jeep wrangler with a 2.5 engine without power steering

There should be a sticker in the engine compartment that shows the routing and you should be able to hold the tensioner back with a 3/8's ratchet with a long handle.

Jul 07, 2014 | 1991 Jeep Wrangler

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How do you remove the serpentine belt off a 1991 jeep wrangler 4.0 6 cylinder?

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


Dec 26, 2010 | 1991 Jeep Wrangler

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Belt diagram for a 91 wrangler 2.5

Hi. look carefully under the hood as there is usually a sticker showing this. Also, look in the owner manual. If all else fails go to any NAPA store and ask them for a copy of the diagram from their database. J.

Jul 31, 2010 | 1991 Jeep Wrangler

1 Answer

What do you loosen to remove serpentine belt from 1991 jeep wrangler with ac and power steering. thanks 4 cyl. 2.5

There is an idler pulley close to the power steering. Loosen the bolt that goes through the front of the idler pulley first. Then you will see the head of a bolt looking up at you. Turn the bolt clockwise to tighten and counterclockwise to loosen. The pulley is attached to the threaded bolt and it moves the pulley up or down as needed to adjust the belt tension. When the belt is replaced turn the bolt until the belt is tight. Remember to check the belt again after a few hundred miles. A new belt will stretch and loosen.

Dec 08, 2009 | 1991 Jeep Wrangler

1 Answer

Does the 1991 Wrangler 4.0L have a self tensioner

Sounds like you have all the info you need but are afraid to try the job. Look under the P/S pump and you should see a bolt that runs under it (left to right). You don't loosen the pump pulley, but actually you loosen the pump itself. Loosening the bolt underneath will remove tension from the belt, tightening it will restore tension, but only after loosening the two bolts that allow the pump to slide back and forth on the mount bracket. Make sure you know where the belt goes before taking it off (draw a picture if you need to) and, remember it is very easy to overtighten it. after installing, belt should have about a half inch of deflection. Check this befrore starting and again after about an hour of running.

Nov 09, 2009 | 1991 Jeep Wrangler

1 Answer

Belt replacements

Hi Saul,

I've got an '86 Cherokee Laredo 2.6L and a '91 Wrangler too. It's got a 4.0L inline six cylinder. But it has a serpentine belt.

Comment me back and tell me which components will be attached to the belt in question. That way I can tell you which of them gets used to install the belt.

You will need a socket set and a pry bar for the procedure.
Let me know

Jun 13, 2008 | 1991 Jeep Wrangler

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