Cost for timing belt replacement, 1991 wrangler

http://serpentinebelthq.com/1991-jeep-wrangler-yj-4-0l-serpentine-belt-diagram/ her is a link for you to a diagram. I hope this helps

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.

1991 4 cylinder with no AC

This is the correct diagram for non-AC vehicles.

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

Mike

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.

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.

4 hours

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.

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
Mike