belt tensioner is missing

How do I adjust the tension on my 99 xj with a 4.0

through the power steering pump. there are 4 bolts and a tension bolt.

lil_red_wagon said:

through the power steering pump. there are 4 bolts and a tension bolt.

Click to expand...

Up until '95. '96 and later have the adjustable idler/tensioner pulley IIRC.

0. Go to a junkyard and get a spare power steering pump bracket, idler pulley, and idler pulley tensioner bolt assembly for ten bucks. There are a bolt or two on the front of the block, a bolt on an arm down below the exhaust manifold, and three bolts up by the power steering pump holding this in, it can be removed or installed without dropping the engine if you use a little ingenuity.
1. Loosen the bolt in the center of the idler pulley
2. Find the 14mm (I think, might be 15 or 16) bolt head right below and to the right of the temperature sensor on the thermostat housing. Loosen/tighten this as desired.
3. Tighten the pulley bolt back down

there is a step right after 1 or 3 where you replace the assembly with the one you got at the junkyard because your tensioner bolt torqued off, that's why step 0 is there - cheap insurance. I kept my old assembly as a spare, eventually I'll get around to soaking it in PBBlaster for long enough that the bolt will unfreeze.

lil_red_wagon said:

through the power steering pump. there are 4 bolts and a tension bolt.

Click to expand...

Nope


The yellow arrow points to the idler pulley.
The orange arrow points to the bolt you need to loosen first with a 15mm socket.
The red arrow points to the bolt that when tightened or loosened will move the pulley, increasing or decreasing tension on the belt.