The bolt holding the pulley to the tensioner arm is left hand thread. The nut holding the tensioner to the engine is right hand thread.
Yes, on a 3.3 or 3.8 the serpentine belt pulley does come off the tensioner arm but the bolt is left thread not right handed.
You pry it over enough to remove the belt. You loosen the tensioner pulley bolt and thread the adjuster bolt backwards on a 4.0L.
Its a left hand thread hold the other side of the metric cresent wrench
Remove serpentine belt and have new tensioner ready, look at it the bolt holding it to the block may be lefthanded thread usually 18 mm. Mosy gm parts are bolted on with metric so try to take it off with left handed thread (clockwise first) if that isn't it then do the normal way put belt back on. A belt tensioner tool is a good investment. they ar eat autozone and cheap and make the job a 5 minute task
No it is not. The bolt on the pulley is but the tensioner mounting bolt is a T55 torx bit head with the standard thread (right/tight left/loose).
standard thread on the 99 model with 4.0 liter.
The bolts are right hand thread (BUT) U DON"T want 2 remove the bolt in the center of he pully.U have 2 replace the tensioner & bracket assembly.There is many pounds of pressure on the tensioner spring
Remove belt and tensioner complete should be able to be unbolted from engine (Left-hand thread)
Mounted with "left-hand" thread
use a wreench on the bolt for the tensioner pulley and take the belt off and tehn thread the belt back on using the schematic on the fan shroud. If theree isn't one, draw a schematic BEFORE you remove the old belt.
THERE IS A STICKER ON THE LEFT SIDE ON TOP OF THE PULLEY'S IT SHOWS YOU HOW TO THREAD IT.
Use a tensioner tool or wrech if you can to pull the tensioner so the belt loosens. thread in the new belt and release the tensioner to tighten the belt. Belt diagram is usually in the engine compartment