The zd30 has a hydraulic tensioner using an idler pulley to automatically tension the serpentine belt.
you don't tighten a serpentine belt the tension is supplied by a tension pulley if belt is loose, it is time to replace belt or tension pully if tension pully needs repplacing belt will be worn anyway
Tension is accomplished with a belt tensioner, it is probably defective and needs replaced.
if belt needs tightening, u need a new belt serpentine belts use a tension pulley that automatically keeps belt tight until belt is worn out or stretched.
If it is a drive belt and not a serpentine belt is has no tensioner. You manually adjust the tension by normally adjusting tension by moving the alternator. Loosen to bolts holding the alternator in place and then adjust the tension. Tighten the bolts when the tension is right. If it is serpentine belt if you follow the belt around the the engine you will see the tensioner.
you probably need to replace a serpentine belt or a tensioner. check your belt and pulleys for abnormal wear and proper tension
how do i find the auto tension release for the serpentine belt on a 2004solara
Closest to front of engine (where serpentine belt is).
The tension on a serpentine belt is automatically set by the Idler Tension Pulley. If you find it is not correctly setting the tension, the the spring may be broken.
If it has a serpentine belt it should have an automatic belt tensioner If it doesn't have a serpentine belt then alternator should be the adjustment/pivot point
Most serpentine belt systems have a self adjusting tensioner.
Remove belt and tensioner should just be bolted to engine
A serpentine belt on an engine is held in place by a pulley that maintains the proper tension on the belt. This pulley can be pulled up to release the tension on the belt. Do not pull the pulley out, but gently up or you'll risk damaging it.