Installation

2001 OLDSMOBILE ALERO
146,000 MILES • 4 CYL • FWD • AUTOMATIC
Avatar
ALECM4227
  • MEMBER
  • 1 POST
How to replace 2001 Oldsmobile Alero Serpentine Belt Tensioner?


A screeching noise now occurs upon ignition, after I replace the Serpentine belt.
Jun 21, 2011 at 2:19 AM
Advertisement
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Avatar
CARADIODOC
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 34,308 POSTS
Tug on the belt to rotate the spring-loaded tensioner pulley, then watch if it sticks there or springs back smoothly. If it sticks, it won't put enough tension on the belt.

If the squealing was there before you replaced the belt, check for pulley misalignment, especially that tensioner pulley. If the belt is off-center by even 1/8" it will cause a squeal because the belt is sliding across the pulley as it goes around it.
Jun 21, 2011 at 3:17 AM