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Idler arm

Tiny
STEVE CROISSANT
  • MEMBER
  • 1999 BUICK PARK AVENUE
  • 3.8L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 168,000 MILES
The idler arm (tension pulley) bounces up and down when the engine is running. I replaced the tension assembly but it is still bouncing. After taking off the serpentine belt it seems like the power steering pulley is not spinning as free as it should. Do I need to replace the whole power steering pump and pulley or just the pulley? The power steering works fine. Thank you for any advice.
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Thursday, June 2nd, 2016 AT 8:28 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
It is normal for tensioner to bounce up and down because it keeps belt tight at different rpm's. If the power steering works fine I would leave it alone.
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Thursday, June 2nd, 2016 AT 9:28 AM

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