Shakes in Serpentine Belt system?

Tiny
KLEVIC22
  • MEMBER
  • 2007 VOLKSWAGEN GOLF
  • 1.9L
  • 4 CYL
  • TURBO
  • 2WD
  • MANUAL
  • 200,000 MILES
What part could be wrong for this? These both shake.
Thursday, June 26th, 2025 AT 4:44 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Yep, this happens when the serpentine belt tensioner goes bad, here is how to replace it, also you should install a new belt as well. Remove these three bolts after the belt is removed. While the belt is off, spin each accessory to make sure they spin freely. Check out the images (below). Please let us know what happens.
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Thursday, June 26th, 2025 AT 11:56 AM
Tiny
KLEVIC22
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Understood. Could the alternator freewheel pulley be bad also? I’m going to a mechanic tomorrow and don’t want to change all the parts. I’ve just done the phase kit a couple of days ago along with water pump.
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Thursday, June 26th, 2025 AT 2:32 PM
Tiny
KEN L
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I don't think the one-way clutch can do this, but you never know. I would do the tensioner first; it is a common failure.
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Thursday, June 26th, 2025 AT 4:52 PM

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