loud rattling noise from engine compartment

1994 SATURN SC2
149,000 MILES • 4 CYL • FWD • AUTOMATIC
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MICHELLEH65
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  • 1 POST
I heard this loud rattling from engine compartment. not sure where it is coming from. When idling or driving it is a constant noise.
May 20, 2017 at 2:31 PM
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SATURNTECH9
  • ✓ASE Certified Mechanic
  • 30,869 POSTS
  • ASE Certified Mechanic
Are there any drive pulleys on the engine wobbling? It could be a water pump. If it is really loud it is most likely the water pump. You can also pop the belt loose and see if the water pump pulley is loose. It is the pulley right bellow the A/C compressor. You can also spin the A/C compressor pulley while the belt is off. Let me know what you find.
May 21, 2017 at 9:46 AM
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SATURNTECH9
  • ✓ASE Certified Mechanic
  • 30,869 POSTS
  • ASE Certified Mechanic
Hopefully it is not the timing chain.
May 21, 2017 at 9:46 AM
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