Chattering/clattering and lack of power

Tiny
JERIMIAH_WOLF
  • 1999 SATURN SW2
  • 170,000 MILES

My car lacks power on acceleration, at highway speeds and going uphill. It also makes a clattering/chattering sound when under load, but it goes away at speed (running even over flat ground) or if you meter the gas pedal enough and accelerate /very/ carefully and slowly. Fluids are clean and changed regularly, and the car idles very well. What could be causing something like this?

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Saturday, July 28th, 2012 AT 3:10 AM

1 Reply

Tiny
SATURNTECH9
  • EXPERT
  • 30,746 POSTS

Could have a clogged cat when the car has sat over night and cooled reach under the car and smack the cat with your hand. See if the cat is rattling.

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Saturday, July 28th, 2012 AT 3:16 AM

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