Knocking noise in engine

Tiny
LA.VERO
  • MEMBER
  • 1999 SATURN SL2
  • 4 CYL
  • MANUAL
  • 216,307 MILES
Car has a knocking sound and gets louder when I step on gas. What could it be and what is the cost to repair it? Is it worth fixing? Please help.
It was low on oil when knocking started. But I added four quarts. Now it is not as loud but still knocks.
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Wednesday, May 2nd, 2018 AT 9:29 PM

6 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
If you had to add four quarts of oil to the engine then there was no oil in the engine. It sounds like you most likely spun a rod bearing. Your best bet for repair would be a used engine. Let me get you a guide to help you along.
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Friday, May 4th, 2018 AT 8:11 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
https://www.2carpros.com/articles/rattle-noise
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Friday, May 4th, 2018 AT 8:15 AM
Tiny
SATURNTECH9
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Let me know what you find. I would say a rod knock.
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Friday, May 4th, 2018 AT 8:15 AM
Tiny
LA.VERO
  • MEMBER
  • 40 POSTS
Thank you and around how much would engine swap cost?
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Friday, May 4th, 2018 AT 3:31 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,431 POSTS
Hello,

Can you check to see if you have a loose spark plug? That is what it sounds like to me.

https://www.2carpros.com/articles/how-to-change-spark-plugs

Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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Sunday, May 6th, 2018 AT 4:53 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
I did not see a video there before. Yes it does sound like you could have a loose spark plug.
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Sunday, May 6th, 2018 AT 6:53 PM

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