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Cylinder number two misfire

Tiny
MANCITSHANA BM
  • MEMBER
  • 2014 CHEVROLET CRUZE
  • 1.6L
  • 4 CYL
  • 2WD
  • MANUAL
  • 70,000 MILES
Hi there. My car is jerking when idling. Checked using OBD it indicated a misfire in cylinder number 2. Checked the plugs and found oil in cylinder number 2 plug well. At the dealership they indicated that the compression is low on cylinder number 2. My question is, can low compression cause oil to accumulate in the plug well? Thanks for your support.
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Thursday, January 30th, 2020 AT 1:00 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

Low compression is either from a valve issue or piston rings.

https://www.2carpros.com/articles/the-reasons-for-low-compression

As far as the oil in the plug well, that is from the valve cover gasket seal.

The engine will have to be disassembled to gain access to valves and pistons.

Roy

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Thursday, January 30th, 2020 AT 2:05 PM
Tiny
MANCITSHANA BM
  • MEMBER
  • 2 POSTS
Okay, thanks. Will look into valves and pistons. Will also change the valve cover gasket as well.
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Thursday, January 30th, 2020 AT 8:59 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Always glad to help.

Roy
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Friday, January 31st, 2020 AT 1:22 AM

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