SPONSORED LINKS

No compression in one cylinder

Tiny
KENNETHDEMARCO
  • MEMBER
  • 2001 SUBARU OUTBACK
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 207,000 MILES
I did a compression test and one cylinder has no compression. In that spark plug that I pulled from that cylinder the ground electrode was touching the central electrode. The other three plugs were gaped properly.
Air filter is soaked with oil. Will start but blowing white smoke from/through air filter intake.
What can I do? What is the issue?
SPONSORED LINKS
Saturday, March 24th, 2018 AT 9:04 AM

1 Reply

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

You will need to have the cylinder head removed and inspect the valve train for any damage. It could be a burned valve, or a damaged piston or rings.

At this point, it is impossible to tell without removing the head.

Are you doing this yourself or is a shop performing this operation?

Roy
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, March 24th, 2018 AT 1:17 PM

Please login or register to post a reply.

Related Engine Compression Content

Engine Compression Test
VIDEO
Engine Compression Test
Instructional repair video
Compression Test
GUIDE
Compression Test
A car's engine needs cylinder compression to run correctly. This compression is caused by the engine pistons traveling upward to the top of the cylinder bore and then...
VIEW MORE

Sponsored links