Why is the 2 end spark plugs good and the middle 2 are fine

Tiny
FREELOADS77
  • MEMBER
  • OLDSMOBILE
:evil: :twisted: I got a 94 acheiva (oldsmoblie) and the 2 end plugs are fine but the mittle 2 are fouled out its the ouad 4 :. :Evil: :evil:
Saturday, July 22nd, 2006 AT 4:40 PM

1 Reply

Tiny
MIKEYBDMAN
  • MECHANIC
  • 623 POSTS
I would preform a compression check on all of your cylinders. It sounds like you may have a bad head gasket or cracked head between the two middle cylinders. Of course this is worst case senerio.
It could be two bad fuel injectors, or maybe an outside chance of leaking valve seals.
Do the compression check and go from there. If the two middle cylinders are low, pull the head off and see what is going on. May be time for a top end job anyway with it being a 94 model.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, July 22nd, 2006 AT 5:50 PM

Please login or register to post a reply.

Related Spark Plug Content

VIEW MORE

Sponsored links