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The spark plugs first in cylinder 2 then in 1 appeared smashed

Tiny
TPBOY
  • MEMBER
  • 2004 NISSAN ALTIMA
  • 116,000 MILES
And/or overheated, this happens after engine reaches operating temp. The car started running rough and stalling the other day. When I checked the plug in cylinder one had a "smashed" electrode. I corrected this problem then the next day it happened again, this time it was the number 1 plug. Ive replaced plugs hoping to correct this problem with the same results in the no. 1 cylinder.
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Sunday, January 1st, 2012 AT 10:12 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do you have the correct OEM part-on the plugs/heat range-Its not an interference engine-
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Sunday, January 1st, 2012 AT 10:24 PM
Tiny
TPBOY
  • MEMBER
  • 2 POSTS
Yes, the plugs are correct for the vehicle.
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Sunday, January 1st, 2012 AT 10:28 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
A valve seat could be falling apart causing the damage to the plug. Possible the belt jumped, loose wrist pin and worn connecting rod bearings for no.1
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Sunday, January 1st, 2012 AT 10:43 PM

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