Loud engine knock could this be the EGR valve or the PCV valve causing the knock?\

Tiny
RIBBO
  • MEMBER
  • 1996 ISUZU TROOPER
  • 180,000 MILES
Knocking all the time on start up
Tuesday, April 24th, 2012 AT 5:20 AM

1 Reply

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
You mean it runs rough or just makes knocking noise? I bad miss can make a knocking sound or some part internally has failed. Hard to judge on net. Does it knock worse when driven?
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Tuesday, April 24th, 2012 AT 5:45 AM

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