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Rough idle, spark knock

Tiny
GOODFELLA937
  • MEMBER
  • GMC YUKON
Installed new intake gasket, along with a few other gaskets on 1995 5.7L yukon. Engine has very rough idle, pings under load. Possibly EGR?
Saturday, October 20th, 2007 AT 6:03 PM

3 Replies

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Make sure parts where you installed gasket are tightend securley.

Did this happen afte rhte gaskets are before?
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Saturday, October 20th, 2007 AT 8:57 PM
Tiny
GOODFELLA937
  • MEMBER
  • 2 POSTS
Tightened everything to spec, just started this after I completed the job. Replaced spark plugs and vacuum lines.
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Sunday, October 21st, 2007 AT 10:36 AM
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Go back over everything. Did you apply gasket sealer to the gaskets?
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Sunday, October 21st, 2007 AT 7:31 PM

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