Changed spark plugs; now a hiss - Nissan Xterra Forum
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#1 Old 11-24-2012, 06:54 PM
Join Date: Nov 2012
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2000 Xterra
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Changed spark plugs; now a hiss


I have a 2wd 2000 Xterra XE.

A friend helped me today by replacing spark plugs. Everything went well until the troublesome 6th plug which I had read about. An hour later, they were all installed so I drove it down the street to test. The only thing out of the ordinary I noticed was a new sound.. a hiss. In drive, there is a sound about every second, hiss. It's not a consistent hiss, but a definitive pause between each one.

Could the plug being loose or damaged which would create this sound?

Unfortunately it became night and we had to cease work until the morning. Anyone have ideas what could cause the new hissing sound?

Last edited by nilbog; 11-26-2012 at 02:21 PM.
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#2 Old 11-26-2012, 02:20 PM
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This was resolved. Air intake boot clamp was loose at the throttle body causing intake air leak.
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