Join Date: Mar 2007
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I started to think the fuel injector damper??? Again, looking for any possibilities. Thanks. will recheck.
According to the Nissan Service Manual you can easily determine if the source of the noise is one of the fuel dampeners by grasping the fuel rail and feeling if the vibration coincides with the sound you are hearing. You will need to remove the cosmetic engine cover to access the dampeners.
How is this replacement done (fuel dampers). Have a few questions:
- what do fuel dampers do?
- will I need to replace both or how do I tell which one to replace if only one is bad?
- Which fuel rail (dumb question - what is a fuel rail) do I grab to feel the vibration - the one connected to the dampers I assume? Is it correct to assume that the damper which is still good wont have the vibration?
- if the noise is a result of the fuel damper going bad, what generates the sound? In other words, how is that throaty sound created when the damper goes bad? I do not feel exhaust air escaping in the area. Wanted to understand this more.
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