Bad Fuel Damper - Nissan Forums : Nissan Forum
 
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#1 Old 07-14-2004, 06:33 PM
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Bad Fuel Damper

anybody has any experience with the Fuel Damper going bad, how you knew it was the fuel damper , how a bad fuel damper sounds and if a bad fuel damper has any permanent damaging effects on the engine - 04 V6 Alty
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#2 Old 07-14-2004, 06:36 PM
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Never heard of this term before...
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#3 Old 07-14-2004, 06:44 PM
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Man you've got some strange questions. I'd try to help you, but I don't know what this part is you're talking about. There is no reference in the Service Manual to a "Fuel Damper". The only damper is in a hydraulic circuit for the ABS/TCS systems:


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#4 Old 07-14-2004, 06:55 PM
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well, dealership told me the have to replace that part - it causes that rattling noise after warmup
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#5 Old 07-15-2004, 12:11 PM
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this schematic looks to be about anti-lock brakes....I don't know why you're calling it a fuel damper...???

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#6 Old 07-15-2004, 02:28 PM
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It is a digram for ABS...thats what he waid in the post.

Fuel damper...I have no idea what it could be. What kind of rattling are you hearing after startup? Under what conditions do you hear it and does it go away inder other conditions?

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#7 Old 07-15-2004, 04:27 PM
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I'm going out into left field here but here goes anyways....

I read somewhere that our Altimas have a returnless fuel system, so I'm speculating that this so called fuel damper may be used to normalize the fuel pressure between injector pulses. If the fuel pressure is too high (spiking) the rattle that he hears could be from the injectors injecting the fuel at too high of a pressure?

OK.... I'm coming in from left field now.
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#8 Old 07-15-2004, 04:36 PM
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Quote:
Originally posted by franzd
well, dealership told me the have to replace that part - it causes that rattling noise after warmup
LMAO. Get us the part number off the repair order, if there is one. Maybe there is such a thing.
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#9 Old 09-16-2014, 01:58 PM
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Currently I have a problem with one of the dampers leaking and it's dripping gas on the intake manifold. This apparently isn't a common issue as I can't find a whole lot of information on it.

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#10 Old 09-23-2014, 03:08 PM
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2004 is a split year for that engine... the damper basically soothes out the fuel flow to the injectors. Your fuel pump pulses as it pumps the fuel to the rail. This smooth it out so there is a constant flow of fuel. As far as damage, long cranking times on start up, excessive wear on the fuel pump, and possible damage to the injectors ( long shot)

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