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| Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars |
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06-21-2002, 10:09 AM
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#1 |
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Leaky Injector
 
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I was driving it the other day and after i stop i started to hear this knocking noise coming from my engine. The noise only happens when its at about 2000 rpm when in neutral and when i'm driving it happens when i hit the gas and letting go of the gas
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90' 240sx fastback Mods: Sr20DET: (BLITZ: FM/IC, BOV, DOWNPIPE, INTAKE) (5zigen Fireball 3" Exhaust) (Bee R testpipe) (Walbro Fuel Pump) |
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06-21-2002, 07:30 PM
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#2 |
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Zilvia Member
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make sure that it is not the a/c compressor. I thought that I had the same problem but whenever the a.c was off, there was no sound.
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"stop lights timed to 55 mph are also timed to 110 mph!" http://www.geocities.com/broadwayblues34/240sx.html 92 240SX Coupe! MB clear side markers Clear bumper lights 3 inch universal muffler w/ removable tip. Strut tower bar- Front OBX SS version 2 |
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06-22-2002, 12:34 AM
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#3 |
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Leaky Injector
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well i don't have ac
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90' 240sx fastback Mods: Sr20DET: (BLITZ: FM/IC, BOV, DOWNPIPE, INTAKE) (5zigen Fireball 3" Exhaust) (Bee R testpipe) (Walbro Fuel Pump) |
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06-22-2002, 02:37 AM
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#4 |
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Will never get banned...
 
Join Date: Sep 2001
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if its more like a popcorn popping noise could be a spun rocker arm stopper
or the inevitable spun rod bearing. to see if its a rod bearing pull one plug at a time if the noise decreases then you have picked the right cylinder. for a spun rocker arm just pull your valve cover and see if you see one out of place.
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-=-99 Sentra SE 5 speed-=- -=-95 240 SE 5 speed-=- |
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06-22-2002, 03:05 AM
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#5 |
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Post Whore!
 
Join Date: Oct 2001
Location: in a cardboard box
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Maybe its a JDM mouse trapped in your engine. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt='
 '> <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt=''> <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt=' '> <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/crazy.gif" border="0" valign="absmiddle" alt=':crazy:'> <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/hehe.gif" border="0" valign="absmiddle" alt=':hehe:'> |
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06-22-2002, 03:05 PM
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#6 |
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Zilvia Junkie
 Join Date: Mar 2002
Location: Michigan
Age: 41
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id say that its a spun bearing...which kinda sucks because you will either have to get your crank machined(never did this, heard they arent as strong anymore)or buy a new crank, bearing set, and one new rod...that is if you dont want to build the whole inside once you have it all apart...better hope its just your rocker arm like others said it could also be...
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I like my car, you may not...You like your car, I may not...To each there own, right?  waiting for the sunken look to be cool..lol |
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