iLLlegal Posted June 20, 2006 Share Posted June 20, 2006 k so today i was helping boost my grandmas car. and I had my engine running and I was walking around right. well behind my rear wheel i hear this kind of hissing sound. is this normal. ive never listened back there. i sounds like its coming somewere by my gas tank. any suggestions. if you need more info ill try and answer. thanks Link to comment Share on other sites More sharing options...
John Boy Posted June 21, 2006 Share Posted June 21, 2006 LOL :o I've got the same exact hissing noise. I guess it's normal. Link to comment Share on other sites More sharing options...
iLLlegal Posted June 21, 2006 Author Share Posted June 21, 2006 mabey the fuel pump or something.? Link to comment Share on other sites More sharing options...
v6engine Posted June 21, 2006 Share Posted June 21, 2006 It's your fuel pump. It's its way of letting you know that a replacement is likely due. Link to comment Share on other sites More sharing options...
John Boy Posted June 21, 2006 Share Posted June 21, 2006 It's your fuel pump. It's its way of letting you know that a replacement is likely due. Let me guess, the fuel pump is in the tank, lovely. Link to comment Share on other sites More sharing options...
FLApathy Posted June 21, 2006 Share Posted June 21, 2006 on some wd21s theres a door on the floor above the pump, i forgot what years got them Link to comment Share on other sites More sharing options...
iLLlegal Posted June 21, 2006 Author Share Posted June 21, 2006 *crosses fingers* please say 92 please say 92. heh. well if it is the fuel pump ill change it when it is offically broke. Link to comment Share on other sites More sharing options...
John Boy Posted June 21, 2006 Share Posted June 21, 2006 *crosses fingers* please say 92 please say 92. heh. well if it is the fuel pump ill change it when it is offically broke. Screw that let it be on the 95. Link to comment Share on other sites More sharing options...
Jmax5000 Posted June 21, 2006 Share Posted June 21, 2006 My 91 has it, So illegal you should be laughing.... Link to comment Share on other sites More sharing options...
iLLlegal Posted June 21, 2006 Author Share Posted June 21, 2006 laughing. laughing that i have to buy a new fuel pump. then yes im laughing lol....yeah... but accually. thats good to know. mabey i like that sound..mabey ill just keep it Link to comment Share on other sites More sharing options...
89_trailboss Posted June 21, 2006 Share Posted June 21, 2006 all paths have that door AFAIK Link to comment Share on other sites More sharing options...
89_trailboss Posted June 21, 2006 Share Posted June 21, 2006 and illg, you get an amp for that LMT yet? I wanna see(or feel?) that thing in action!!!! :o on second though, it may be kinda scary seeing tht thing with 2000 watts Link to comment Share on other sites More sharing options...
iLLlegal Posted June 21, 2006 Author Share Posted June 21, 2006 haha nope. its been like a YR and i still havent found an amp. PLUS i rear ended some lady so im down 1200. so its gunna be some time until i come up with some fun money to power that baby. end of august is what im shooting for... Link to comment Share on other sites More sharing options...
RedPath88 Posted June 21, 2006 Share Posted June 21, 2006 Long ago when I was having major problems... umm well the first time I had major problems I troubleshot the Fuel Pump. A call to a local dealers service center got me into contact with an old-time Nissan tech. He told me that "most" of the Pathfinders got the access door but not all of them. He knew of no real pattern to what did and what did not get the door. iirc I think I found a 4dr once that did not have the access door. Only way to tell for sure is to pull the carpet up in the cargo area As for the hiss.. as stated it is likely the fuel pump. Does that mean it will need replacement soon? I doubt it, the original did it and so did the replacement that I got from a wrecking yard, neither one showed any signs of failing. My original had 250,000+ miles on it and the replacement was around 150,000. (For the record, my replacement of the fuel pump did as I expected... nothing, so now I have a spare, my trucks original) Link to comment Share on other sites More sharing options...
Slick Posted June 21, 2006 Share Posted June 21, 2006 i think he just need to remove the snake that ahs obviously found its home under there Link to comment Share on other sites More sharing options...
FLApathy Posted June 21, 2006 Share Posted June 21, 2006 and illg, you get an amp for that LMT yet? I wanna see(or feel?) that thing in action!!!! :o on second though, it may be kinda scary seeing tht thing with 2000 watts my bro has 3 12"s in his CRX, only 2 are hooked up and his amp pushes 3000 watts to easch speaker, i forgot what thats called but he has the amp as low as it can go and also the bass as low as it can go at the head unit, its insanly loud and the best part is its clear sound, his tag and what not doesnt rattle, he spent alot of time making it that way and it payed off but i cant put into words how loud it is and how clear it sounds, he has a bass test cd thats like 5 hours long, theres a part that hits so low that you cant hear it but you can see the windows and speakers jumping, its insane Link to comment Share on other sites More sharing options...
94extreme Posted June 21, 2006 Share Posted June 21, 2006 the hiss is from the exhaust man... it may be cracked also but my 89 did that and there was nothing wrong with it.. look closer, i bet it's nothing to worry about. pump doesn't hiss it whines, kind of. Link to comment Share on other sites More sharing options...
k9sar Posted June 21, 2006 Share Posted June 21, 2006 my fuel pump makes a hissing sound. I initially thought I had a tire going down but it's definately the fuel pump Link to comment Share on other sites More sharing options...
94extreme Posted June 21, 2006 Share Posted June 21, 2006 check again because the pump maybe buzzes but hissing is from the exhaust man. Link to comment Share on other sites More sharing options...
v6engine Posted June 21, 2006 Share Posted June 21, 2006 (For the record, my replacement of the fuel pump did as I expected... nothing, so now I have a spare, my trucks original) I got different results when I replaced my fuel pump (also with one found at a junk yard). - Hissing gone - Fuel gauge was more accurate. Mileage improved I had the fuel filter replaced at the same time as well. Link to comment Share on other sites More sharing options...
k9sar Posted June 21, 2006 Share Posted June 21, 2006 hissing from fuel pump. engine not running but key turned to ON. No exhaust gasses moving and same sound. Link to comment Share on other sites More sharing options...
94extreme Posted June 21, 2006 Share Posted June 21, 2006 (edited) k so today i was helping boost my grandmas car. and I had my engine running and I was walking around right. well behind my rear wheel i hear this kind of hissing sound. is this normal. ive never listened back there. i sounds like its coming somewere by my gas tank. any suggestions. if you need more info ill try and answer. thanks although the exhaust is on the left so maybe.. mine (fuel pump) does buzz even after i shut it off now.. never noticed it before but i noticed the same thing on my friends Xterra the other day.. hmmm yours must be wierd! mine buzzes. Edited June 21, 2006 by mzxtreme Link to comment Share on other sites More sharing options...
iLLlegal Posted June 21, 2006 Author Share Posted June 21, 2006 lol damn it. well i was hearing this noise on the RIGHT SIDE of my vehical. right in the wheel well. mabey hissing is better than buzzing. +10HP woo. Link to comment Share on other sites More sharing options...
94extreme Posted June 21, 2006 Share Posted June 21, 2006 lol damn it. well i was hearing this noise on the RIGHT SIDE of my vehical. right in the wheel well. mabey hissing is better than buzzing. +10HP woo. that's most likely the pump then.. i wouldn't worry about it though. Link to comment Share on other sites More sharing options...
Precise1 Posted June 22, 2006 Share Posted June 22, 2006 (edited) I know the sound of which you speak, I wouldn't call it a hiss, but close... Regardless, yes, it's the fuel pump in some manner and mine has done it for about 2 years and 13k miles exactly the same so I doubt it is a sign that it is going out. Perhaps some may vibrate more than others ? Replacing it means you tighten it back down which is what it needed ? Slightly differnt frequence or pressure ? It is inside of a resonance well after all. I wouldn't worry about it unless you suddenly STOP hearing the noise... B Oh, could it be the return flow hose ?? The pressure regulator needs a bypass so the pump doesn't overwork and heat up... Well, at least thats the way my VW is set up. Edited June 22, 2006 by Precise1 Link to comment Share on other sites More sharing options...
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