High pitch whistling sound at the rear of S13 hatchie - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

corry29 · 03-13-2011, 03:22 AM

I'm hearing this high pitch squealing/whistling sound when I turn the car on,

I only noticed it when I gutted out the back and put down the rear seats (keeping my eye on the trunk leak), I can hear it when I'm driving that its coming from the rear and under the trunk, I can also hear it from outside too (not sitting in the car).

My friend said its the fuel pump, but I just got it replaced, and its still making that sound.
I'm just wondering, is it normal for it to always make that sound?

I hope someone can help!

mitcheyismyname · 03-13-2011, 03:36 AM

yeah its the fuel pump operating normally. no need to worry. but i did get annoyed so i put my interior all back.

corry29 · 03-13-2011, 08:37 PM

Quote:

Originally Posted by mitcheyismyname

yeah its the fuel pump operating normally. no need to worry. but i did get annoyed so i put my interior all back.

But I'm also hearing this high pitch sound from outside too? Are you sure its normal?

corry29 · 03-18-2011, 10:55 AM

Quote:

Originally Posted by corry29

But I'm also hearing this high pitch sound from outside too? Are you sure its normal?

Any other insights?

Pro ViZIon · 03-18-2011, 11:42 AM

Is this when driving or just when its sitting there?

corry29 · 03-18-2011, 08:22 PM

Quote:

Originally Posted by Pro ViZIon

Is this when driving or just when its sitting there?

Its when its driving and when it sits there, basically when its on,

I know the sound is still there when I'm driving, because I can hear it when the back seats are down.

Sileighty_85 · 03-18-2011, 09:45 PM

What fuel pump is it?

If its a Walbro, then its def normal

Pro ViZIon · 03-19-2011, 12:03 AM

Yeah walbros are definately loud. I have one is my rx7.

If it was only when driving though I was going to say the differential.

rollout240 · 03-19-2011, 12:14 AM

Quote:

Originally Posted by Pro ViZIon

Yeah walbros are definately loud. I have one is my rx7.

If it was only when driving though I was going to say the differential.

i was going to say diff. too. but since you said you can hear it when its idling then maybe your fule pump. i have a walbro and to be honest havent heard it making this sound to be that loud as expressed. open your trunk and put your ear to the pump. maybe you can pin point where the sound is coming from.

good luck. let us know whats up.

Sileighty_85 · 03-19-2011, 09:14 AM

well walbro are audible from the out side but one thing that will make them scream is a dirty pick up filter

Pro ViZIon · 03-19-2011, 12:43 PM

+1 on dirty pick-up.

03-13-2011, 03:22 AM	#1
corry29 Zilvia Member Join Date: Apr 2010 Location: Millbrae, CA Posts: 295 Trader Rating: (6) Feedback Score: 6 reviews	High pitch whistling sound at the rear of S13 hatchie I'm hearing this high pitch squealing/whistling sound when I turn the car on, I only noticed it when I gutted out the back and put down the rear seats (keeping my eye on the trunk leak), I can hear it when I'm driving that its coming from the rear and under the trunk, I can also hear it from outside too (not sitting in the car). My friend said its the fuel pump, but I just got it replaced, and its still making that sound. I'm just wondering, is it normal for it to always make that sound? I hope someone can help!

03-18-2011, 11:42 AM	#5
Pro ViZIon Zilvia Junkie Join Date: Dec 2008 Location: Las Vegas, NV Age: 31 Posts: 415 Trader Rating: (0) Feedback Score: 0 reviews	Is this when driving or just when its sitting there? __________________ 1990 Nissan 240SX w/KA24DE - New project 1984 Mazda RX-7 GSL-SE 13B

03-18-2011, 09:45 PM	#7
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	What fuel pump is it? If its a Walbro, then its def normal __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online #/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

03-19-2011, 12:03 AM	#8
Pro ViZIon Zilvia Junkie Join Date: Dec 2008 Location: Las Vegas, NV Age: 31 Posts: 415 Trader Rating: (0) Feedback Score: 0 reviews	Yeah walbros are definately loud. I have one is my rx7. If it was only when driving though I was going to say the differential. __________________ 1990 Nissan 240SX w/KA24DE - New project 1984 Mazda RX-7 GSL-SE 13B

03-19-2011, 09:14 AM	#10
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	well walbro are audible from the out side but one thing that will make them scream is a dirty pick up filter __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online #/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

03-13-2011, 03:36 AM	#2
mitcheyismyname Zilvia Member Join Date: Apr 2009 Location: Hawaii Posts: 208 Trader Rating: (6) Feedback Score: 6 reviews	yeah its the fuel pump operating normally. no need to worry. but i did get annoyed so i put my interior all back.

03-19-2011, 12:43 PM	#11
Pro ViZIon Zilvia Junkie Join Date: Dec 2008 Location: Las Vegas, NV Age: 31 Posts: 415 Trader Rating: (0) Feedback Score: 0 reviews	+1 on dirty pick-up. __________________ 1990 Nissan 240SX w/KA24DE - New project 1984 Mazda RX-7 GSL-SE 13B

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