funny noise getting louder!!

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LLcoolK
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Tue Apr 24, 2007 12:23 pm

got a hissing noise comin from the rear and its got louder :( it starts as soon as you start it up. any ideas? cheers
Ziggy
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Tue Apr 24, 2007 12:28 pm

Fuel pump on the way out...? Does it sound louder if you take the rear seat base up?
E30 in need of wiring loom smoke since April '11...
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Brianmoooore
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Tue Apr 24, 2007 3:28 pm

Never heard a fuel pump hiss! Probably an exhaust leak if it starts with the engine.
john325tewerin
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Tue Apr 24, 2007 3:33 pm

Are you hearing it when you're inside and outside of the car?
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LLcoolK
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Tue Apr 24, 2007 5:03 pm

inside the car, its really getting on my nerves now!!
Ziggy
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Tue Apr 24, 2007 5:06 pm

Brianmoooore wrote:Never heard a fuel pump hiss! Probably an exhaust leak if it starts with the engine.
Well no, but it's kindof a hissy whiney noise, no? I'm rubbish at describing noises anyway!
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Brianmoooore
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Tue Apr 24, 2007 6:58 pm

Hissy whiny noise sounds like the diff, but that won't start until you're moving.
Ziggy
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Tue Apr 24, 2007 7:07 pm

Brianmoooore wrote:Hissy whiny noise sounds like the diff, but that won't start until you're moving.
True... I've had both, so my lack of skill at describing a noise is probably compounded by not actually remembering what a noisy fuel pump sounds like! :mad:

I'm fairly sure I know what the answer's gonna be, but do any of the snake-oil type things actually work on noisy (input shaft bearing I expect?) diffs? & can you use em with LSDs? :thumb:
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Speedtouch
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Tue Apr 24, 2007 7:12 pm

Speaking of snakes, maybe you have a dehydrated Boa-Constrictor trapped under the back seat...
///M aurice
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john325tewerin
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Tue Apr 24, 2007 8:08 pm

Sounds like you need to tune your radio :wink:
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