Noise from the back on startup. Fuel pump? Is it normal? (Tried searching the archives)

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03-20-2001, 08:50 PM

CJS4

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Noise from the back on startup. Fuel pump? Is it normal? (Tried searching the archives)

More or less everytime I start my '01 S4, there is a noise that comes from the back of the car. I'm not sure, but I think it is coming from the driver's side. It last just a few seconds. It's noticable, but not really that loud. I'd best describe it as a buzzing.

My general car knowledge leads me to believe it is just the fuel pump building up pressure. I tried searching the S4 and A4 archives to see if others have had this and if it is normal, but the results I got were not that conclusive.

Any help?

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03-20-2001, 10:05 PM

James R.

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Normal...it's a gurgle lots of times...it's due to the shape of the tank...kinda like a horseshoe

it's that way to clear the rear diff...as a result the car has a pump which balances the fuel level between the two halves at startup...it's quite loud at times.

Regards,

James R.

2001 A4 1.8TQMSXP (Koni Coil-Overs (next week), Neuspeed 19mm Rear Anti-Sway, StopTech A4 Brake System, SS Brake Lines, Pagid Performance Friction (soon), Oettinger Pedal Set + Dead, Oettinger RE's 17x8, Yoko AVS Sports 225/45/R17, European Xenon Housings, Bailey BPV & RS4 Grill)