What does a dying fuel pump sound like?
01-23-2009, 02:57 PM
#1
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What does a dying fuel pump sound like?
Since I bought my UrS, what I believe to be the fuel pump has been making a humming noise which sounds like a cell phone vibrating in my trunk...
I first noticed it when I brought the car home, there was an odd buzzing that continued long after the ignition was off...I was standing there in my parent's driveway, admiring the new car with them, when my mom noticed the noise. Faint, but loud enough to hear outside the car. It even happens after the car is closed up and locked, but not always. Recently I've started noticing it while driving. Not always consistent, it may buzz for a few seconds then stop.
Does this sound like a dying pump? Any other possibilities besides my fuel pump making this noise? I'm getting an 044 relatively soon, but maybe sooner than expected...
TIA.
I first noticed it when I brought the car home, there was an odd buzzing that continued long after the ignition was off...I was standing there in my parent's driveway, admiring the new car with them, when my mom noticed the noise. Faint, but loud enough to hear outside the car. It even happens after the car is closed up and locked, but not always. Recently I've started noticing it while driving. Not always consistent, it may buzz for a few seconds then stop.
Does this sound like a dying pump? Any other possibilities besides my fuel pump making this noise? I'm getting an 044 relatively soon, but maybe sooner than expected...
TIA.
01-23-2009, 03:24 PM
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Sounds like a vacuum pump for the 'power' locks maybe?
If you spring a leak in on the of the lock system hoses the pumps can run for a while since they use a pressure based shutoff.
01-23-2009, 04:00 PM
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I just replaced the pump in my girlfriends 200 and it was buzzing....
It hummed and buzzed since we bought the car. You could hear it while the car was running. I know people have said the old audi's can have loud pumps but she had hesitation while on boost and I narrowed it down to the pump
Had new fuel filter, plugs, cap, rotor, air filter...
Replaced with oem bosch and the new pump is quiet as can be. Got rid of almost all of the hesitation/powerloss. Still a little bit when full throttle but I suspect a vacume leak and/or boost leak.
Old pump had metal filings in the filter and copper hairs sticking out the bottom...signs of a dying pump
Anyways not a horrible job just sucked with half a tank of gas and single digit temps.
Do your self a favor and run her almost empty before diving in.
Had new fuel filter, plugs, cap, rotor, air filter...
Replaced with oem bosch and the new pump is quiet as can be. Got rid of almost all of the hesitation/powerloss. Still a little bit when full throttle but I suspect a vacume leak and/or boost leak.
Old pump had metal filings in the filter and copper hairs sticking out the bottom...signs of a dying pump
Anyways not a horrible job just sucked with half a tank of gas and single digit temps.
Do your self a favor and run her almost empty before diving in.
01-23-2009, 06:35 PM
#7
mine died at 204k on the highway @ 6am in the coldest day of January....tow truck came @9:30am
how many miles on your pump?
if you suspect it, replace it.
Getting stuck in the middle of nowhere in the freezing cold was not worth the money i saved by not replacing it on time.....i actually ended up spending way more after all said and done.
if you have over 150k miles i'd replace it "rapido"
if you suspect it, replace it.
Getting stuck in the middle of nowhere in the freezing cold was not worth the money i saved by not replacing it on time.....i actually ended up spending way more after all said and done.
if you have over 150k miles i'd replace it "rapido"
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01-23-2009, 06:59 PM
#8
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170k...
I plan on getting an 044 anyways, but now I think it's Nate's idea of the central locking pump. I hear it after unlocking, and after locking.
Gonna check it out, and the pump will be getting replaced soon either way.
Hopefully the coldest days are over, and I have AAA just in case ;]
Gonna check it out, and the pump will be getting replaced soon either way.
Hopefully the coldest days are over, and I have AAA just in case ;]
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