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Guest Message by DevFuse
 

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Fuel Pump noise?


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7 replies to this topic

#1 Ozmodiar-X

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Posted 26 September 2005 - 12:30 AM

When my car is in the 'ON' postion, but not running, i can very clearly hear the fuel pump. Is this bad? it was like that when i bought the car.

#2 nkx

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Posted 26 September 2005 - 12:35 AM

i can hear mine clearly too. i would be more worried if i didnt hear it!

#3 Ozmodiar-X

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Posted 26 September 2005 - 12:38 AM

on all of my other cars i cant hear it, and they run fine, not to say that the GL doesnt run fine, but i was just curious.

#4 nkx

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Posted 26 September 2005 - 12:51 AM

well if you listen very carefully you can sometimes hear it in other cars. i guess it depends on the placement of the pump and how much sound insulation there is. im pretty sure when it comes on just before you crank the engine over, its just priming the system.

#5 WoodsWagon

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Posted 26 September 2005 - 06:39 PM

If its a small whine, its ok. If it turns to a menacing growl, get another one.

#6 jeffast

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Posted 26 September 2005 - 09:33 PM

i hear the fuel pump in my chevy truck and thank god

i never want to drop the tank on that bastard again

#7 Interceptor2k

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Posted 27 September 2005 - 11:17 AM

When my car is in the 'ON' postion, but not running, i can very clearly hear the fuel pump. Is this bad? it was like that when i bought the car.


I just got done working on the fuel pump system for my '92 Loyale. The pump should only run about 2 sec with the key "on" - just enough to prime the fuel system. The ECU then tells the pump to quit until the car is started. The reason that I mention this is that people have been known to jumper / bypass the fule pump relay, which causes the pump to stay on all of the time when in the "on" position. Most cars do this for safety - in case there is an accident, the fuel pump won't keep on... Otherwise, it will not hurt anything. BTW - yes, you should be able to hear it....

#8 samo

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Posted 27 September 2005 - 01:35 PM

Normal. Mine's loud too, but there's no carpet in my rig, so I can hear it clear as day back there. As explained above, it's pressurizing the lines so the car will have fuel to start.




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