Question about 2003 Buick LeSabre

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Fuel pump makes loud noise after replacing it. fuel pressure at 50psi. any ideas?

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  • 76,846 Answers

You should hear a humming sound but that is about it.

Posted on Nov 07, 2012


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Posted on Jan 02, 2017

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SOURCE: replace fuel pump in 2000 buick leSabre3.8 v6

You should be able to replace the fuel pump through the trunk. Beneath the carpet in the trunk should be an access panel. Once you remove that panel, all the electrical connections and fuel lines can be disconnected. Remember to disconnect the negative battery cable prior to service, and to take necessary precautions in regards to fuel spillage that may occur. I hope this helps.

Posted on Dec 02, 2008

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SOURCE: Fuel pump in 2003 buick Lesabre

if there is an access plate you can remove then yes. but generally you have to drop the tank to get to it


Posted on Feb 06, 2009

  • 365 Answers

SOURCE: 2000 buick lesabre no fuel system pressure. new

Your PATS security system is faulty...check the BCM up above the glovebox...Seems I've told you this before?

Posted on Jun 27, 2009

  • 87 Answers

SOURCE: where is the fuel tank pressure sensor located


Posted on Aug 06, 2009

  • 7353 Answers

SOURCE: changed out fuel pump on 1998 Lesabre. Need to

There is no cut off switch. Check all fuses and the fuel pump relay.

Posted on Mar 13, 2010

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1 Answer

My 320d bmw,2000 model suddenly cuts off whilst dtiving,what could be the problem

Sounds like you might have a bad fuel pump. You need to hook a fuel pressure gage up the the fuel rail located near the injectors to see if you are getting proper pressure. You should be getting somewhere close to 50psi. If you are not getting 50psi, I would recommend changing your fuel pump. It is common for fuel pumps to fail on your model of car

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You need to attach a fuel pressure diagnostic tool to the fuel rail to see if you are getting 50psi. If you are not getting 50psi it is highly likely you need a new fuel pump.

You can rent those tools from AutoZone

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What happens when a fuel pump starts to go out?

You shouldn't have to pump the gas for a fuel injected vehicle to start. Where is the very loud noise coming from? If it's from the gas tank, then it very well could be the fuel pump beginning to fail. Sometimes you get no warning. You just get stranded. A mechanic would likely check your fuel pressure with a gauge.

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I'm trying to find the correct fuel pump psi for a

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1996 blazer fuel pump making loud squiling noise

If the fuel pump is actually making any noise that
is not normal, you replace it, before it lets you down
& stranded somewhere

I have no idea why relays are ever meantioned on this

You would think they fail on all cars on a daily basis

If you have any basic electricity knowledge, then you
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Nov 20, 2012 | Cars & Trucks

1 Answer

Got a 1999 gmc jimmy. Wether it is cold outside or warm my truck has difficulty starting when the truck is cold. Got new plugs wires and distributor. Fuel pump is working fine. Once it is running there is...

Common problem with these is a fuel drainback. Use a fuel pump pressure tester, start the engine, If it's multi-port fuel injection the psi should be 50psi+. If 50psi, turn off engine and notice psi drop. If fuel pressure drops off to 10 or 5 psi, try to start engine and watch for a jump in fuel pump pressure. If pressure jumps to 50psi and the engine won't start, then I would suspect a good working fuel pump, if not a jump to 50 psi, I would say bad fuel pump. Good luck, Gary

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my idea, the pumps are working agianst each other. what is the line pressure supposed to be? I think the rear pump is burning the new pumps up. is the rear pump running when the front pump is running? Let me know

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