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What causes the fuel pump to not have electricty

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Blown fuse, faulty BCM, faulty ECU etc.

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Posted on Sep 01, 2010

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Posted on Jan 02, 2017

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I have to prime fuel pump before I start the engine. What can cause this. Brand new fuel pump. 1999 GM yukon


how do you prime an electric fuel pump thats buried inside a fuel tank ---are you getting fuel to the throttle body --is pump turning on --retest pump new doesnt mean free from defects if this is the first replacement pump for vehicle was the connection to pump upgraded /changed out [problem with connection corrosion and damage would incur causing pump failure or non operation of pump ]also check lines are not kinked and pump installed correctly

Oct 19, 2016 | Cars & Trucks

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Hi jeff Armer it is me again with the 2008 tahoe what cause the fuel pump module to go bad i change a fuel pump i buy it from pit boys that pump can cause the fuel pump module to go bad?


What Causes Fuel Pumps to Fail - AGCO Automotive ...

www.agcoauto.com/content/news/p2_articleid/195
The pump is the heart of the fuel pump module and does the work of moving ... Abad fuel pump could cause any or all of the symptoms below: ... This is unfortunate as fuel quality is a real problem and a clogged filter may mean a new fuel pump. ... Fuel with ethanol will go through phase separation if it remains too long in ...

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No power getting to fuel pump


Check the ground connection where it connects to the frame on the passenger rear of the car. Also check the fuel relay in the fuse panel under the rear seat.

Mar 24, 2014 | 2001 Oldsmobile Aurora

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Mechanical Fuel Pump leak


Guys, the OP said "mecanical fuel pump", not power steering or watter pump!..

The first time may have been normal fuel pump diaphragm wear... and the second fuel pump may not be the correct part for the engine... the pump lever is a different size for different applications.. if you got the wrong fuel pump the pump lever coud have been of the inappropriate size and may have caused excessive fuel pressure or to long diaphragm travel rupturing it. Make sure that you get the exact fuel pump for your car before you pay for it. Otherwise if the fuel pump you bought was the correct part, it may have been deffective.

Oct 01, 2012 | Chevrolet S 10 Cars & Trucks

2 Answers

Fuel pump just stopped,ECU-I.G fuse burnt changed fuse , still don't hear pump,if line was blocked would pump shutdown?


FUEL PUMP MORE LIKELY WORN OUT SHORT OUT.BESURE REPLACE FUEL PUMP WIRES IF FUEL PUMP HAS TO BE REPLACED.CODE SCAN FOR ECU FAULT. IF FUEL FILTER STOPPED UP FUEL PUMP WILL SHORT OUT.

Jun 08, 2011 | Toyota Xtracab Cars & Trucks

1 Answer

Fuel pump has been replaced 3 times and is not working again. What else in the fuel system can be causing the fuel pump failure.


Burned contacts in the fuel pump cutoff switch can cause this as well as a burnt connector to the cutoff switch, the relay for fuel pump can also cause this problem.

Dec 28, 2010 | 1999 Ford Contour

2 Answers

What is causing the fuel pump to fail on my 1987 Nissan Stanza? The mechanic is about to put on the third new pump.


The possible causes are a dirty fuel filter and since the fuel pump sits in the fuel tank and is cooled by the fuel, always keeping the fuel level at low or empty which causes the fuel pump to run hot deminishing its service life.

Jun 17, 2010 | 1987 Nissan Stanza

2 Answers

2008 Ford F450 fuel pump relay fuse keeps blowing.


the fuel pump and radio are not on the same circuit, most liokely the fuel pump is shorted, that is the most common cause, get under the truck and disconnect the fuel pump connector at the tank, if the fuse doesn't blow then u need a new pump.

Dec 05, 2009 | 2008 Ford F 450 Super Duty

1 Answer

2001 Chevy 2500HD 6.0L, Hard starting.


Check the fuel pressure, bad fuel pump or sock on the fuel pump and fuel filter check spark plugs and check distributor cap, a fuel pump is $273.00 or a bad injector $110.99 or BWD Fuel Vapor Pressure Sensor for $35.99 any of these parts could cause the problem, so without doing a fuel pressure test it is a guess, if the vapor switch is bad it could cause a long crank time if the fuel pump is bad it has a check valve in the fuel pump, if the check valve goes bad the pump can't maintain fuel pressure so on start up the fuel has to pump from the tank all the way up to the fuel rail, if the injectors is bad it could leak after engine shut down and cause you to lose fuel rail pressure. Also the fuel vapor sensor could be stuck open and could cause the problem, all need to be tested, you can rent the fuel pressure tester from AutoZone or advance auto or Shucks they return your money when you bring the tool back as long as you buy the parts to repair it from them. That would be the first thing I would check fuel pump pressure and if you replace the pump then change the fuel sock as well. That model was not meant to burn ethanol and can kill the fuel sock the fuel pump and filter.

Jul 04, 2009 | 2005 Chevrolet Silverado 1500HD

2 Answers

Fuel problem


you might want to check your cabin air filter or the charcoal canister underneath the hood. it's purpose is to remove any excess fumes from the gastank. if it's broken or clogged that would explain why you smell gas in the car

Jan 06, 2009 | 1999 Hyundai Accent

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