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Fuel pump test - Safari GMC Cars & Trucks

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You can test it for Pressure,Voltage,Current or Volume
& get a sofisticated as your skills allow

Posted on Jan 10, 2013

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Posted on Jan 02, 2017

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2002 Dodge Dakota v-6 won't start the battery so good the starter is good it turns over and cranks but nothing happens I tried starter fluid in the carb.


Here are the usual suspects:
stuck fuel valve/float valve in the carburetor.
clogged fuel filter. or fuel line.
defective fuel pump.
electric fuel pump may be just a blown fuse, or wiring problem. good hunting.

Feb 03, 2018 | Dodge Cars & Trucks

1 Answer

Hit a hole and the gas tank bottomed out and the fuel pump quit working but the plastic tank is not ruptured do I need another pump or just reset it. It is on a 1999 Chevrolet venture


Chevy doesn't have a reset switch . Test the fuel pump electrical circuit ! Here is a link to a video on youtube testing GM fuel pump circuit . Before condeming the fuel pump test.
GM Fuel Pump Relay Testing

May 29, 2017 | Cars & Trucks

1 Answer

Keep putting in fuel pumps on 2007 buick rendevous and they work for a day or so and they fail? Could it be something other than the fuel pump?


Electrical problem ! Unless your using cheap fuel pumps . Did you try a Delco GM fuel pump . Do a voltage drop test on fuel pump electrical circuir also amp draw . Testing Electric Fuel Pump Problems with Voltage Drop Test

Jan 23, 2017 | 2007 Buick Rendezvous

1 Answer

1994 Lincoln Town Car Fuel Pump Failure?


Test the electrical circuit ,voltage drop ! Do you know how do to automotive electrical testing using a DMM - digital multi-meter ? Looking at a wiring diagram so you know what wire's are what ?
Free wiring diagram's here http://www.bbbind.com/free_tsb.html
Enter vehicle info. year , make , model an engine size . Under system click on engine , then under subsystem click on fuel controls . Click the search button then click the blue link .


Testing Electric Fuel Pump Problems with Voltage Drop Test

How to Test for Fuel Pump Voltage Drop

Trouble Shooting Fuel Pumps Voltage Drop Test Part 2 Expanded In Depth

Fuel Pump Electrical Circuits Description and Operation



Nov 06, 2017 | Lincoln Town Car Cars & Trucks

1 Answer

How do I put inline fuel pump in silverado 2500


What's the fuel pressure ? Hook up a fuel pressure gauge an test it yourself . fuel regulator ??? It's a fuel pressure regulator . I was starting rough and I had a diagnostic done. "They" said it was the fuel regulator.
Hard starting - not starting rough . What year is the truck , what engine does it have . If they don't know for sure what's wrong you better try another repair shop that know's how to diagnose .
Electrical problems can lead one to believe the fuel pump is bad . Doing voltage drop testing on the electrical circuit is a very good test.
Testing Electric Fuel Pump Problems with Voltage Drop Test
Plus doing current testing can pin point a bad fuel pump .
059 Engine Hard to Start or No Start Current Test for Fuel Pump

Sep 05, 2017 | Chevrolet Silverado 2500HD Cars & Trucks

1 Answer

2000 mercury grand marquis 4.6 fuel


Voltage drop test the electrical circuit , do know how to do automotive electrical testing . Lose connection , resistance in the circuit , lose ground Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia Testing Electric Fuel Pump Problems with Voltage Drop Test

Feb 27, 2017 | 2000 Mercury Grand Marquis

1 Answer

Fuel pump trouble shoot


You can use a voltmeter and test the power to the fuel pump. You can test power to the fuel pump relay as well. You can test the fuel pump relay with an ohmmeter on the RX1 setting to see if it is good. Make sure to check your fuses as well. Another good test is a fuel pressure test.
When you first turn your car's acc. on without starting the car, you should hear the fuel pump prime itself up for about 5-10 seconds. You should be able to hear it pump.

Dec 28, 2010 | 2004 Chevrolet Impala

1 Answer

1999 Grand Prix GT 3.8 won't start. Fuel Pump?


Testing fuel pump pressure an doing fuel pump electrical circuit testing should be done rather then guessing . Could have electrical problem that mite make one think it was a bad fuel pump . A couple simple test's to confirm , before replacing an finding out it didn't fix the problem .

Testing Electric Fuel Pump Problems with Voltage Drop Test
Plus the fuel pump is controlled by the PCM - engine computer via a fuel pump relay .
Fuel pump electrical circuit diagnosis no fuel pressure testing GM

Oct 29, 2017 | 1999 Pontiac Grand Prix

1 Answer

Will not start


have you tested the fuel pump yet? you do not need to remove it to do so.
if you have not tested the fuel pump yet, test for fuel pressure at the fuel test port on the fuel rail. if you have no fuel pressure, then test for voltage at the fuel pump fuse and relay. if all is well, and your final test for voltage at the weather pac terminal above the tank is good, then you should replace the fuel pump assy, or the wire leading to the pump itself in the tank. 99-01 gm vehicles have a poorly constructed fuel pump wire which tends to cause intermittent connectivity.

to get to the fuel pump, you will need a fuel line tool ( cheap and redily avail) used to diconect the snap over lines from the pump assy. there are two large straps holding the fuel tank in the vehicle, and the tank will need to be removed in order to get the pump assy out. there are two weather pac terminals on the top of the pump assy, and two fuel lines that will need to be removed. finally, the pump is held in the tank by a snap ring. after removal of the snap ring, the unit should lift easily out of the tank.

Jan 15, 2009 | 1999 GMC Jimmy

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