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I'm replacing a fuel pump on a 2003 hummer h2, do i have to removed the gas tank? or does the truck has access onder the rear seat.. thanks...

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Hi, the tank has to be removed, there is no trap door. Good luck...Coop

Posted on Sep 27, 2010

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2003 Hummer H2 acts like it is not getting enough gas. Will run and when press pedal backs off like not enough fuel. Have changed mass air flow sensor as directed by code reader,fuel pump, fuel filter...

try replacing the ignition coils and spark plugs, as a last resort try replacing the ecm that may also be the problem you may be able to get parts from a recycler its cheaper than the dealer

Jan 20, 2015 | 2003 Hummer H2

1 Answer

How to drop the fuel tank and get a fuel tank diagram for 2003 H2 Hummer?

Watch some You Tube Video

When you ask about a fuel tank
I guess you have not done any & may not
want to

Not a nice job,looks easy, but is isn't & it's dirty

Pay someone with a lift that has done a few

Aug 17, 2014 | 2003 Hummer H2

1 Answer

Clicking Noise in rear when H2 is turned off

Some vehicles have an electric fuel pump that will continue to run, and click, for a couple of minutes after the motor is turned off.
You should hear that noise in the area of the gas tank..

Feb 21, 2013 | 2003 Hummer H2

1 Answer

I only have 5 volts at the fuel pump on my 2003 h2 hummer

You may have damaged the wiring to the fuel pump speed control module or the module is defective, have the local GM dealer test the system performance to confirm this.

Sep 04, 2012 | 2003 Hummer H2

1 Answer

I have 2003 hummer h2 it run out gas, i put gas inside but is not start?why.

TURN YOUR KEY ON AND LET YOUR FUEL PUMP CYCLE FOR 10 SECONDS you will hear it run ,being that you ran it dry it takes a bit to get the gas through the lines to the throttle body

Sep 26, 2010 | 2003 Hummer H2

1 Answer

My hummer ran out of gas and after filling it it wonts start it cranks but it doesnt start

ther is a inersua switch some were on that hummer plus check with the dealer that H2 has som kind of fuel sending unit problem if you park it on a steep hill and with low fuel it will triger it and it will crank but wont start but will have gas the delear reset my blank..... button I for gt wht but chek first or you may have burened out the fuel pump been there too.....the pump is in the gas tank I think this is your problem put car in park break on then have some one turn the key on the fuel pum shuld hum for about 3 seconds then shut off....part cost about 190.00 dont get tricked into paying 700.00 for a factory pump

Sep 09, 2010 | 2003 Hummer H2

1 Answer

How do you replace a fuel pump on a 2003 h2 hummer?

You have to drop the gas tank. The fuel pump is located inside.

Jul 02, 2010 | 2003 Hummer H2

2 Answers

My 2003 h2 died this morning while driving. All

disconnect harness to the pump and jump with test light, turn key on and the light should go on for a few seconds

Nov 28, 2009 | 2003 Hummer H2

3 Answers

Replacing fuel pump need to remove rear seat need to know how

First you will need to releave fuel pressure......

next remove the rear seat cushion to gain access to fuel pump access panel.....

Removing Fuel Pump....

Jan 29, 2009 | 2003 Mitsubishi Outlander

3 Answers

I've got bad gas and need to know the easiest way to drain the tank or otherwise fix the problem.

The tank will have to be removed from the vehicle and completely dried out.Gas tanks no longer have drain plugs as they did 50 years ago.Remove the fuel pump from the top of the tank,and thoroughly clean the tank with brake cleaner and compressed air and let air dry for awhile.The fuel pump and filter will need to be replaced with new,and after all the reinstallation,the fuel line must be disconnected at the engine,and the line flushed with new,clean gasoline as well as the return fuel line.Spark plugs will have to be replaced also.

Aug 12, 2008 | 2003 Toyota Matrix

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