Question about 2003 Hummer H2

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I CAN'T TURN LEFT OR RIGHT WITH MY 2003 H2

WHAT CAN I DO MY DAD THINKS IT COULD BE THE GEAR BOX?

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It probably is the gear box if you cant turn right or left...i cant think of anything else that would keep you from being able to. id take it in and have it checked but i guess its not driveable? do you know anyone that can work on vehicles that might be able to change it out for you?

Posted on Jan 08, 2009

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I have a hummer h2 2003 in the mornin when i start the hummer up i get a squeaking sound that come from the front end when i make right or left turns sound like it kind need gear oil or like it needs a...


If it is the front end, it may be the shocks or the supports. You should lube all your wheel bearings, joints, and tie rods to see if that helps.

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Mar 04, 2011 | 2003 Hummer H2

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i am an ase certified tech 34 yrs exp. working on one as i write this for the same problem. the running board has a motor and gear box bolted together.un bolt 3 bolts remove motor ck operation.my problem is in gear box slipping inside.after removing motor see if board will pull out easily.put motor back on and see if you can pull board out with little effort.if motor is ok replace gear box. listen for popping noise in gear box.

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Knock Sensor Location on 2003 Hummer H2


The knock sensors are located under the intake manifold one of the left bank and the right bank.

Nov 22, 2010 | 2004 Hummer H2

1 Answer

I am parked on a slight hill and my Hummer H2 (2003) will not go into gear. Any suggestions?


well depending on witch way you are on the hill if the back is going downwards have someone push on the back of it while you try to put in gear. make sure to always put the parking brake on before you put it in park when on a hill this keeps it from putting all the weight on the trans.

May 17, 2010 | 2003 Hummer H2

1 Answer

WHY DO I HEAR A POPPING NOISE WHEN I TURN STEERING WHEEL LEFT OR RIGHT ON H2 2003 HUMMER


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May 11, 2010 | 2003 Hummer H2

1 Answer

I have a hummer h2 2003 whith a p0135 heater mal funtion bank 1 sensor 1


What you have to do is replace the o2 sensor on bank 1 sensor 1.This is the front sensor on the left side on the exhaust system.Left side is bank 1 and right side is bank 2.Make sure the connections are good first.Usually it`s the internal heater in the o2 sensor.Hope this helps.Good luck.

Dec 12, 2009 | 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

1 Answer

My 2003 h2 hummer will initally not shift from


Check the linkage that goes from the shift lever down to the transmission. It sounds like somewhere along the line, it has become disconnected or has broken.
if that parts are clean then It sounds like you have a shift control solenoid that has high resistance causing the hard shift you describe. Scan the PCM for trouble codes if none are present you could have a internal transmission problem.

Jul 17, 2009 | 2003 Hummer H2

1 Answer

Transferbox problems


It's actually stuck on the 4xL, if you keep driving it it might coz a big damage to ur 4wd gear box.
you should change the transferbox (it cost here in Dubai around 1350 US$ with labor charges).
it happened to me 2 months back.

Aug 26, 2008 | 2003 Hummer H2

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