Question about Hummer H2 2002 2006 Cv 78 03 L Legend Series Vehicle Specific Mount

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2004 H2 hummer gear shift stuck in drive - Hummer H2 2002 2006 Cv 78 03 L Legend Series Vehicle Specific Mount

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 59 Answers

SOURCE: hummer h2

light green most likely, the easiest way to find out is pop out one of your taillights quick and have somebody sit in the vehicle with the key on and put it in reverse then probe the wires coming off your reverse bulb socket with a test lamp until you find power, this way you know which wire for sure. Thanks for using fixya!!

Posted on Mar 15, 2009

SOURCE: 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.

Posted on Jul 17, 2009

  • 315 Answers

SOURCE: Hummer H2 2003, shifting problem

Yea, hummers are notoriously unreliable. They are gas gusslers too.
I'm assuming this is an automatic?
When the transmissions computer detects any malfunctions, it will give you a check engine light, or something along those lines.
Do the normal checks such as checking the transmission fluid level as per the user manual.

For further diagnostics you'll need to take it to a mechanic. It's impossible to diagnose a problem like this without driving the car and being able to reproduce the problem.

Posted on Aug 09, 2009

  • 7 Answers

SOURCE: 2004 hummer h2 leaks water from roof over front

Like the first guy said. The small roof lights that run along the front edge of the roof leak water, usually during car washes or very heavy rain.the corners were my culprit. Clear silicone was the answer.

(Dont get it anywhere you dont want. use sparingly as it can be a pain to get completely off a nice paintjob)

Posted on Aug 22, 2009

  • 7 Answers

SOURCE: Hummer H2 engine won't turn over, key won't

Dead Battery? Bad starter motor?

Try pushing on the brake and making sure its all the way in park.

Turn the steering wheel back an forth a little to remove the key.

None of those work, Call triple A, find a shop.

Posted on Aug 22, 2009

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1 Answer

At what RPM 1st gear should shift on a H2 Hummer 2003


well is that hummer that a 2 ton or 4 ton vehicle ?

would take a lot of revs for first gear to make it roll from a standing start
think it will be fitted with an 6 speed automatic transmission

guessing only from my heavy vehicle driving experiences
first should change below 3000 rpm

if transmission was slipping in first gear you would know

suggestion
ring up the local hummer service division for the correct answer





26308702-vt3chhdyttrsn1qpus3sq421-4-0.jpg

Oct 12, 2016 | 2003 Hummer H2

1 Answer

Ignition switch key lock solenoid passat


when you shut it off were the wheels cranked sideways-sometimes this puts pressure on the locking system and won't let it disengage-try moving the steering wheel back and forth while applying pressure to the key-I hope this helps-cheers Denny

Nov 08, 2013 | 2004 Hummer H2

1 Answer

2003 h2 hummer is having shifting problems with transfercase. and the shifter moves freely even if the truck is off with out using break pedal


I had this problem with my 3002 H2, it was the transfer case. The OEM Transfer case has a plastic shifting fork. this wears out and eventually will cause the transmission to go out, I purchased a re-built transfer case on-line of $700.00 and had it installed for $500.00. problem solved....and the re-built has no plastic shifting forks.

Mar 27, 2013 | 2003 Hummer H2

1 Answer

Just bought 2005 H2 and 4 wheel drive is stuck in 4 hi how do I get it to pop out?


HOW DO I GET MY 2006 H2 HUMMER STUCK OUT OF 4 WHEEL DRIVE

Jun 25, 2010 | 2005 Hummer H2

1 Answer

Hummer H2 2003, shifting problem


Yea, hummers are notoriously unreliable. They are gas gusslers too.
I'm assuming this is an automatic?
When the transmissions computer detects any malfunctions, it will give you a check engine light, or something along those lines.
Do the normal checks such as checking the transmission fluid level as per the user manual.

For further diagnostics you'll need to take it to a mechanic. It's impossible to diagnose a problem like this without driving the car and being able to reproduce the problem.

Aug 09, 2009 | 2003 Hummer H2

1 Answer

My H2 2003 hard or take time to shift when running to 35+ MPH


check your tranny fluid and filter. you may have a clog some where or could be low on tranny fluid.

Jul 25, 2009 | Hummer H2 Cars & Trucks

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

2 Answers

MY 2004 H2 Hummer is in park... I can start it but no matter what I do I cant get it out of park??? any Idea's


Do your brake lights work? It might be the brake switch or the shift interlock solenoid.

Jun 08, 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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