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Hummer H2 Auto Transmission problem !!!

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Hummer H2 Auto Transmission problem !!! - 6/12/2007 6:35:39 AM   
Bichito

 

Posts: 3
Joined: 6/12/2007
Status: offline
Hello guys,

I recently buy a H2 from a friend, year 2004 and believe it or not has only 1600 Miles on it.

He never drive it , only start it check everything and of again.

I don't have experience on the H2, but this truck is weird with the auto transmissions shifts.

Looks like the 1rst , 2cnd , 3rd works fine but when you drive faster the transmission never shift to 4th speed.

Also when you apply full throttle at low speeds the shifts are erroneous and to high RPM's.

Any idea on this???

Thanks in advance.

Daniel
Post #: 1
RE: Hummer H2 Auto Transmission problem !!! - 6/12/2007 6:54:59 AM   
ZYNE


Posts: 2453
Joined: 10/9/2006
From: Cincinnati, OH
Status: offline
ZYNE's photo gallery 		My recommendation .. take it to a dealer and have it looked at. 

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-03 HUMMER H2, Birch White. 35" BAJA MTZ, AVS Window Vent shades, Sirius, rear DVD, billet gas door, tail light guards, IPCW smoked cab lights, Sylvania SilverStar Ultra's, SMA Brushguard, etc.

(in reply to Bichito)
Post #: 2
RE: Hummer H2 Auto Transmission problem !!! - 6/12/2007 7:08:02 AM   
Bichito

 

Posts: 3
Joined: 6/12/2007
Status: offline 		No dealers here, South America.

THX

(in reply to ZYNE)
Post #: 3
RE: Hummer H2 Auto Transmission problem !!! - 6/12/2007 7:30:37 AM   
ghoticov


Posts: 140
Joined: 4/7/2007
Status: offline
quote:

ORIGINAL: Bichito


Hello guys,

I recently buy a H2 from a friend, year 2004 and believe it or not has only 1600 Miles on it.

He never drive it , only start it check everything and of again.

I don't have experience on the H2, but this truck is weird with the auto transmissions shifts.

Looks like the 1rst , 2cnd , 3rd works fine but when you drive faster the transmission never shift to 4th speed.

Also when you apply full throttle at low speeds the shifts are erroneous and to high RPM's.

Any idea on this???

Thanks in advance.

Daniel



Me thinks your friend put the screws to you.

(in reply to Bichito)
Post #: 4
RE: Hummer H2 Auto Transmission problem !!! - 6/12/2007 8:20:56 AM   
littlehummerboy

 

Posts: 2176
Status: offline
littlehummerboy's photo gallery 		Maybe check the transmission fluid levels?  COnsider a tranny flush? If it has not been driven alot, then it may need some "driving".  I let one of my Camaros sit for 2 years, then when I went to drive it, the auto tranny didn't shift right for the first little while, but after a day all was right again. 

(in reply to Bichito)
Post #: 5
RE: Hummer H2 Auto Transmission problem !!! - 6/12/2007 6:11:12 PM   
alpha4wd

 

Posts: 16
Joined: 3/26/2007
Status: offline 		let it get warm and check the fluid level, these transmissions are very sensitive to fluid level. also i've seen a few problems with the input housing inside the transmission causing no fourth gear.

(in reply to littlehummerboy)
Post #: 6
RE: Hummer H2 Auto Transmission problem !!! - 6/13/2007 5:08:31 AM   
Bichito

 

Posts: 3
Joined: 6/12/2007
Status: offline 		Is getting better, Im going to replace the Hyd fluid and filter, any Idea where can I order the filter online??

Thanks

Daniel

(in reply to alpha4wd)
Post #: 7
RE: Hummer H2 Auto Transmission problem !!! - 6/13/2007 12:36:41 PM   
Xtreme


Posts: 258
Status: offline
Xtreme's photo gallery 		Ditto with first checking the condition and level of the transmission fluid. If that doesn't 'fix' the problem, then I too would suggest taking your H2 in to a GM dealer...if your have one nearby within your country. I'm unsure if this is related, but I had experienced the same thing with an older Ford 'Ranger XLT' a couple of years ago. I'm unsure about the newer vehicles with computer controlled 'this and that', but the Ford's 'no fourth gear' problem was later deemed to be a defective overdrive module. After it was replaced, the 'tranny' shifted fine and just like it did when the truck was new.

_____________________________

"The only place where success comes before work is in the dictionary."


(in reply to Bichito)
Post #: 8
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