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07-20-2011, 09:22 PM
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Hummer Professional
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Join Date: Nov 2009
Location: Windermere, FL
Posts: 297
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Re: H2 slipping out of gear
When it slips out, is it subtle? I'm wondering if this is the same thing I'm experiencing that I wrote about in the thread titled, "surging between 45-50 MPH". The dealer found no codes, though.
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White 2005 SUT, Lifted 7.5" via Fabtech/custom work, Fabtech Dirt Logic 2.25 shocks, 40x15.5x22 Toyo's, black 22" Fuel wheels, 4.88 gears, Dynatech long tube headers, Magnaflow exhaust, Air-raid intake, Superchips programmer, Edlebrock panhard bar, Cognito UCA's, Kryptonite tie rods, Cognito pitman/idlar arm gussets, Hotchkis swaybars and trailing arms, Amp Research steps, E&G fender flares, PIAA SMR's, smoked roof lights (bulbs removed), black suede headliner, 13" JL's under seat
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07-20-2011, 10:36 PM
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Hummer Novice
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Join Date: Aug 2004
Location: SoCal
Posts: 20
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Re: H2 slipping out of gear
I reset all programming to stock. the Only code that it showed at one point was 1518.
Currently all codes are clear, and still experiencing problem.
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07-20-2011, 10:37 PM
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Hummer Novice
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Join Date: Aug 2004
Location: SoCal
Posts: 20
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Re: H2 slipping out of gear
When it slips out, it seems to definitely be at shift point, and engines RPM goes way up with no power...usually can shift back into neutral and then reengage, but consistently slips out typically between 2 - 3...very obvious.
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07-21-2011, 01:40 PM
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Hummer Professional
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Join Date: Nov 2009
Location: Windermere, FL
Posts: 297
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Re: H2 slipping out of gear
When I went to the dealer with my problem of surging RPM's, they said it could be the transmission having issues. The service manager made it sound like a fairly common problem. Not that it happens to 8 out of 10 trucks, but enough that he immediately thought of it. They didn't want to replace my transmission without trying some less expensive fixes first, but after a fuel system cleaning, etc., I'm still having the issue.
He suggested shifting to 3rd when I started experiencing it, and if it went away, it was most likely the trans. Haven't had a chance to try that as I don't drive the truck much lately, and the problem is very intermitent.
__________________
White 2005 SUT, Lifted 7.5" via Fabtech/custom work, Fabtech Dirt Logic 2.25 shocks, 40x15.5x22 Toyo's, black 22" Fuel wheels, 4.88 gears, Dynatech long tube headers, Magnaflow exhaust, Air-raid intake, Superchips programmer, Edlebrock panhard bar, Cognito UCA's, Kryptonite tie rods, Cognito pitman/idlar arm gussets, Hotchkis swaybars and trailing arms, Amp Research steps, E&G fender flares, PIAA SMR's, smoked roof lights (bulbs removed), black suede headliner, 13" JL's under seat
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