My H-3 HOPS

[RubHer Yellow Ducky]

Originally Posted by KenP

I have it happen all the time in parking lots. Even freshly paved ones. When one tire hits the line, that tire slides a bit causing a hopping feeling.

Ken

Thanks. There were no smooth paint lines, no small rocks, no nothing other then clean paved asphalt. Ran both H-3's in the same area (as close as possible), same speed, etc...

I am gona check the tire pressure in the Gray H-3. I had just adjusted the pressure in the Yellow Duck to 40psi. Both H-3's had cold tires altho the Gray one may have been slightly warm.

I will check the gas tanks to see if both have around similar gas weights altho I don't see how that would effect it.

I will advise and still seek any additional thoughts and comments.

Thanks everyone

RYD

[Dave LV]

Try going off road and cycle the 4x4 locked on and off, and then do the 4x4 low. Perhaps something go stuck....

[ChevyHighPerformance]

I noticed some of this and the PCM sees this too. When I'm going up a smooth winding hill (i.e., no washboard) at low-med throttle, I see knock retard (about 6 degrees) during each bend. During heavy throttle (not WOT) I don't see any knock retard on the same hill. I just assumed it low throttle, the three is a three way power struggle between the front wheels, rear wheels, and the engine and the torque transfer fed back as pulses into the engine creating some noise that was picked up by the knock sensor. During heavy throttle the engine won the power battle and front and rear wheels fought it out.

[Interleukin]

.............for a second there I thought Hummer may have came out with a new beer. I wonder if H1 HOPS would be "hoppier" than H3 HOPS.

[Desert Dan]

Maybe the center diff in the t-case is not un-locking for hwy use?

Are you turning the wheels all the way?

Maybe the inside rear tire is lifting up

[H3.007]

Damn! I was also excited that Hummer might be introducing a new hops for a beer line

Seriously though, I also notice a bit of tire bite in certain circumstances. It scared me at first but I am now used to it. I particularly notice it on newer parking lots, especially if it is damp and I have just shined the meat (errr... ok, I better say tires instead) I also notice this when leaving a level surface and entering a steep, downhill grade at an angle. If the maneuver is to the right, the driver's side front wheel will bite. I have never had full time 4x4 with Stablitrac so I reckon that the system is reacting to a perceived loss in traction. The Explorer Sport (what I traded for the H3), when locked in full 4x4, would also hop, per se.

I have chaulked it up to the new tech experience and have continued on my way

[RubHer Yellow Ducky]

Well I have an appointment next Tuesday for the HOPPING

SO

ALL YOU BEER HEADS and those others interested in the problem will be informed when I am...

RYD