Question about 2007 Hummer H3
HAVE THE FRONT END CHECKED. THERE ARE STOPS TO PREVENT THE WHEELS FROM TURNING TO FAR. THESE MAY BE MISSING
Posted on Dec 09, 2014
Testimonial: "Thank you - will check that out. Do you think it could be possible that the switching unit needs replaced and the truck is in High 4 even though the light on unit does not indicate that. When I try to switch it back & forth the light flashes when going into High 4 before a solid light. When I switch it back it does not flash just changes to a solid light on all wheel drive. Does that make sense."
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Posted on Jan 02, 2017
Hi, if it feels like it is binding when turning, and there is some feedback in the steering wheel, it is stuck in four wheel hi lock. Try shifting it to four wheel hi lock, and see if anything changes. The transfer cases were manufactured with a plastic mode fork, and that can wear over time. Once it wears, it no longer can keep the case in four wheel open, and what your feeling is the front wheels trying to spin at one with the rear. On surfaces with some slippage, you notice this as traction. On surfaces with grip, you notice it as scrubbing. The front tires in turns, spin at different speeds as one another, and together spin at a different propshaft speed as the rear. Four wheel open range is about a 60/40 split front/rear, in four high lock it is 50/50.
Posted on Oct 03, 2010
My dealer finally found the problem on my 2008 H3. It was misfiring cylinder 1. The coil was bad so they replaced the plug and coil and its not back to normal. there was actually water (moisture) in the coil and spark plug. I have seen on other forums that this is a known problem. Also had the injectors flushed and it runs great now.
Posted on Dec 01, 2012
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