My 04 trailblazer has 2whl drive, all 4 whl drive, 4whl hi and 4 whl low. when i have it in all 4 wheel the rear tires sound and feel like they are completely flat. i get out and looked all tires are properly inflated. its kinda like they are trying to get a grip on ice/snow but cant then there is a thump and it keeps thumping like they are flat. what can this be?
Coming from the rear? I could see the noise coming from the front if your axels are bad. It seems weird cause the vehicle would make noises like that in normal driving because they dont change when you switch to 4 wd
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what wheel spins, double posted with this one add small fact.
front or rear.???? spins, gee, must i ask this?
you have open axles, right>? and this is normal
it is !
unless you use Lim.S.D. Axles (an option new)
or drag your brakes, creating a virtual Lim_S_D.
Limited slip differentials. (closed axles)
my 2008 wrangler does that, via software and uses ABS to lock a spinning wheel. (drag it)
but i cant drive on ice free pavement, are you, if yes, stop
PT 4wd is not for that. at all
you need full time,or AWD to do that magic.
Assuming no differential work was done because those ratio's must stay the same. Gear wind up is what causing the problem make sure all tire size's are equal. If had fluid replacement I hope you had the quad-trac fluid installed in transfer case. It is purple fluid and aftermarket has no equivalent.
Unless you have a locking differential in the rear, then the drivers rear would just spin, and the passenger side rear would do nothing. Now on the front, the passenger side front is the power wheel. If the passenger side front wasn't spinning either, then you may have an actuator problem. The other problem too look into would be the TCCM (transfer case control module) could be going bad.
aslong as you dont have locking hubs you can shift into 4 wheel high if you need 4whl low youwill need to stop and put into neuteral first and the same thing to take it out of 4whl low .otherwise you can shift on the fly or if you prefer driving hope this helps you out
many things, first check the vacuum hoses underneath the batery rack to make sure there are no kinks, if thats ok, check the oil levels in both the transfer case and front diff, if that's ok, you'll have to check the fork system on the front diff, and also something real stupid put ignition on shift to neutral and press 4 low then 4 hi and see what it does, if stuck in 4 low it will make like a clutch slipping sound but i've seen it stuck and make no noise cause you really have to go through neutral to in and out of 4 low.... good luck
Well I replaced the Transfer Case Control Module and the 4 button selector swith on the dash, and my 20001 Chevrolet Blazer Lt is still stuck in 4whl. drive high. Does anyone have any advice on this, Ive also already checked all fuses under the hood and in the truck, all are ok.