Question about Cars & Trucks
Front wheel drive. rear wheels do not engage. How to test?
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: hummer h2 transfer case
Only way for this to happen on an H2 (AWD) is for something to break rearward of the lockup hub. Take a look at the splines between the intermediate shaft and centerdifferential or even the teeth on the forward sun gear and/or stepped pinion on the center diff.
As long as you have the t-case torn down for repair be sure to upgrade to the new aluminum mode fork (production upgrade to old plastic forks thru end of 2007 or so). You should also upgrade the rear half of the housing to the 2008 version which has a pressed-in rear prop bushing (better bushing and is also replaceable.
Posted on Sep 30, 2008
SOURCE: 4 WHEEL DRIVE DONT WORK
first off your heater dial swithc is buggered. and as for the four wheel drive is it all electric diff locks or do you have to get out and lock hubs in etc?
Posted on Dec 23, 2008
Check the awd fuse first, if this is ok then it is likely to be in the transmission the awd section is seperate to the rest of the trans, it has its own solonoid pack which can be a problem. Take to a trans specialist for an accurate diagnosis if the fuse is ok. If the fuse is missing come back to me for further info
Posted on Dec 24, 2008
SOURCE: subaru legacy wagon
This problem is usually caused when the transfer solenoid/valve assembly goes bad, it's located in the transmission extension housing & needs to be replaced. it can be done without removing the transmission.
Posted on Jan 08, 2009
SOURCE: my 4 wheel drive won't engage
Sportages uses a vacuum system to lock front hubs - turn the wheels all the way to one side, then look from behind the wheel on the side you are turning 'from" There should be a rubber hose from the vacuum fitting near the wheel opening from the engine compartment to the wheel itself. If these are damages or disconnected, the front axles will engage into 4wd but the hubs will not lock and the front wheels will not be driven by the axles.
Posted on Mar 15, 2009
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