Issues...
Thread Starter
5 Year Member
Joined: Apr 2009
Posts: 2,939
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From: MN
Issues...
1997 F-150 with 4x4, 4.6L, Switch for the 4x4.
I get a loud humming sound with the 4x4 when it is engaged. It engages fine, disengages fine, but just hums.
The other issue is when I hit the brakes with the 4x4 on hard where ABS goes off, it thuds, but all is breaking correctly, etc.
I have a posi rearend, but when 4x4 is engaged, should both front tires be locked up?
I get a loud humming sound with the 4x4 when it is engaged. It engages fine, disengages fine, but just hums.
The other issue is when I hit the brakes with the 4x4 on hard where ABS goes off, it thuds, but all is breaking correctly, etc.
I have a posi rearend, but when 4x4 is engaged, should both front tires be locked up?