Quote:
Originally Posted by Bad Luck
Check to see if the front driveshaft turns by hand with the transfer case in 4hi and 4lo. If the front driveshaft does not spin freely, then remove the switches on the transfer case and check for continuity. When you shift into 4hi the shift lever activates a switch which in turn sends a signal to activate the front add system.
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This is the answer right here. Likely a dirty/non-working switch on the transfer case to engage the front ADD.
Basically, the transfer case is correctly in 4WD, but the front doesn't get signaled to lock in for 4WD operation.
-Charlie
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'99 4Runner SR5 Auto -
4WD swapped
'89 Camry Alltrac LE 3S-GTE 5spd
'17 Chevy Volt Premier
'16 Honda Odyssey Elite
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