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All time four wheel drive is not working

(1993 Jeep Grand Cherokee)
in Milton Freewater, OR on January 02, 2010
went into the mountains today and my all time four wheel drive failed to work . tried to shift into low range and that lowered the speed but still just rear wheel drive. could it be a relay? or fuse ?
Displaying 1 answers & 1 comments
Popular Answer
on January 02, 2010
Could be one of these 2 switches depending on which transfer case your jeep came with (vacuum or electric) Both are available at Napa auto parts or www.napaonline.com or int the case of the vacuum model a vacuum hose leak

Transfer Case Select Switch, (4) Ports;
Product Line: Balkamp
Part Number: BK 6002943
$9.99

Features & Benefits Duplicates Original Equipment In Fit & Function
Warranty 12 Months or 12,000 Miles Whichever Occurs First
Attributes # Switch Terminals : (4) Ports
Transfer Case Switch
Application Information: 1993 Jeep Grand Cherokee
Comments: w/ 231 Transfer Case;w/ Vacuum Switch


Transfer Case Select Switch, (1) 2-Prong Connector; Dorman Automotive
Product Line: Balkamp
Part Number: BK 6002942
: $23.99
Features & Benefits Duplicates Original Equipment In Fit & Function
Warranty 12 Months or 12,000 Miles Whichever Occurs First
Attributes # Switch Terminals : (1) 2-Prong Connector
Contents : (1) Transfer Case Switch

Application Information: 1993 Jeep Grand Cherokee
Comments: w/ 242 Transfer Case;w/ Electric Switch
on September 28, 2010
this answer makes no sense, the transfer case does not have a vacuum or electric front disconnect like some other Jeeps and GM suvs with similar transfer cases. Probably the viscous coupling if it is Quadratrac all-time 4x4.
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