Question about 1997 Chevrolet Suburban
Suburban seems to be stuck in 4 wheel drive low. Engine is running at a higher RPM.
Posted by Anonymous on
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Posted on Jan 02, 2017
For a temporary fix so the car can drive, remove the fuse for the four wheel drive. it won't actuate the four wheel. The car is always in 2wheel drive. the fuse is located under the hood, the very right side of the of the fuse box, the third fuse up from the bottom. This can be checked in the owners manual. When I need four wheel dr I place the fuse back in. I haven't fixed the problem yet but can drive it 2wheel on the road. think it is the control module for the four wheel dr located under the dash board behind the glove box. Dealer part for $450, I would rather install and remove a 10cent fuse
Posted on Jul 29, 2008
Is the check engine light on? If so check what codes are stored. It sounds like the m a p sensor.
Good luck dont forget to rate.
Posted on Mar 08, 2009
Pull the kick panel on the passenger side. there is a small box mounted there that is the computer that controls the actuator for the 4wd system. this is notorious for problems due in fact that the connector likes to pull out and away from the module. I had the same problem and the solution is simple.. take a long zip tie and get it between a few of the wires and around the module. tie it in and have a nice day.. it wont come off or try to pop out anymore and you should have no issues getting into 2wd, 4wd h, 4wd L.
Posted on Jun 21, 2009
It sounds as if it is a module eprom issue. When the key was turned on the program was scrambled.Try disconnecting the negative and positive battery cables. Once both are disconnected from the battery, touch the two cables together for 1 minute, this will drain the reserve energy in the module. This process will reset the modules to factory default.
Reconnect the battery, positive first then the negative.
Posted on Jul 20, 2009
Just serviced my own 4x4 Suburban, by buying a 2nd hand encoder motor and replaced the old one, which was trashed by the winter salt. The device is prone to failure since it's made of alluminium and water has an easy time of entering the unit and trashing it.
CAUTION: Abbreviated gratuitous information of how an encoder motor was serviced. If unqualified to deal with repair, seek professional service.
CAUTION: Read at one's own risk.
To replace it, you need to crawl under the vehicle and remove the front drive shaft;
Disconnect the electric harness to the encoder motor, followed by unbolting it.
Take replacement encoder motor and install. There may be an issue with aligning the cogged cam of the transfer case to the encoder motor. If so, the vehicle's 4 wheels will need to be raised off the ground. The engine started, transmission in Park, and using a Vice-Grip® wrench gently rotate cam clockwise approximately 1/16 to 1/8 of an inch, then while set in this position, stop engine. Now attempt to align and attach the encoder motor.
After successfully attaching new encoder motor, attach its wiring loom.
Posted on Sep 01, 2009
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Apr 19, 2014 | 1997 Suzuki Baleno
In Chevrolet vehicles, code P1875 is given the description "4WD Low Switch Circuit Electrical." A fault has been sensed in the electrical switch circuit for the low setting of the four-wheel drive when this code appears. The problem sensed is within an electrical circuit that connects the Vehicle Control Module to the Transfer Case Control Module. good-day !
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