Transfer case can be identified by an I.D. tag, located on rear case. I.D. tag provides model number, serial number and low range ratio. Date of manufacture is the serial number (I.D. number). This information is necessary when ordering parts. Model 242 transfer case is a chain-driven, 2-piece aluminum case, with full time operation. Torque input in 4WD high and low range is undifferentiated.
ADJUSTMENTS GEARSHIFT LINKAGE
Remove shift boot and shift to 4L position. Loosen trunnion nut. Adjust trunnion and shift rod until rod fits freely. Tighten trunnion nut and remove shim.
TROUBLE SHOOTING SYMPTOM DIAGNOSIS
Will Not Shift Or Difficult To Shift Into Gear
Check fluid level. Check linkage adjustment. Ensure transfer case external linkage is not binding. Internal parts may be worn or damaged.
Noisy In All Gears
Check fluid level. Ensure correct fluid is used. If fluid is okay, locate noise and check for possible internal mechanical problem.
Jumps Out Of Gear Or Noisy In 4WD
Transfer case not completely in gear; check shift linkage. Range fork damaged. Inserts are worn. Shift fork binding on shift rail. Low range gear worn or damaged.
Fluid Leaking From Vent Or Seals
Transfer case overfilled. Vent plugged. Output shaft seals are damaged or not installed properly.
Transfer Case Will Not Shift Through High Lock Range
Incomplete shift due to driveline torque load; momentarily release accelerator pedal to complete shift. Check tire pressure and tire wear. Vehicle overloaded; remove load and check shifting.
Source
Monday, September 27, 2010
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