8–16 Copyright © 1998 General Motors Corp.
GENERAL TROUBLESHOOTING OF PERFORMANCE COMPLAINTS
WTEC II ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL
TRANSFER CASE (T-CASE)
(cont’d)
Worn C6 clutch plates
Rebuild C6 (refer to transmission
Service Manual)
B.
Makes Excessive Noise
Improperly shimmed bearings Check all T-case bearings as
directed in transmission repair
manual. Reshim as necessary.
C.
No Front Output Drive
Differential clutch bad (C7 piston
seals, C7 rotating seals,
C7 clutch plates, C7 check ball)
C7 electrical (wires, solenoids,
terminals, connectors)
Rebuild differential clutch (refer
to transmission Service Manual)
Inspect and repair C7 electrical
system (refer to Appendix E)
D.
Transmission Fluid Leaks
Damaged output seal, output
flange seal journal, gasketed
mating surfaces, bearing
endcaps, electrical connector, oil
scavenge line
Determine source of leak and
repair (refer to transmission
Service Manual)
Table 8–1. Troubleshooting Performance Complaints
(cont’d)
Problem
Probable Cause Suggested Remedy
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