S10/T10 Blazer 4WD L4-137 2.2L DSL (1984)
FIGURE 2 - THM 2004R TRANSMISSION NAMEPLATE
FIGURE 3 - TYPICAL 200C CONTROL VALVE ASSEMBLY
FIGURE 4 - TYPICAL 200AR CONTROL VALVE ASSEMBLY
To repair this condition, a new throttle valve plunger and throttle valve bushing should be installed. Refer to Figures 1 and 2 for transmission nameplate
identification information and to Figures 3 and 4 for service parts indentification. The chart provided indicates service package part numbers,
transmission model applications and 1986 model start of production Julian dates for the THM 200C and 200-4R transmissions.
IMPORTANT:
This bulletin covers only those THM 200C, THM 200-4R transmission models that have the new service parts currently available.
Additional information will be provided for those THM 200C, THM 200-4R models not covered in this bulletin, when the parts are
available for service.