EGR Valve - Revised Diagnostic Chart
Model Year1982
Bulletin No. 82-I-238
File in Group 64A
Number 38
Date Feb. '83
SUBJECT: Inoperative EGR Valve
MODELS AFFECTED: 1982 Centurys Equipped With 3.0L Engine (Code "E")
Figure 6E1-64A EGR Check - 3.0L:
The diagnosis chart on the back of this Bulletin is to be used in place of the EGR chart printed on Page 6E1-60 in the 1982 Century and Skylark Chassis and Body Service Manual.
FIGURE 1:
If it is found that the EGR valve is not receiving the proper signal and the diagnosis chart leads you to an ECM replacement, the EGR, EGR blocking, and EFE solenoid assembly must also be replaced if the day build code is prior to 618. See Figure 1 for location of day build code on solenoid.
Solenoid assemblies built prior to build code 618 may have electrical conditions such as a loose winding, intermittently resulting in a short-circuit of the output driver within the ECM.