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Re: Service Engine Light Soon 1997 LT Blazer
P0740 Torque Converter Clutch Circuit Malfuction
P0758 Shift Solenoid B Electrical
P0753 Shift Solenoid A Electrical
P1860 TCC PWM Solenoid Circuit Electrical
Make sure you connections on the ECM are nice and tight and make sure they are pressed in all the way.
Also, check that ignition switch, it is a problem on all 1997 s-series trucks.
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1995 Factory Blazer Service Manual for sale, PM if interested.
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