Where is the ECM on 1996 GMC Sierra 1500 5.7 liter 4 wheel drive
GM usually puts their ECMs in one of 3 places. Behind the passenger's side kick panel just forward of the passenger's side door. On top of the coolant recovery tank in the engine compartment. Or under/behind the air filter box in the engine compartment. HTH. -Jim
Engine compartment, drivers side, just forward of the brake master cylinder. laying flat with electrical connectors facing towards the engine.
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