Knock Sensor in 2001 GMC sierra 2500 HD 6.0L
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Knock Sensor in 2001 GMC sierra 2500 HD 6.0L
Truck had loss of power and knock sensor codes were pulling. Both sensors bad. Replaced them both, but it does not seem to have fixed the problem. Engine still has loss of power and won't get above 3500 rpm. Any suggestions? Injector? Fuel Filter? ECU?