Why does my Chevy 2500 have reduced engine power?
Video: Fixing a 2007 Chevy 2500 HD with a “Reduced engine power” message. Whenever possible, troubleshoot any suspect component or circuit to avoid unnecessary repairs. Throttle control systems are a common source of Reduced Engine Power issues. Photo courtesy of Musay16 on Wikimedia.
Why does my GMC Sierra have reduced engine power?
Hello, I have a 2008 Gmc Sierra 2500HD Duramax Diesel with about 55,000 miles on it. It keeps getting a “reduced engine power” message on the dash, then it doesn’t have any power, its like putting a brick under the gas pedal.
Why is my Chevy Silverado 2500 HD not working?
The throttle position sensor (TPS) on the Chevrolet Silverado 2500 HD is notorious for failure which causes: This issue is related to the throttle position sensor, and can be caused by faulty wiring to the TPS, bad connection at the TPS, or a failed TPS.
How is engine power reduced in a Duramax?
Re: Engine Power Is Reduced.. The reductant system supplies the Selective Catalyst Reduction (SCR) stage of the vehicle’s exhaust aftertreatment system with the Diesel Exhaust Fluid (DEF) required to reduce exhaust Oxides of Nitrogen (NOx) levels.
What does it mean when GM says reduced engine power?
In some instances, the PCM may actually cut off fuel delivery to the engine, rendering the vehicle undrivable. When this happens, GM’s Engine Reduced Power Mode is being implemented as a “fail-safe” mode (also known as a “limp” mode).
How is engine power reduced in a Duramax 6600?
SilveradoSierra.com • Engine Power Is Reduced.. : Duramax 6600 6.6L V8 Diesel – Page 2 Re: Engine Power Is Reduced.. The reductant system supplies the Selective Catalyst Reduction (SCR) stage of the vehicle’s exhaust aftertreatment system with the Diesel Exhaust Fluid (DEF) required to reduce exhaust Oxides of Nitrogen (NOx) levels.
What’s the speed limit on a Silverado Sierra?
The messages alternate every 5 seconds until acknowledged by the driver; however, the Speed Limited to 89 km/h (55 mph), and 6 km/h (4 mph) Max Speed Next Fuel Fill, remain alternately displayed on the DIC. The DEF Indicator in the instrument panel flashes continuously.
In some instances, the PCM may actually cut off fuel delivery to the engine, rendering the vehicle undrivable. When this happens, GM’s Engine Reduced Power Mode is being implemented as a “fail-safe” mode (also known as a “limp” mode).
SilveradoSierra.com • Engine Power Is Reduced.. : Duramax 6600 6.6L V8 Diesel – Page 2 Re: Engine Power Is Reduced.. The reductant system supplies the Selective Catalyst Reduction (SCR) stage of the vehicle’s exhaust aftertreatment system with the Diesel Exhaust Fluid (DEF) required to reduce exhaust Oxides of Nitrogen (NOx) levels.
The messages alternate every 5 seconds until acknowledged by the driver; however, the Speed Limited to 89 km/h (55 mph), and 6 km/h (4 mph) Max Speed Next Fuel Fill, remain alternately displayed on the DIC. The DEF Indicator in the instrument panel flashes continuously.
What’s the max speed on restart on Silverado?
The messages alternate every 5 seconds until acknowledged by the driver; however, the 89 km/h (55 mph) Max Speed on Restart, remains displayed on the DIC. The DEF Indicator in the instrument panel is illuminated.