Common questions

Why does my Chevy HD say reduced engine power?

Why does my Chevy HD say reduced engine power?

Unplug the connector and check for dirt or corrosion. Tug at the wires on the harness connector to check for loose wires. Check the connections on both ends of the wires to verify good connections. Watch the following two videos that show how a damaged wire caused a Reduced Engine Power message to appear in a 2007 Chevy HD.

What does it mean when your car says reduced power?

In most cases, the Engine Power Reduced warning indicates that your car’s performance has been intentionally limited. “Reduced Engine Power” Message Your car’s primary computer, often known as the powertrain control module (PCM), triggers Reduced Power Mode when it detects a system failure.

What does reduced engine power mean on a Chevy Impala?

The reduced power displays on the console, the car slows to a crawl and the Check Engine light comes on. I travel 40+ miles each way to work in Atlanta traffic with speeds around 65-80 (big trucks).

Why does my GM car have a reduced engine power warning?

Some GM vehicles will enter Reduced Engine Power Mode when the engine begins to overheat due to cooling system issues. The PCM triggers the mode to protect the engine from further damage. In some instances, the Reduced Engine Power warning may illuminate to inform the driver that the vehicle lacks power due to an underlying condition.

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.

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).

What does the reduced engine power warning light mean?

Many GM vehicle models come equipped with a Reduced Engine Power (REP) warning light, similar to the Check Engine Light (CEL). When this light (or both lights) comes on, you’ll notice the engine barely responding to the accelerator.

What to do if YouTube engine power is reduced?

Reduced Engine Power. Here is the FIX. If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

Author Image
Ruth Doyle