This is *not* a specific problem, but rather a symptom of an underlying issue. The cause could be many things, including:
* Faulty sensors: Numerous sensors monitor engine conditions (oxygen sensor, mass airflow sensor, throttle position sensor, etc.). A malfunctioning sensor can provide inaccurate data to the PCM, leading to reduced power.
* Problems with the fuel system: Issues like a clogged fuel filter, faulty fuel pump, or low fuel pressure can restrict fuel delivery, resulting in reduced power.
* Ignition system problems: A failing ignition coil, spark plugs, or wires can cause misfires, leading to reduced power and potentially engine damage.
* Issues with the exhaust system: A clogged catalytic converter or exhaust restriction can cause back pressure, limiting engine power.
* Air intake system problems: A clogged air filter or a leak in the intake system can disrupt the air-fuel mixture, leading to reduced power.
* Throttle body issues: A dirty or malfunctioning throttle body can restrict airflow.
* Transmission problems: While less likely to directly trigger "Reduced Engine Power," severe transmission issues *can* cause this message to appear.
What to do:
1. Don't ignore it: Driving with reduced engine power for an extended period can cause further damage.
2. Check the engine light: A "Check Engine" light will almost certainly be illuminated. This light stores diagnostic trouble codes (DTCs) that can help pinpoint the problem.
3. Have the codes read: You can use an OBD-II scanner (available at most auto parts stores) to read the codes yourself, or take your Suburban to a mechanic or auto parts store that offers free code reading.
4. Get it repaired: Once the problem is identified, have the necessary repairs performed by a qualified mechanic. Ignoring the issue could lead to more significant and expensive repairs down the road.
In short, "Reduced Engine Power" is a warning sign – get it diagnosed and fixed promptly to avoid potential engine damage.
