Question about 2003 Chevrolet Suburban 1500
The engine lignt is on and the message reducced engine power is displayed. The vehicle has very power when pressing the gas pedal.
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Posted on Jan 02, 2017
I had the same problem with my 2003 suburban and it was the battery ,bought a new one and it fixed it right up. hopefully it will be the same with yours
Posted on May 17, 2009
THis problem is caused for
Lost of correlation between ACELERATOR PEDAL POSITION
AND THROTTLE ACTUATOR MOTOR.
Because your car has no acelerator cable.
The morer probable is the Trhottle actuator motor come damaged. 90%. 10% the accelerator pedal position.
If you turn of the car it will work OK> for a few time.
But the Service engine soon. will stay on.
Yuo can go to at ANy ADVANCE AUTOPART, AUTOZONE or NAPA AUTOPART. They make a diagnostic free.
If not. I recomend get the car scanned for see exactly why the light come on. and make the right repair procedure.
OK>> I hope this help on your question...
Thank you for use fixya.
Posted on Jul 25, 2008
SOURCE: 2004 chevy silverado
The above descriptions of the connector are very good. I washed the engine compartment yesterday, and immediately started getting the reduced enginer power code on the CIC, not performance. After reading several posts, I checked the connector on my 2003 2500HD, and found that the connector was not seated well and had gotten water in it. I cleared the water and the reconnected. The cables running from the fuse box to the connector are so short, the connector is in a bind and is pulled off-center. That is why the connector wasn't seated properly. The code went away, and the performance returned. By the way, be sure to do this after pulling the negative cable on your battery.
Posted on Apr 30, 2009
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