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My 2003 Chevy Suburban runs fine and everything is good, then all of a sudden the reduced engine power message comes up. I can pull over kill the engine for twenty or thirty seconds and then we go on. Sometimes it won't happen again for the rest of the day and sometimes it might happen within ten miles. It happens regularly first thing in the morning.
Re: My 2003 Chevy Suburban runs fine and everything is...
This may be a computer problem or fuelpump, i would start by having the computer scanned for any stored codes. these codes will help in pin pointing the problem so start there. hope this is helpful. good luck.
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www.underhoodservice.com/tech-tip-reduced-engine-power-message-dis... Dec 10, 2012 - Tech Tip: Reduced Engine Power Message Displayed on GM Vehicles ... Model year 2008-'10 vehicles must have the engine control module (ECM) reprogrammed ... Do not drop the electronic throttle control components.
Sounds like either Air mass sensor, Air mass meter or finally the EGR valve this is the exhaust gas recycler I would say that is the fault when they start to go this is what they do until finally the car will barely move.
Also I would check all your air pipes for leaks make sure there is no rips or tears in the pipes, The car will drive fine like you say until you ease of the gas to a stop position it **** in to much air and kills the engine. Air faults are cheaper so look there first.
engine was sent into what they call the limp mode ...because................ either your tranny or engine has issues.....run your trouble codes and check your tranny fluid
The Reduce Engine Power problem on my 03 Suburban went away when I had to replace the fuel mixing sensor. I damaged the sensor by topping off with E85 (ethanol) by mistake late at night. The vehicle just would not turn on in the morning. The vehicle had to be towed to the dealer. I was in Carlsbad NM about 800 miles from home. I had no choice but to pay $1,100 to get it fixed. At the same time the Reduce Engine Power problem went away. And thanks to God it has not come back for nine 9 months now.
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