Question about 2003 Chevrolet Suburban 1500

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Low engine power displays and in fact the vehicle barely moves

2003 Suburban barely moves under its own power. Low engine power is displayed.

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  • carlyle95 May 06, 2009

    mine did the same thing. i found a sensor on the front right side of the engine that had worked lose after resecuring it the problem went away, but not sure if they were connected but may be worth looking into.

  • Anonymous Mar 20, 2014

    low engine power and stalls

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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

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Could be the fuel pump in the Gas tank. Mine crapped out and caused the car to have reduced power for awhile before it quit all together.

Posted on Apr 30, 2009

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Parking brake pedal still goes to the floor and parking brake barely holds the vehicle 2003 suburban


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On a 2003 Suburban, the dash display reads 25% remaining, but the oil stick is not showing any oil. I was told the dipstick actually will only show 2 quarts low. Is this accurate?


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Apr 11, 2011 | 2003 Chevrolet Suburban 1500

1 Answer

We have a 2003 chevy suburban 5.3 vortec it dies when warmed up


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.

Hope this helps

Regards
Dan

Jan 31, 2010 | 2003 Chevrolet Suburban 1500

1 Answer

2005 suburban stabilatrac disabled


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.

Aug 12, 2009 | 2003 Chevrolet Suburban 1500

2 Answers

Trying to locate MAF sensor on 2003 suburban 1500 to check/clean as solution to engine performance and PO171/174 code displayed on personal diagnostic scanner.


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Jan 18, 2009 | 2003 Chevrolet Suburban 1500

1 Answer

DISPLAY READS ENGINE POWER REDUCED


Display reads "Engine Power Reduced" and sometimes won't accelerate beyond idle. Other times it accelerates normally. We have not yet noticed a pattern.

Jul 01, 2008 | 2003 Chevrolet Suburban 1500

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