Reduced Engine Power

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  #1  
Old 10-26-15, 06:17 PM
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Reduced Engine Power

My 2004 trailblazer,a couple of days ago displayed "reduced engine power" on the dash. The truck started sputtering/idling erratic,it also drives about 10 miles an hour max....also after I shut it down and crank it up again it revs really high and drops down to a shaky idle. Please help.
 
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Old 10-26-15, 06:39 PM
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Tune up due. Spark plugs, wires, air filter. Run Seafom through gas tank to clean passages.
 
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Old 10-26-15, 06:43 PM
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probably has codes stored in the pcm that will need to be read with a scanner to determine what the problem is probably suggest you see your local dealership for diagnosis.
 
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Old 10-26-15, 07:16 PM
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sorry to say its time for a throttle body. these use a drive by wire system. and what happens is a gear or sensor goes bad in the throttle body causing it to default to an idle. very very common. they have recalls out for newer models, i dont believe they did it for older years.
 
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Old 10-27-15, 05:30 AM
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Have the trouble codes read. They will tell you what you need to know.
 
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Old 10-28-15, 07:20 AM
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Go to Autozone , O'Reilly , etc & they will read the codes for free .

If it is the throttle body , you may get buy with buying a spray can of cleaner & cleaning it .

But see what the codes say .

These " fly by wire " systems are a " solution in search of a problem " . And a way to sell expensive parts . :-(

God bless
Wyr
 

Last edited by WyrTwister; 10-28-15 at 09:49 AM.
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