Reduced engine power

Asked by Apr 10, 2017 at 12:55 PM about the 2004 Chevrolet TrailBlazer LS

Question type: Maintenance & Repair

Alternator went out.
Changed it something popped when cranking it.
Now REP.

1 Answer

85,285

Should have the vehicle scanned for trouble codes to verify what it is, but Reduced Engine Power a lot of the time has to do with the Throttle Positioning Sensor. Since it is out front by the alternator, may have disturbed the wires. Common for a wire to break inside the insulation by the connector going into the TPS.

Your Answer:

Chevrolet TrailBlazer Experts

  • #1
    bigdogracer
    Reputation
    1,120
  • #2
    Tom Demyan
    Reputation
    980
  • #3
    tennisshoes
    Reputation
    860
View All

Related Models For Sale

Used Chevrolet Tahoe
646 Great Deals out of 38,236 listings starting at $1,199
Used Jeep Grand Cherokee
1,159 Great Deals out of 78,419 listings starting at $1,000
Used Chevrolet Silverado 1500
1,765 Great Deals out of 155,976 listings starting at $1,700
Used GMC Envoy
44 Great Deals out of 1,610 listings starting at $1,000
Used Chevrolet TrailBlazer EXT
6 Great Deals out of 767 listings starting at $1,800
Used Chevrolet Impala
496 Great Deals out of 26,149 listings starting at $995
Used Ford Explorer
883 Great Deals out of 66,579 listings starting at $988
Used Chevrolet Equinox
1,165 Great Deals out of 87,294 listings starting at $2,295
Used Chevrolet Blazer
732 listings starting at $900
Used Dodge Durango
321 Great Deals out of 25,572 listings starting at $1,999
Used GMC Yukon
332 Great Deals out of 22,021 listings starting at $2,100

Used Cars For Sale

2007 Chevrolet TrailBlazer LS For Sale
3 Great Deals out of 79 listings starting at $1,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.