03 Chevrolet Suburban LT Reduced Engine power message?

5

Asked by Jan 23, 2017 at 02:49 PM about the 2003 Chevrolet Suburban LT 1500 4WD

Question type: Maintenance & Repair

Purchased a 2003 Chevrolet Suburban with the 5.3L v8 in it a couple months
back. Drove good until it started throwing "Reduced Engine Power". Won't let
the vehicle go over 15 mph when it does this and have to pull over and shut it
off and let it sit before it will drive without doing it. Have noticed that it usually
only does it when accelerating. Anyone know what this is?

2 Answers

73,055

Have it checked for codes, the common one is the p1516, which is the Throttle Positioning Sensor and wiring plugin. Wires will break internally at the plugin, when I purchased mine, it came with a new wire plugin. Any code that is p1515 to p1519 that comes up.....P1516 CHEVROLET - Throttle Actuator Control Module, Throttle Actuator Position Performance...Possible causes; Faulty Throttle Actuator Control (TAC) module, Throttle Actuator Control (TAC) module harness is open or shorted, Throttle Actuator Control (TAC) module circuit poor electrical connection, Check Throttle Actuator Control (TAC) module connector for water, Binding or bent throttle plate-failed throttle body....Check this out....https://youtu.be/U2DjMcM_Quk

1 of 1 people found this helpful.
5

Ok. Will have it checked for codes.

Your Answer

Chevrolet Suburban Experts

  • #1
    Andrew Olsen
    Reputation
    1,010
  • #2
    Neal Turner
    Reputation
    900
  • #2
    Eric Fritz
    Reputation
    900
View All

Related Models For Sale

Used GMC Yukon XL
224 Great Deals out of 12,995 listings starting at $1,495
Used Chevrolet Tahoe
625 Great Deals out of 36,241 listings starting at $1,800
Used GMC Yukon
409 Great Deals out of 20,823 listings starting at $1,495
Used Ford Expedition
397 Great Deals out of 21,930 listings starting at $1,500
Used Cadillac Escalade ESV
117 Great Deals out of 5,397 listings starting at $3,955
Used Chevrolet Silverado 1500
2,151 Great Deals out of 183,297 listings starting at $1,693
Used Cadillac Escalade
223 Great Deals out of 11,032 listings starting at $2,888
Used Chevrolet Silverado 2500HD
345 Great Deals out of 29,278 listings starting at $2,650
Used Toyota Sequoia
121 Great Deals out of 5,372 listings starting at $2,695
Used Ford F-150
2,229 Great Deals out of 181,368 listings starting at $1,500
Used Lincoln Navigator
95 Great Deals out of 5,124 listings starting at $1,900
Used Ford Excursion
6 Great Deals out of 785 listings starting at $2,750
Used Nissan Armada
149 Great Deals out of 8,818 listings starting at $3,977
Used Dodge Durango
291 Great Deals out of 20,261 listings starting at $999
Used Ford Explorer
812 Great Deals out of 62,844 listings starting at $1,495

Used Cars For Sale

2017 Chevrolet Suburban LT 1500 4WD For Sale
11 Great Deals out of 3,656 listings starting at $46,898
2016 Chevrolet Suburban LT 1500 4WD For Sale
13 Great Deals out of 436 listings starting at $37,888
2015 Chevrolet Suburban LT 1500 4WD For Sale
8 Great Deals out of 361 listings starting at $27,995
2014 Chevrolet Suburban LT 1500 4WD For Sale
4 Great Deals out of 149 listings starting at $18,995
2013 Chevrolet Suburban LT 1500 4WD For Sale
5 Great Deals out of 181 listings starting at $14,995

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.