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

75,595

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
    1,060
  • #2
    Neal Turner
    Reputation
    940
  • #3
    Eric Fritz
    Reputation
    920
View All

Related Models For Sale

Used GMC Yukon XL
246 Great Deals out of 15,374 listings starting at $1,900
Used Chevrolet Tahoe
857 Great Deals out of 44,892 listings starting at $1,980
Used GMC Yukon
623 Great Deals out of 23,453 listings starting at $1,200
Used Ford Expedition
351 Great Deals out of 17,700 listings starting at $1,989
Used Cadillac Escalade ESV
137 Great Deals out of 6,069 listings starting at $3,900
Used Cadillac Escalade
267 Great Deals out of 12,718 listings starting at $2,000
Used Chevrolet Silverado 1500
2,706 Great Deals out of 196,455 listings starting at $699
Used Chevrolet Silverado 2500HD
347 Great Deals out of 33,007 listings starting at $2,499
Used Ford F-150
3,205 Great Deals out of 239,472 listings starting at $1,300
Used Toyota Sequoia
132 Great Deals out of 5,460 listings starting at $1,999
Used Lincoln Navigator
85 Great Deals out of 3,965 listings starting at $1,500
Used Nissan Armada
168 Great Deals out of 10,317 listings starting at $3,400
Used Dodge Durango
312 Great Deals out of 25,680 listings starting at $1,500
Used Ford Excursion
13 Great Deals out of 838 listings starting at $2,300
Used Ford Explorer
1,180 Great Deals out of 76,956 listings starting at $2,100

Used Cars For Sale

2017 Chevrolet Suburban LT 1500 4WD For Sale
34 Great Deals out of 2,711 listings starting at $40,530
2016 Chevrolet Suburban LT 1500 4WD For Sale
21 Great Deals out of 525 listings starting at $30,500
2015 Chevrolet Suburban LT 1500 4WD For Sale
24 Great Deals out of 486 listings starting at $25,000
2014 Chevrolet Suburban LT 1500 4WD For Sale
16 Great Deals out of 198 listings starting at $15,900
2013 Chevrolet Suburban LT 1500 4WD For Sale
8 Great Deals out of 192 listings starting at $13,995

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.