2002 z71 rough idle loss of power?

Asked by Josh Apr 07, 2020 at 06:46 PM about the 2002 Chevrolet Silverado 1500 LT Extended Cab 4WD

Question type: Maintenance & Repair

I was sitting in a drive through in a 2002 z71 with
260,000 miles on it and the service engine soon
light started flashing, and it started to have a very
rough idle. I got on the highway and had very little
power. After about 10 minutes the light stopped
flashing and the truck started to run normal. Any
ideas?

1 Answer
157,855

James answered 4 years ago

A flashing check engine light is warning you that the engine is misfiring and damaging the catalytic converter. If you've never had a tune up or you don't know if the truck has ever been tuned up you're overdue. Tune ups should be done every 100,000 miles. I'd do that first, especially since it stopped. You might have a failing spark plug. Hope that helps! Jim

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • 2002 z71 rough idle loss of power? 1 Answer

    I was sitting in a drive through in a 2002 z71 with 260,000 miles on it and the service engine soon light started flashing, and it started to have a very rough idle. I got on the highway and had ve...

    2002 Chevrolet Silverado 1500 LT Extended Cab 4WD

    -

    Maintenance & Repair

  • rough idle and loss of power 3 Answers

    My 2001 cavalier has suddenly started idling roughly after it gets up to running temperature and acts like it's going to stall out, while driving it feels like the transmission is kinda slipping es...

    2001 Chevrolet Cavalier

    -

    Maintenance & Repair

  • Rough idle and low power 10 Answers

    I have a 05 chevy silverado with the 4.3 v6. After about a minute after starting it, it begins running really rough and rich like a cylinder isnt firing. When driving, it has extremly low power unt...

    2005 Chevrolet Silverado 1500 Work Truck RWD

    -

    Maintenance & Repair

  • Rough idle, loss of power and occasional stalling 4 Answers

    1989 chevy 350 struggling while idling. When driving seems fine but definitely have a loss of power. Replaced fuel pump, fuel filter, egr, pcv and cleaned throttle body. Ive seen on here a possible...

    1989 Chevrolet C/K 1500 Silverado 4WD

    -

    Maintenance & Repair

  • Loss of Power 8 Answers

    I have a 2004 Chevy Silverado, was driving and turned on another highway and as i gassed on it to speed up, it lost power and made a loud sound, as i was pulling off the highway all the sudden it re...

    2004 Chevrolet Silverado 1500 LS RWD

    -

    Maintenance & Repair

Shortcuts

Search Chevrolet Silverado 1500 Questions

CarGurus Experts

  • #1
    Rowefast
    Reputation
    10,510
  • #2
    Andrew Olsen
    Reputation
    9,700
  • #3
    John Carson
    Reputation
    9,680
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 1500
132 Great Deals out of 6,515 listings starting at $3,975
Used Ford F-150
320 Great Deals out of 13,991 listings starting at $1,712
Used Chevrolet Silverado 2500HD
28 Great Deals out of 1,243 listings starting at $9,500
Used Toyota Tundra
30 Great Deals out of 1,367 listings starting at $6,255
Used Dodge RAM 1500
5 Great Deals out of 72 listings starting at $3,000
Used Toyota Tacoma
45 Great Deals out of 1,079 listings starting at $9,399
Used Chevrolet Tahoe
11 Great Deals out of 891 listings starting at $12,900
Used GMC Sierra 2500HD
22 Great Deals out of 1,521 listings starting at $5,500
Used Ford F-250 Super Duty
18 Great Deals out of 1,178 listings starting at $8,995
Used Chevrolet Camaro
14 Great Deals out of 282 listings starting at $5,995
Used Chevrolet Corvette
22 Great Deals out of 1,084 listings starting at $15,000

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. Content will be removed if CarGurus becomes aware that it violates our policies.