I got a 03 z71 4x4 1500

Asked by Anthony03 May 06, 2014 at 11:09 AM about the 2003 Chevrolet Silverado 1500 Extended Cab 4WD

Question type: Maintenance & Repair

The check engine light is flashing it
idles rough an when you try to give it
gas it kinda spits an sputters. Mash it
to the floor it'll get up an go till it
shifts out then goes back to crap,
once you smash on it it'll back fire in
the breather box. Hooked it up on
the computer it says cylinder 1
misfire so I changed spark plugs,
wires, fuel filter, coil packs, throttle
position sensor, pedal position
sensor an the vent valve put to
breather hose an air filter, an still
does the same thang...

2 Answers
61,205

Andrew answered 10 years ago

flashing check engine light means it has a severe missfire. What are the exact codes? (ex:P0300) A failing fuel pump can cause this along with other things, like a bad injector.

Mark helpful

Your Answer:

Related Questions

  • I got a 03 z71 4x4 1500 2 Answers

    The check engine light is flashing it idles rough an when you try to give it gas it kinda spits an sputters. Mash it to the floor it'll get up an go till it shifts out then goes back to crap, onc...

    2003 Chevrolet Silverado 1500 Extended Cab 4WD

    -

    Maintenance & Repair

  • 2007 Chevy Silverado z71 4x4 1500 2 Answers

    I have a couple issues going on... My 4x4 every so often says it needs to be serviced, my horn isn’t working, and my heater blower stopped as well, I’m still in the middle of making payments on it...

    2007 Chevrolet Silverado 1500 LTZ Extended Cab 4WD

    -

    Maintenance & Repair

  • Will a 1999 z71 truck box fit on a 2000 chevy 1500 Silverado 2 Answers

    Will a 1999 z71 truck box fit on a 2000 chevy silverado 1500

    2000 Chevrolet Silverado 1500 LS 4WD

    -

    Maintenance & Repair

  • 2005 chevy 1500 z71 7 Answers

    i have a 2005 chevy 1500 with the 5.3L im having overheating problems so i replaced the thermostat and upper and lower radiator hoses and its not leaking coolant and it only happens when i sit there f...

    2005 Chevrolet Silverado 1500 LS Crew Cab 4WD

    -

    Maintenance & Repair

  • Chevy silverado 1500 4x4 2 Answers

    Can i use parts off of a 95' chevy silverado 1500 4x4 for my 94' chevy silverado 1500 4x4?

    Chevrolet Silverado 1500

    -

    Maintenance & Repair

Shortcuts

Search Chevrolet Silverado 1500 Questions

CarGurus Experts

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

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 1500
138 Great Deals out of 7,231 listings starting at $3,950
Used Ford F-150
338 Great Deals out of 15,288 listings starting at $1,712
Used Chevrolet Silverado 2500HD
15 Great Deals out of 1,298 listings starting at $8,995
Used Toyota Tundra
34 Great Deals out of 1,163 listings starting at $8,500
Used Dodge RAM 1500
4 Great Deals out of 71 listings starting at $4,000
Used Chevrolet Tahoe
22 Great Deals out of 922 listings starting at $11,900
Used Toyota Tacoma
60 Great Deals out of 1,065 listings starting at $8,708
Used Chevrolet Colorado
21 Great Deals out of 1,519 listings starting at $6,800
Used GMC Sierra 2500HD
19 Great Deals out of 1,631 listings starting at $9,988
Used Ford F-250 Super Duty
25 Great Deals out of 1,210 listings starting at $7,995
Used Chevrolet Camaro
16 Great Deals out of 314 listings starting at $10,500
Used Chevrolet Corvette
26 Great Deals out of 1,064 listings starting at $15,871

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.