I got a 03 z71 4x4 1500

Asked by May 06, 2014 at 11:09 AM about the 2003 Chevrolet Silverado 1500 Ext Cab Short Bed 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

Anybody have a clue what it could be?

18,575

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.

Your Answer

Add photo

Related Questions

Search Chevrolet Silverado 1500 Questions

Chevrolet Silverado 1500 Experts

#1 John Carson
John Carson
Reputation 2,350
#2 Rowefast
Rowefast
Reputation 1,930
#3 Silverado_owner_2006
Silverado_owner_2006
Reputation 1,650
View All

Related Models For Sale

Used GMC Sierra 1500
781 Great Deals out of 70,049 listings starting at $1,550
Used Ford F-150
2,067 Great Deals out of 208,406 listings starting at $290
Used Dodge Ram 1500
438 Great Deals out of 10,939 listings starting at $1,000
Used Chevrolet Silverado 2500HD
279 Great Deals out of 28,178 listings starting at $2,500
Used Toyota Tundra
439 Great Deals out of 34,876 listings starting at $1,991
Used Toyota Tacoma
506 Great Deals out of 42,384 listings starting at $1,995
Used Chevrolet Tahoe
590 Great Deals out of 32,673 listings starting at $1,500
Used Chevrolet Colorado
249 Great Deals out of 25,762 listings starting at $1,000
Used Chevrolet Camaro
246 Great Deals out of 31,906 listings starting at $1,000
Used Ford F-250 Super Duty
317 Great Deals out of 46,236 listings starting at $599
Used Chevrolet Silverado 2500
5 Great Deals out of 255 listings starting at $4,200
Used Chevrolet Silverado 1500HD
13 Great Deals out of 258 listings starting at $3,995
Used Ford Mustang
637 Great Deals out of 46,709 listings starting at $750
Used Nissan Titan
188 Great Deals out of 19,181 listings starting at $1,500

Used Cars For Sale

2017 Chevrolet Silverado 1500 For Sale
214 Great Deals out of 129,801 listings starting at $20,988
2016 Chevrolet Silverado 1500 For Sale
124 Great Deals out of 5,522 listings starting at $18,995
2015 Chevrolet Silverado 1500 For Sale
207 Great Deals out of 8,054 listings starting at $12,950
2014 Chevrolet Silverado 1500 For Sale
269 Great Deals out of 10,690 listings starting at $11,300
2013 Chevrolet Silverado 1500 For Sale
155 Great Deals out of 4,954 listings starting at $7,650

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.