I have a p0304 code which indicates misfire on cylinder 4. The car seems 2 shake once in awhile and fuel economy has gone down significantly. I already changed the coils for cylinder 3 and 4 but still no luck. Can anyone help on how I could fix this?

Asked by migration_chevysucks... Aug 06, 2014 at 08:38 PM about the 2007 Chevrolet Cobalt LS Sedan FWD

Question type: Maintenance & Repair

p0304 code, low fuel economy now, car starts to shake at times, and check engine light
is still on after replacing coil for cylinder 4 and 3 and reset.

143,755

T_S_T answered 9 years ago

Is your car up for recall on your igintion switch?And if so has it been repaired?

Mark helpful

migration_chevysucks... answered 9 years ago

yes and it has already been repaired

1 people found this helpful.

Mark helpful

143,755

T_S_T answered 9 years ago

If 1 and 2 are getting fire,may be bad crank sensor or your ECM.

2 people found this helpful.

Mark helpful

migration_chevysucks... answered 9 years ago

I also have a error code that indicates a lean to rich sensor threshold fail

Mark helpful

Dan answered 6 years ago

Hey did you figure this out? Have the same thing going on with cylinder 2

Mark helpful

Your Answer:

I have a p0304 code which indicates misfire on cylinder 4. The car seems 2 shake once in awhile and fuel economy has gone down significantly. I already changed the coils for cylinder 3 and 4 but still no luck. Can anyone help on how I could fix this? 5 Answers

p0304 code, low fuel economy now, car starts to shake at times, and check engine light is still on after replacing coil for cylinder 4 and 3 and reset.

2007 Chevrolet Cobalt LS Sedan FWD

-

Maintenance & Repair
I have a 2006 cobalt, lock cylinder gets stuck, car will still turn on and off 2 Answers

My cobalt makes a beeping noise as if the car door is open when the key is out of the ignition. The key will still turn off and on the car, but when I turn off the car I can feel that it won't make ...

2006 Chevrolet Cobalt LS Coupe FWD

-

Maintenance & Repair
2006 Cobalt all of the sudden I lost power steering, cruise control, power windows, windshield wipers. The a air bag light came on and the middle of the display on the dashboard (I.e. where the check in light and seat belt light is) is out. The car has driven fine until I started this morning. Now my driver's side window is stuck down and it's barley drivable. I went to a Chevy dealership and they say all recalls on the car were fixed in 2014, oddly enough including the ignition, power steering, and air bag ... I asked why it was all broken again. No clear answer. Can someone please help me 3 Answers

all of the sudden I started my car this morning and I had lost power steering, cruise control, power windows, windshield wipers. The service air bag light came on and the middle of the display on t...

2006 Chevrolet Cobalt LS Coupe FWD

-

Maintenance & Repair
I have a 2008 Chevy Cobalt and I have put new brakes and rotors on this car 2 months ago and just this past Saturday I put in a new wheel hub bearing on passenger front. And when I go to get on my brakes it has that dragging sound like brakes against rotors, like bad brakes. Very confused...any ideas? 15 Answers

Put new brakes and rotors on both front 2 months ago, front end alignment and new tires less than six weeks ago. New wheel hub bearing with abs on passenger front. Stopped the whining while driving ...

2008 Chevrolet Cobalt LT Coupe FWD

-

Maintenance & Repair
Why is my cylinder 4 still misfiring? 1 Answer

I just changed all 4 spark plugs and all 4 ignition coils and I’m still getting a p0304 code! I need help with this because this is causing my car to die when I use my ac. It’s summer time in Texa...

2007 Chevrolet Cobalt LT Sedan FWD

-

Maintenance & Repair

Looking for a Used Cobalt in your area?

CarGurus has 13 nationwide Cobalt listings starting at $1,995.

Used Chevrolet Silverado 1500

170 Great Deals out of 7,481 listings starting at $6,995

Used Chevrolet Impala

8 Great Deals out of 131 listings starting at $3,495

Used Chevrolet Malibu

56 Great Deals out of 1,042 listings starting at $2,995

Used Chevrolet Corvette

23 Great Deals out of 767 listings starting at $18,999

Used Honda Civic

192 Great Deals out of 3,926 listings starting at $2,877

Used Ford F-150

315 Great Deals out of 13,484 listings starting at $4,888

Used Chevrolet Colorado

33 Great Deals out of 1,145 listings starting at $2,499

Used Ford Mustang

35 Great Deals out of 1,585 listings starting at $5,977

Used Chevrolet Trailblazer

17 Great Deals out of 1,301 listings starting at $18,995

Used Ford Focus

16 Great Deals out of 484 listings starting at $2,995

Used Toyota Corolla

131 Great Deals out of 2,230 listings starting at $3,495

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.

I have a p0304 code which indicates misfire on cylinder 4. The car seems 2 shake once in awhile and fuel economy has gone down significantly. I already changed the coils for cylinder 3 and 4 but still no luck. Can anyone help on how I could fix this?

5 Answers

Your Answer:

Looking for a Used Cobalt in your area?

Shortcuts

Search Chevrolet Cobalt Questions

CarGurus Experts

Find great deals from top-rated dealers

Related Models For Sale

I have a p0304 code which indicates misfire on cylinder 4. The car seems 2 shake once in awhile and fuel economy has gone down significantly. I already changed the coils for cylinder 3 and 4 but still no luck. Can anyone help on how I could fix this?

5 Answers

Your Answer:

Related Questions