Why is my cylinder misfiring?

20

Asked by Jun 09, 2014 at 07:45 PM about the 2002 Ford Focus ZX3

Question type: Maintenance & Repair

I baught a 2002 Ford Focus with a supercharger.  The person i baught it from melted the piston in cylinder two. I rebuilt that cylider back as good as new.  When we got it back together the cylinder was still dead.  I did a compression test, leak down test, changed the coil pack, spark plugs and spark plug wire.  Everytrhing is functioning correctly and in specs of the other cylinders that are working.  If im getting spark, fuel and compression to that cylinder,  Why would it still miss fire?

7 Answers

66,525

Well,if its firing on all other cylinder,s but that one,you say you have spark and fuel,the only thing i can think of is check your #2 fuel injector,may be gas to the fuel rail,but not firing at the injector,check the injector may be bad,just my thought,s..Good luck with it

1 of 1 people found this helpful.
20

I changed out the fuel injector from another cylinder and the problem remains on the same one.

66,525

Then make sure you are getting fire to that injector,check wires,and ohm it,to check and make sure it,s getting fire.

1 of 1 people found this helpful.
20

I changed the wires, spark plugs and coil pack and it is getting spark.

1 of 1 people found this helpful.
66,525

I know you have checked this,that is why i say check your injector wire,s may be pinched not grounded?Check the fire to injector.You have checked every thing else>?

1 of 1 people found this helpful.
20

I appriciate it and i will look into it and respond back.

20

I checked the fuel line and it is fine. Could it have something to do with the valves and would the compression be in specs if so?

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

Focus

Looking for a Used Focus in your area?

CarGurus has 54,865 nationwide Focus listings starting at $1,200.

ZIP:

Search Ford Focus Questions

Ford Focus Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,360
#2 dandyoun
dandyoun
Reputation 1,130
#3 Su'ad Barakat
Su'ad Barakat
Reputation 930
View All

Related Models For Sale

Used Honda Civic
882 Great Deals out of 84,979 listings starting at $750
Used Ford Fiesta
158 Great Deals out of 19,384 listings starting at $3,688
Used Ford Mustang
696 Great Deals out of 44,783 listings starting at $1,500
Used Toyota Corolla
1,003 Great Deals out of 69,994 listings starting at $1,800
Used Ford Escape
1,326 Great Deals out of 85,023 listings starting at $950
Used Honda Accord
1,055 Great Deals out of 68,303 listings starting at $1,000
Used Hyundai Elantra
651 Great Deals out of 41,704 listings starting at $900
Used Toyota Camry
1,244 Great Deals out of 84,502 listings starting at $750
Used Nissan Altima
1,285 Great Deals out of 75,808 listings starting at $1,695
Used Chevrolet Malibu
1,169 Great Deals out of 79,728 listings starting at $2,500
Used Volkswagen Jetta
590 Great Deals out of 44,494 listings starting at $800

Used Cars For Sale

2017 Ford Focus For Sale
23,810 listings starting at $9,429
2016 Ford Focus For Sale
217 Great Deals out of 7,680 listings starting at $7,999
2015 Ford Focus For Sale
104 Great Deals out of 4,432 listings starting at $6,600
2014 Ford Focus For Sale
210 Great Deals out of 6,948 listings starting at $4,950
2013 Ford Focus For Sale
107 Great Deals out of 2,847 listings starting at $4,995

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.