2001 Focus error code 3rd cylinder miss fire. changed plugs and wires and still not fixed. whats next?

sonnyg
0

Asked by sonnyg Mar 15, 2010 at 11:18 AM about the 2001 Ford Focus LX

Question type: Maintenance & Repair

2001 Focus error code 3rd cylinder miss fire. changed plugs and wires and still not fixed. whats next?

2 Answers

Art Bartz
685

does it feel like it's miss firing? The code won't clear itself right way, the computer needs to see so many drive cycles without any faults before it clears the code and shuts the light off. If it is still miss firing, check to be sure you actually have spark in that hole...could be a bad coil. If you've got good spark, listen to the injector through a screwdriver to see if it's pulsing...it could be either stuck open, or stuck closed, either could cause a miss. Then I'd check for a vacuum leak at the intake gasket and at the injector on that cylinder, spray some brake clean at them and see if it changes the way it idles. If you've got spark, fuel, and no vacuum leak...start worrying and check compression. I don't know what compression is supposed to be, but all cylinders should be within 10%. If your dead hole has low compression, it could be one of several major problems, such as head gasket, cracked head, warped head, flat cam, cracked piston, bent or unseated valve, cracked valve seat, etc...

fordtech57
1,425

sonny the most common problems ive seen lately is coils, you should be able to clear code and reset check engine lite unless there is a hard fault ,such as a secondary ignition circuit concern,like an open in the coil circuit,hope this helps

Your Answer

Add photo

Related Questions

Search Ford Focus Questions

Ford Focus Experts

#1 Tom Demyan
Tom Demyan
Reputation 770
#2 kbro
kbro
Reputation 560
#3 chassy
chassy
Reputation 550
View All

Related Models For Sale

Used Honda Civic"
805 Great Deals out of 59,603 listings starting at $1,200
Used Ford Fiesta"
222 Great Deals out of 16,170 listings starting at $5,495
Used Toyota Corolla"
1,124 Great Deals out of 53,886 listings starting at $1,995
Used Ford Mustang"
648 Great Deals out of 33,471 listings starting at $1,595
Used Honda Accord"
1,094 Great Deals out of 69,161 listings starting at $500
Used Ford Escape"
1,058 Great Deals out of 59,705 listings starting at $1,400
Used Hyundai Elantra"
686 Great Deals out of 44,540 listings starting at $1,495
Used Toyota Camry"
1,550 Great Deals out of 78,754 listings starting at $1,200
Used Volkswagen Jetta"
545 Great Deals out of 35,249 listings starting at $995
Used Nissan Altima"
1,273 Great Deals out of 79,055 listings starting at $1,495
Used Chevrolet Malibu"
909 Great Deals out of 59,680 listings starting at $1,599
Used Nissan Sentra"
532 Great Deals out of 34,277 listings starting at $1,295

Used Cars For Sale

2015 Ford Focus For Sale
3 Great Deals out of 23,762 listings starting at $13,599
2014 Ford Focus For Sale
247 Great Deals out of 8,651 listings starting at $9,955
2013 Ford Focus For Sale
297 Great Deals out of 7,110 listings starting at $8,298
2012 Ford Focus For Sale
206 Great Deals out of 6,310 listings starting at $5,910
2011 Ford Focus For Sale
38 Great Deals out of 853 listings starting at $5,450