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


Asked by 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

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...

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

  • Got a 2001 Ford Focus SE Station Wagon that will not take fuel 4 answers

    I replaced the fuel pump, the fuel filter, all the hoses, all of the sensors and valves. I have no check engine light on. A full tank of gas and a new battery. Why it is not taking fuel. I even ...

    2001 Ford Focus SE Wagon


    Maintenance & Repair

  • Need help with electrical problem 35 answers

    I will try to make this as detailed as I can. I’m driving down the freeway at 40 mph in a bad snow storm. I turn on my lights and I loose my entire dashboard. Odometer, speedometer, gas gauge, ever...

    2003 Ford Focus SE Wagon


    Maintenance & Repair

  • Problems with Ford Focus transmission solenoid. 8 answers

    I don't know anything about cars, but I have a 2008 Ford Focus that my husband and I bought in September 2011. It's the worst car I've ever had, and it's a complete nightmare to own, because in the ...

    2008 Ford Focus


    Maintenance & Repair

  • Engine revs and loses power when driving. 16 answers

    I have had this car in for a fix at two different dealers. When driving at highway speeds the tachometer revs to 5 or 6,000 RPMs car loses power. The first fix was a problem with the cruise control ...

    2006 Ford Focus


    Maintenance & Repair

  • I like to have more powerful headlights for my focus..any recommendations???? 14 answers

    I want more power lights to my focus headlights

    Ford Focus


    Car Customization

Search Ford Focus Questions

Ford Focus Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,200
#2 dandyoun
Reputation 850
#3 Su'ad Barakat
Su'ad Barakat
Reputation 780
View All

Related Models For Sale

Used Honda Civic"
1,122 Great Deals out of 58,279 listings starting at $1,300
Used Ford Fiesta"
257 Great Deals out of 17,135 listings starting at $2,995
Used Toyota Corolla"
1,413 Great Deals out of 67,055 listings starting at $1,295
Used Ford Mustang"
721 Great Deals out of 41,403 listings starting at $900
Used Ford Escape"
1,674 Great Deals out of 94,577 listings starting at $500
Used Honda Accord"
1,266 Great Deals out of 77,938 listings starting at $1,395
Used Toyota Camry"
1,584 Great Deals out of 98,335 listings starting at $895
Used Hyundai Elantra"
845 Great Deals out of 51,486 listings starting at $990
Used Volkswagen Jetta"
630 Great Deals out of 32,414 listings starting at $1,200
Used Nissan Altima"
1,404 Great Deals out of 87,809 listings starting at $1,195
Used Volkswagen GTI"
110 Great Deals out of 6,104 listings starting at $2,900

Used Cars For Sale

2016 Ford Focus For Sale
31 Great Deals out of 24,159 listings starting at $9,370
2015 Ford Focus For Sale
242 Great Deals out of 6,537 listings starting at $8,995
2014 Ford Focus For Sale
378 Great Deals out of 8,111 listings starting at $5,900
2013 Ford Focus For Sale
197 Great Deals out of 4,723 listings starting at $5,495
2012 Ford Focus For Sale
171 Great Deals out of 4,629 listings starting at $3,995