How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Dan Your Own Question

Dan, Technician
Category: Ford
Satisfied Customers: 22868
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
Type Your Ford Question Here...
Dan is online now
A new question is answered every 9 seconds

2001 Ford Escape: cylinder..misfire..Changed plugs, coil

Customer Question

2001 Ford Escape 3.0 getting cylinder 3 misfire. Changed plugs, coil, and upper intake gaskets. Only happens when wet or snowing when cold first thing. Then warms up and runs perfect!
Submitted: 6 years ago.
Category: Ford
Expert:  Tim West replied 6 years ago.
Thanks for visiting
Check the Orange/Yellow wire between the coil and pin 78 of the Powertrain Control Module (PCM) for high resistance or a short to ground. Repair the wire as needed and retest.

2. If the wire is OK, try swapping the coil from cylinder 3 to one of the front cylinders and redo the Key On Engine Running (KOER) test.

3. If the code changes to the cylinder where the coil was moved to, replace the coil. If the code is the same, run a new wire from the PCM to the coil in case it is breaking down under a load.

4. If the wire is not a problem and the coil has been ruled out, perform a compression check and running compression test to determine if a mechanical concern exists. If a mechanical condition is not the cause, replace the PCM. NOTE: If the PCM is replaced, it will need to be configured.

5. If a mechanical concern does exist, dis-assemble and repair as needed and retest for proper operation.
Customer: replied 6 years ago.
Already changed coil from 6 to 3 and same thing. I do not accept this answer
Expert:  Tim West replied 6 years ago.
Okay, I will opt out so another expert can help.
Customer: replied 6 years ago.
thank you
Expert:  Dan replied 6 years ago.
Hello from what you are describing it could be a few problems such as wiring to injector or coil. You can use a led voltmeter to verify you have good power/ground at the injectors and coil when problem is happening if you dont repair whatever wire isnt showing correctly and if it is good then the problem is either a worn valve or lower intake gasket. It figure out which one you will need to do a cylinder leak down test when vehicle is cold. To do this you need to take regulated air and inject it into #3 cylinder with the cylinder top dead center on compression stroke so all the valve are closed. If you hear air in the intake then its a intake valve or if you hear it out the exhaust you have an exhaust valve. If it holds air like its doing you can try as tim said and do a running compression test with vehicle started to verify compression is the same on the cylinder when cold as the other. If compression is good replace the lower intake gasket. Let me know if you have questions, thanks.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

  • AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on. Rich D USA
< Previous | Next >
  • AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on. Rich D USA
  • Because of your expertise, you armed me with enough ammunition to win the battle with the dealer. They are installing a fuel filter and fuel pump at no charge to me. Molly USA
  • I needed help with my car on Saturday a response in 5 minutes, and it was the perfect solution. Thanks again to your service. Jason V. Kirkland, WA
  • I do know, after going though this with JustAnswer, that I can somewhat trust my mechanic but I will always contact you prior to going there. BR New Jersey
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA

Meet The Experts:

  • Ron


    ASE Certified Technician

    Satisfied Customers:

    23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
< Last | Next >
  • Ron's Avatar


    ASE Certified Technician

    Satisfied Customers:

    23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
  • Chris (aka- Moose)'s Avatar

    Chris (aka- Moose)


    Satisfied Customers:

    16 years experience
  • John Mc's Avatar

    John Mc

    Ford Technician

    Satisfied Customers:

    19 years Ford Lincoln Mercury experience
  • Chuck's Avatar


    ASE Certified Technician

    Satisfied Customers:

    33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance
  • Cam's Avatar


    Journeyman Automotive Technician

    Satisfied Customers:

    GM Grand Master Technician 2007. 14 years Automotive experience.
  • Richard's Avatar


    ASE Certified Technician

    Satisfied Customers:

    12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.
  • Mike V.'s Avatar

    Mike V.

    Auto Service Technician

    Satisfied Customers:

    25 years experience on all makes and models, Licensed NYS Inspector.