Why won't my Focus zx3 run right??!!

Asked by Randy Nov 17, 2020 at 12:05 AM about the 2001 Ford Focus ZX3

Question type: Maintenance & Repair

I have replaced everything related to this problem and the fuel pump is fine.
Injectors are fine. I replaced the air mass sensor, the air filter, the fuel
pressure sensor, and the fuel filter. What else could cause a loss of 75% of
the power. Upon acceleration the car just bogs with intermittent proper firing.

2 Answers
3,360

Justin answered 4 years ago

When it does run, you said (and I'm paraphrasing) that its running rough? And that you're getting surges like its trying to get normal power....what do the spark plugs look like? (Curious about the "charring coloration") is it black from carbon buildup or a grayish like a lean gas mixture?

Mark helpful

Randy answered 4 years ago

Spark plugs are brand new. Car starts fine. When I accelerate it just bogs down. I lose 75% power. Everything has been replaced. I'm pulling my hair out here. OBD showed problem with fuel pressure sensor and check engine light was on. Changed sensor, check engine light went off but car still bogs upon acceleration.

Mark helpful

Your Answer:

Related Questions

  • Why won't my Focus zx3 run right??!! 2 Answers

    I have replaced everything related to this problem and the fuel pump is fine. Injectors are fine. I replaced the air mass sensor, the air filter, the fuel pressure sensor, and the fuel filter. What ...

    2001 Ford Focus ZX3

    -

    Maintenance & Repair

  • Afford focus zx3 windshield 1 Answer

    Are the windshields in a ford focus zx4 and a ford focus zx3 interchangeable.

    2003 Ford Focus ZX3

    -

    Maintenance & Repair

  • Tailights not working in my 2000 Ford Focus Zx3 2 door hatchback 2.0 DOHC Zetec 1 Answer

    My tailights aren't working in my 2000 Ford Focus Zx3 2 door hatchback with a 2.0 DOHC Zetec engine and I already put brand new Fuses And Relay in it

    2000 Ford Focus ZX3

    -

    Maintenance & Repair

  • What's wrong with my 2003 Ford Focus ZX3? 2 Answers

    I am not a knowledgable car person, so I'm afraid I can only describe symptoms. My car is a 2003 Ford Focus ZX3, and today I noticed a new problem. The whole car will shake violently at around 45+...

    2003 Ford Focus ZX3

    -

    Maintenance & Repair

  • 2001 Ford Focus ZX3 5 Answers

    I have a 2001 Ford Focus ZX3 hatchback we changed out fuel pump cuz car wouldn't start ran fine all day the next day my car died again like it was starving for gas or air so we changed the fuel fi...

    2001 Ford Focus ZX3

    -

    Maintenance & Repair

Focus

Looking for a Used Focus in your area?

CarGurus has 481 nationwide Focus listings starting at $2,950.

Postal Code:

Shortcuts

Search Ford Focus Questions

CarGurus Experts

  • #1
    Savoy_1800
    Reputation
    3,300
  • #2
    dandyoun
    Reputation
    2,650
  • #3
    Gene Arnett
    Reputation
    2,400
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford Fiesta
13 Great Deals out of 153 listings starting at $3,777
Used Honda Civic
176 Great Deals out of 3,690 listings starting at $1,995
Used Ford Mustang
65 Great Deals out of 1,258 listings starting at $4,995
Used Toyota Camry
48 Great Deals out of 979 listings starting at $2,212
Used Toyota Corolla
122 Great Deals out of 1,994 listings starting at $2,795
Used Ford Escape
131 Great Deals out of 4,598 listings starting at $2,995
Used Ford F-150
321 Great Deals out of 15,103 listings starting at $1,712
Used Honda Accord
43 Great Deals out of 907 listings starting at $1,599
Used Volkswagen Golf GTI
26 Great Deals out of 607 listings starting at $4,900
Used Chevrolet Malibu
54 Great Deals out of 1,151 listings starting at $1,295
Used Hyundai Elantra
161 Great Deals out of 3,498 listings starting at $2,995

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. Content will be removed if CarGurus becomes aware that it violates our policies.