misfiring 3 ove6cilenders

Asked by Feb 06, 2017 at 09:30 AM about the Ford Explorer

Question type: Maintenance & Repair

Engine missfiering

3 Answers

73,765

Don't know what year but this should cover it. P0300 FORD - Random Misfire Detected...Possible causes; Faulty spark plug (s), Faulty ignition coil (s), Clogged or faulty fuel injector (s), Intake air leak, Fuel injectors harness is open or shorted, Fuel Injectors circuit poor electrical connection, Ignition coils harness is open or shorted, Ignition coils circuit poor electrical connection, Insufficient cylinders compression, Incorrect fuel pressure...The P0300 code means that a cylinder(s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are common caused of multi-cylinder misfiring. If no leak are found the next step is to replace the spark plugs. If the problem persist more tests needs to be done to diagnose problem.

52,065

Year, engine, miles? When were the sparkplugs last changed? If this engine has coil-on plugs, when were they last replaced? Is the check engine lit? What are the trouble codes?

20,160

Six cylinder, ok. Is # 3 cylinder misfiring or 3 cylinders. I've owned 3- 4.0's. Check the net to see how to check the coil (if you have just one) or how to check all six if you have a coil on each plug. If you have one coil with six wire connections check the resistance on each plug wire and see if they are within ford specs. For some reason, if they are out of spec, even slightly the plug will not fire.

Your Answer

Explorer

Looking for a Used Explorer in your area?

CarGurus has 1,446 nationwide Explorer listings starting at $2,800.

Postal Code:

Ford Explorer Experts

  • #1
    OJ
    Reputation
    10,910
  • #2
    Tom Demyan
    Reputation
    4,380
  • #3
    tennisshoes
    Reputation
    2,490
View All

Related Models For Sale

Used Jeep Grand Cherokee
102 Great Deals out of 2,730 listings starting at $1,695
Used Ford Expedition
11 Great Deals out of 338 listings starting at $2,900
Used Chevrolet Tahoe
5 Great Deals out of 720 listings starting at $4,995
Used Ford F-150
474 Great Deals out of 10,063 listings starting at $3,900
Used Ford Edge
134 Great Deals out of 2,319 listings starting at $4,800
Used GMC Acadia
42 Great Deals out of 1,862 listings starting at $4,490
Used Dodge Durango
89 Great Deals out of 1,049 listings starting at $2,998
Used Toyota Highlander
26 Great Deals out of 687 listings starting at $838
Used Ford Escape
197 Great Deals out of 5,575 listings starting at $1,215
Used Honda Pilot
13 Great Deals out of 892 listings starting at $2,950
Used Toyota 4Runner
7 Great Deals out of 457 listings starting at $5,990
Used Chevrolet Traverse
34 Great Deals out of 1,232 listings starting at $4,000
Used Nissan Pathfinder
30 Great Deals out of 703 listings starting at $3,980
Used GMC Yukon
15 Great Deals out of 969 listings starting at $3,000

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.