2005 dodge durango 4.7 with error code P0300

Asked by Mar 30, 2017 at 11:23 AM about the 2005 Dodge Durango SLT 4WD

Question type: Maintenance & Repair

i have a 2005 dodge durango with the 4.7 engine and my wife got gas about two weeks ago and before she was able to get out of the gas station the car started to idle rough and hesitate to go and shaking, so far i have check the fuel pressure it was good and check a sample of the fuel and that looked good and change the spake plugs and check after that for spark and all good and i also have a check engine light on with error code P0300 multi miss fire and sounds like its hissing like its got a hole some where has any one had this issue before and how did you correct it

3 Answers

78,045

Sounds like the biggest thing is a vacuum leak. Need to find that vacuum leak. Here is what the po300 is... P0300 DODGE - Cylinder Misfire Fault Detected Random Cylinders...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.

what the best way to find a vacuum leak

78,045

By spraying carburetor cleaner along the intake manifold gasket, and anywhere there is vacuum. You would notice a difference in the rpm of the engine as the vacuum where a leak is will suck in the carb cleaner and burn up in the cylinders, like adding more fuel to the cylinders.

Your Answer

Durango

Looking for a Used Durango in your area?

CarGurus has 23,734 nationwide Durango listings starting at $1,500.

ZIP:

Dodge Durango Experts

  • #1
    Sigurður Guðmundsson
    Reputation
    2,820
  • #2
    Breanskis
    Reputation
    1,700
  • #3
    Matt Judkins
    Reputation
    920
View All

Related Models For Sale

Used Jeep Grand Cherokee
930 Great Deals out of 67,557 listings starting at $950
Used Chevrolet Tahoe
885 Great Deals out of 39,486 listings starting at $1,799
Used Ford Explorer
1,166 Great Deals out of 64,666 listings starting at $1,200
Used Dodge Charger
428 Great Deals out of 35,049 listings starting at $2,000
Used GMC Yukon
565 Great Deals out of 18,727 listings starting at $2,000
Used Ford F-150
3,205 Great Deals out of 226,281 listings starting at $1,250
Used Ford Expedition
461 Great Deals out of 18,018 listings starting at $2,498
Used Toyota 4Runner
296 Great Deals out of 27,600 listings starting at $1,900
Used Dodge Ram 1500
373 Great Deals out of 11,017 listings starting at $1,699
Used Chevrolet Silverado 1500
2,924 Great Deals out of 161,754 listings starting at $1,295
Used Honda Pilot
672 Great Deals out of 36,158 listings starting at $1,750

Used Cars For Sale

2018 Dodge Durango For Sale
11,753 listings starting at $26,459
2017 Dodge Durango For Sale
66 Great Deals out of 3,009 listings starting at $23,900
2016 Dodge Durango For Sale
49 Great Deals out of 982 listings starting at $20,991
2015 Dodge Durango For Sale
47 Great Deals out of 1,411 listings starting at $16,983
2014 Dodge Durango For Sale
72 Great Deals out of 1,710 listings starting at $13,800

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.