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


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


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


Looking for a Used Durango in your area?

CarGurus has 24,473 nationwide Durango listings starting at $1,500.


Dodge Durango Experts

  • #1
    Sigurður Guðmundsson
  • #2
  • #3
    Matt Judkins
View All

Related Models For Sale

Used Jeep Grand Cherokee
803 Great Deals out of 73,495 listings starting at $500
Used Chevrolet Tahoe
627 Great Deals out of 37,207 listings starting at $795
Used Ford Explorer
832 Great Deals out of 64,080 listings starting at $2,000
Used Dodge Charger
259 Great Deals out of 32,995 listings starting at $495
Used GMC Yukon
361 Great Deals out of 18,696 listings starting at $2,500
Used Ford Expedition
451 Great Deals out of 20,024 listings starting at $2,500
Used Chevrolet Silverado 1500
2,183 Great Deals out of 150,273 listings starting at $1,499
Used Ford F-150
2,524 Great Deals out of 219,810 listings starting at $1,222
Used Dodge Ram 1500
326 Great Deals out of 9,561 listings starting at $800
Used Toyota 4Runner
299 Great Deals out of 30,520 listings starting at $2,995

Used Cars For Sale

2018 Dodge Durango For Sale
7 Great Deals out of 14,654 listings starting at $23,644
2017 Dodge Durango For Sale
67 Great Deals out of 2,562 listings starting at $22,000
2016 Dodge Durango For Sale
28 Great Deals out of 802 listings starting at $19,991
2015 Dodge Durango For Sale
45 Great Deals out of 1,539 listings starting at $16,800
2014 Dodge Durango For Sale
39 Great Deals out of 1,359 listings starting at $12,990

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.