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

85,515

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

85,515

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 1,128 nationwide Durango listings starting at $4,890.

Postal Code:

Dodge Durango Experts

  • #1
    Sigurður Guðmundsson
    Reputation
    3,020
  • #2
    Breanskis
    Reputation
    1,780
  • #3
    Matt Judkins
    Reputation
    1,020
View All

Related Models For Sale

Used Jeep Grand Cherokee
76 Great Deals out of 5,198 listings starting at $2,955
Used Chevrolet Tahoe
14 Great Deals out of 877 listings starting at $6,999
Used Dodge Charger
39 Great Deals out of 918 listings starting at $3,900
Used Ford Explorer
21 Great Deals out of 1,793 listings starting at $4,490
Used GMC Yukon
15 Great Deals out of 1,145 listings starting at $3,995
Used Ford F-150
123 Great Deals out of 11,298 listings starting at $369
Used Ford Expedition
17 Great Deals out of 421 listings starting at $2,400
Used Toyota 4Runner
13 Great Deals out of 506 listings starting at $4,500
Used Dodge Ram 1500
24 Great Deals out of 531 listings starting at $2,150
Used Toyota Highlander
16 Great Deals out of 1,161 listings starting at $5,490

Used Cars For Sale

2018 Dodge Durango For Sale
3 Great Deals out of 339 listings starting at $37,995
2017 Dodge Durango For Sale
17 Great Deals out of 486 listings starting at $30,995
2016 Dodge Durango For Sale
55 listings starting at $28,990
2015 Dodge Durango For Sale
66 listings starting at $23,895
2014 Dodge Durango For Sale
51 listings starting at $17,454

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.