Dodge ram 1500 V6 P0304 is misfire on cylinder #3

85

Asked by Feb 22, 2014 at 11:50 AM about the Dodge Ram 1500

Question type: Maintenance & Repair

I'm throwing a P0304 code, which is misfire on cylinder #3, I've swapped out the coil pack with the one from cyl #5 and still get the same code, so it's not the coil pack.  What are the other issues it could be?

7 Answers

285,405

Wiring to the coil or spark plug.

3 people found this helpful.
85

replaced the plug, didn't fix the problem.

1 people found this helpful.
420

I just resolved a similar issue with my 2011 Chrysler Town & Country Limited with the 3.6L Pentastar engine. It turned out to be a known factory defect in one of the heads causing the MISFIRE CYL 2 codes and the flashing CHECK ENGINE light. There is no recall, but when i brought it in, the dealership immediately checked to make sure they had the replacement parts in stock and fixed it free of charge. Apparently, my engine was one of a lot of 7500 produced early in 2011 that had a manufacturing defect in one of the heads (made in Mexico). The problem has been eliminated at the manufacturing plant, but those engines are showing up with the problems after about 40K miles. I was, like I am sure you, hoping for a simple fix I could do myself. It was much more serious than I thought, but there were not than many engines affected (7500 out of 2.1 million made that year). I recommend you take it to your closest Dodge dealership and verify the problem before you damage anything or get stuck somewhere.

85

So I put a new spark plug into cyl 3 and it was still misfiring, turned out it was now cyl 4 misfiring. So I replaced all the plugs and dumped a bottle of fuel injector cleaner in there and no longer have a misfire!

1 people found this helpful.
77,875

Yes, P0304 is the trouble code for a misfire on cylinder #4. P0303 would have been for cylinder #3. HTH. -Jim

2 people found this helpful.
Best Answer Mark helpful

having the same issue with my truck i know this is old but wondering if you remembered what the problem is i think its something with the injector cause it doesnt sound healthy

77,875

Joshua, start a new thread. You'll get much better visibility and more answers that way. -Jim

Your Answer

Ram 1500

Looking for a Used Ram 1500 in your area?

CarGurus has 9,549 nationwide Ram 1500 listings starting at $800.

ZIP:

Dodge Ram 1500 Experts

  • #1
    Dan Connell
    Reputation
    6,930
  • #2
    pudgybear
    Reputation
    6,620
  • #3
    dandyoun
    Reputation
    6,160
View All

Related Models For Sale

Used Ford F-150
2,344 Great Deals out of 215,478 listings starting at $1,300
Used Ram 1500
901 Great Deals out of 119,059 listings starting at $5,995
Used Chevrolet Silverado 1500
1,781 Great Deals out of 149,289 listings starting at $1,495
Used Dodge Ram 2500
147 Great Deals out of 4,934 listings starting at $2,495
Used GMC Sierra 1500
722 Great Deals out of 58,462 listings starting at $1,900
Used Toyota Tundra
478 Great Deals out of 38,526 listings starting at $1,999
Used Toyota Tacoma
439 Great Deals out of 44,078 listings starting at $1,995
Used Dodge Charger
243 Great Deals out of 32,692 listings starting at $1,800
Used Dodge Dakota
68 Great Deals out of 3,085 listings starting at $1,800
Used Ford F-250 Super Duty
374 Great Deals out of 42,218 listings starting at $1,600
Used Dodge Challenger
111 Great Deals out of 25,139 listings starting at $7,995
Used Chevrolet Colorado
295 Great Deals out of 41,685 listings starting at $1,900
Used Nissan Titan
254 Great Deals out of 22,942 listings starting at $1,995
Used Ford Mustang
270 Great Deals out of 37,084 listings starting at $2,150
Used Dodge Ram 3500
74 Great Deals out of 2,162 listings starting at $5,980

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.