Codes P0300 and p105d, multiple random misfires?

Tiny
JOE93
  • MEMBER
  • 2017 DODGE DURANGO
  • 3.6L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 99,975 MILES
I have dtc p0300 and p105d, the engine misfires terribly when I come to a stop and intermittently when parked. Misfire is only felt for the first 3 gears and shifts roughly, 4th to 8th are smooth. Spark plugs and coil packs have been replaced as well as the VVY solenoid on the left and right side. Fuel pumps were also replaced as well as engine oil cooler filter housing. Oil life is at 75%. Rear drive shaft was replaced.
Wednesday, October 23rd, 2024 AT 1:55 PM

7 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,186 POSTS
So, this code appears when the camshaft actuator needs to be replaced. Does the engine make noise at idle? If so, this can be the problem.

P0300 - Random/Multiple Cylinder Misfire Detected
P105d code: Intake valve stuck in high lift position.

Here are the instructions for changing all 4 of the camshaft actuators out, I would do all of them along with the guides and chain, I believe they come as a kit from Jeep. Check out the images (below). Please upload pictures or videos in your response of any problems so we can see what to help you with.
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Wednesday, October 23rd, 2024 AT 5:14 PM
Tiny
JOE93
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No noise at idle until it starts to misfire, could it be fuel related? Clogged fuel filter or injector.
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Wednesday, October 23rd, 2024 AT 7:54 PM
Tiny
KEN L
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This car does not have a fuel filter, this code is telling you the problem.

P105d code: Intake valve stuck in high lift position.

So, the camshafts are not being activated. You can try whatever you want but this is the problem which caused the code:

P0300 - Random/Multiple Cylinder Misfire Detected

Please let us know what happens.
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Thursday, October 24th, 2024 AT 9:31 AM
Tiny
JOE93
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  • 4 POSTS
I added a little oil and took a 30-minute drive, and the check engine light turned off, it hasn't misfired yet.
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Thursday, October 24th, 2024 AT 10:11 AM
Tiny
KEN L
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Yep, low oil will do it, I would change it and add a heavier weight oil.
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Friday, October 25th, 2024 AT 9:31 AM
Tiny
JOE93
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What would you recommend I used?
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Friday, October 25th, 2024 AT 10:48 AM
Tiny
KEN L
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The 3.6L V6 engine typically uses 5W-20 synthetic motor oil. So I would try 10w-30 weight oil to seem what happens.
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Saturday, October 26th, 2024 AT 9:12 AM

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