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p0302, cylinder 2 misfire.

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#21 ·
Gbawol42 said:
So another update, a good one.

They were about to dive into my engine and the technician noticed the vvt solenoid looked off. Come to find out it was installed wrong, was missing a bolt, and the bolt it did have was to long to seat the solenoid correctly. They put a new solenoid in, correct bolts, and new gaskets as it was leaking and it seemed to fix the issue. So half the cost, but kind of a bummer they didn't find that right away.
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VVT or VVL solenoid was replaced? The oily solenoid you showed in the picture is VVL. VVT solenoids are at the very front of the valve covers as shown in my previous post.
 
#23 ·
Gbawol42 said:
So pulled the plug and it has a little fuel on it but didn't look bad. However this piece in front of the coil packs was covered in oil. I'm not sure what this part is. See pic. View attachment 125415
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Was your issue this one , on the drivers side or was it on passenger side as I am having the same issue and the one on drives side seems to be covered in oil as well, and I can't get a accurate location of cylinder #2 as one person says passenger side and the next says drivers side I have tried coil packs on both
 
#24 · (Edited)
Per FSM
Image



Image


The cylinder block is a 60 degree high-pressure die cast aluminum design with cast iron cylinder liners.
  • The leading side of the block is on the right side and houses cylinders 1, 3 and 5.
  • The cylinder block is an open deck design with cut slots between each cylinder.
  • Two knock sensors are located in the block valley.
  • The cylinder block has three sets of piston cooling jets which are attached to the main oil gallery.
  • The four powdered metal main bearing caps are a cross-bolted design and have directional arrows molded into the caps.
  • The number 2 main bearing is the location for the two piece upper half thrust bearings.
  • The thrust bearings are installed with the oil groves facing outward.
  • The main bearing caps are a six bolt design and cross-bolted for improved lower end strength.
  • There are three oil drain back drillings located on each of the cylinder banks.
 
#25 ·
Gbawol42 said:
So another update, a good one.

They were about to dive into my engine and the technician noticed the vvt solenoid looked off. Come to find out it was installed wrong, was missing a bolt, and the bolt it did have was to long to seat the solenoid correctly. They put a new solenoid in, correct bolts, and new gaskets as it was leaking and it seemed to fix the issue. So half the cost, but kind of a bummer they didn't find that right away.
Click to expand...
No shit !! So all they did was fix the vvt solenoid and it fixed the problem ??? I’m asking cause I’m having the same problem and I’m praying it ain’t anything with cam lobes or lifters ,cause 1500 will kill me right about now
 
#26 ·
fawk said:
No shit !! So all they did was fix the vvt solenoid and it fixed the problem ??? I’m asking cause I’m having the same problem and I’m praying it ain’t anything with cam lobes or lifters ,cause 1500 will kill me right about now
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replaced vvt solenoid on drivers side literally took 5 minutes and it fixed the cylinder 2 misfire however I suggest ordering the solenoid off ebay motors as I found it for $25 when auto zone wants over $100 for it
 
#27 ·
todd3772 said:
replaced vvt solenoid on drivers side literally took 5 minutes and it fixed the cylinder 2 misfire however I suggest ordering the solenoid off ebay motors as I found it for $25 when auto zone wants over $100 for it
Click to expand...
I have a 2017 dodge durango 3.6 l v6
Originally the car would misfire under idle only, this quit on its own and about a week later, it was misfire only when warm or under load (hard acceleration) I replaced coils and spark plugs and it didn't fix the problem , was still tripping code for cylinder #2 misfire I then replaced the vvt solenoid on drivers side as I noticed a small amount of oil laying on top of it, I have not had another issue since and I drive my vehicle over 200 miles a day 😉 I hope this helps before you dump a fortune into rebuilding a motor that don't need it
 
#30 ·
Gbawol42 said:
Well wife said she has a studder upon acceleration. Went and traded her vehicles and kept slowing down and speeding up trying to replicate. Finally got it to studder and engine light went on. Scanned at my local napa and it was P0302. Cylinder 2 misfire. Ugh.

Upon researching here looks like it can be soooooo many things. Spark plug, coil pack, fuel injector, up to internal engine components.

2017, 3.7, with 85k on the odometer.

What would you guys start with? I just don't want to toss money into parts I don't need.
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For future reference for anybody else, I had the same issue and it turned out to be the hydraulic valve servo malfunctioning. I had to argue till I was blue with the mechanics at the dealer to just check it and when they did they said hey. What do you know? That's the problem. I guess you don't need a camshaft.
 
#31 ·
xtremescenes said:
For future reference for anybody else, I had the same issue and it turned out to be the hydraulic valve servo malfunctioning. I had to argue till I was blue with the mechanics at the dealer to just check it and when they did they said hey. What do you know? That's the problem. I guess you don't need a camshaft.
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So the VVL solenoid on bank 2 was faulty (see image in post below)?

If so, there was a vid on youtube (4 vid in this post) where a guy was chasing down a misfire only to discover some debris in the VVL solenoid.

I find it interesting that I had a failed high lift rocker and lobe on one of my intake valves on cylinder #5 (Bank 1 - odd numbered cylinders) and never saw any misfire codes (but there are 2 intake valves per cylinder - 4 valve per cylinder engine). The thing with the VVL solenoid is that by default it is deactivated (intake valve operates in high lift mode) and it is only during cruising and econo driving that it gets activated to low lift mode (see info in this post). So I guess if the solenoid is not operating properly it is possible the fueling will be off which can cause a misfire.
 
#32 ·
todd3772 said:
I have a 2017 dodge durango 3.6 l v6 Originally the car would misfire under idle only, this quit on its own and about a week later, it was misfire only when warm or under load (hard acceleration) I replaced coils and spark plugs and it didn't fix the problem , was still tripping code for cylinder #2 misfire I then replaced the vvt solenoid on drivers side as I noticed a small amount of oil laying on top of it, I have not had another issue since and I drive my vehicle over 200 miles a day 😉 I hope this helps before you dump a fortune into rebuilding a motor that don't need it
Click to expand...
I just bought a 2018 Citadel V6, and have been chasing this same ghost changed everything but the VVT, even the injectors. VVT comes in today and I can finally start enjoying this car.
 
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