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2017 Pacifica Misfire P0306

30963 Views 78 Replies 43 Participants Last post by  celticcharisma
I have a 2017 Pacifica non hybrid. We've owned it 2.5 years now and have almost 50,000 miles. We love the van, everything about it. The trans does have a hard shift around 5th gear at high rpm and the hood has started bubbling in the usual spot on these. I've been meaning to bring it to the dealer but never had a great excuse until now. The van started running rough while my wife and kids were out. When they got home I noticed the check engine light was on so I was able to pull the code. P0306, misfire cylinder #6. I thought, easy enough, I'll swap plugs in cylinder 4 and 6 and see if the code follows the plug in 6 to 4. I took off the engine cover and was quite surprised to see the intake manifold design was such that this wouldn't be a prudent project for a 20* day in an unheated shop.

Monday morning I dropped the van at the dealer. Told the staff about the misfire, hard shifting, and paint bubbling. There was also 6 open recalls! They told me that there would be $99 diagnostic fee. I thought that was strange as I should be covered for a misfire via the power train warranty but they assured me they'd wave it if so.

I got a call in to them this morning to find out what was going on. The tech told me they'd swapped the plugs around and confirmed the code followed the plug swap and they were sure it was the plugs. I asked how much...$600 and change. No warranty coverage. I couldn't believe it. I asked how much they were charging for plugs. $110. Another $100 for the diagnostic fee. 2.4 hour book charge at $118, and somehow the rest was shop supplies....

So in order to diagnose the plugs they had to perform this teardown twice....for $100. Tear down the intake once to swap plugs, put it back together to confirm the new code was thrown, then tear it down again to swap the plugs back and then put it back together. You can buy the Mopar plugs from Rock Auto for $15/piece.

I'm not really looking for advice or anything, I guess I'm just really annoyed that the plugs didn't make HALF of their service life and the top end is designed in such a way that requires removing the intake manifold to swap plugs that according to Chrysler spec need to be replaced at 100k miles.

I also wanted to make a thread because I haven't seen any out there referring to this issue yet. I feel this is an EXTRAORDINARY expense for the first 2.5 years of ownership and Chrysler should be making some good will gestures here.
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@ChryslerCares I'd like to speak with Chrysler tomorrow some time. Can you recommend a number to call?
@ChryslerCares I'd like to speak with Chrysler tomorrow some time. Can you recommend a number to call?
Hello, please feel free to call 800-247-9753.

Kaitlin
Chrysler Cares
I have a 2017 Pacifica non hybrid. We've owned it 2.5 years now and have almost 50,000 miles. We love the van, everything about it. The trans does have a hard shift around 5th gear at high rpm and the hood has started bubbling in the usual spot on these. I've been meaning to bring it to the dealer but never had a great excuse until now. The van started running rough while my wife and kids were out. When they got home I noticed the check engine light was on so I was able to pull the code. P0306, misfire cylinder #6. I thought, easy enough, I'll swap plugs in cylinder 4 and 6 and see if the code follows the plug in 6 to 4. I took off the engine cover and was quite surprised to see the intake manifold design was such that this wouldn't be a prudent project for a 20* day in an unheated shop.

Monday morning I dropped the van at the dealer. Told the staff about the misfire, hard shifting, and paint bubbling. There was also 6 open recalls! They told me that there would be $99 diagnostic fee. I thought that was strange as I should be covered for a misfire via the power train warranty but they assured me they'd wave it if so.

I got a call in to them this morning to find out what was going on. The tech told me they'd swapped the plugs around and confirmed the code followed the plug swap and they were sure it was the plugs. I asked how much...$600 and change. No warranty coverage. I couldn't believe it. I asked how much they were charging for plugs. $110. Another $100 for the diagnostic fee. 2.4 hour book charge at $118, and somehow the rest was shop supplies....

So in order to diagnose the plugs they had to perform this teardown twice....for $100. Tear down the intake once to swap plugs, put it back together to confirm the new code was thrown, then tear it down again to swap the plugs back and then put it back together. You can buy the Mopar plugs from Rock Auto for $15/piece.

I'm not really looking for advice or anything, I guess I'm just really annoyed that the plugs didn't make HALF of their service life and the top end is designed in such a way that requires removing the intake manifold to swap plugs that according to Chrysler spec need to be replaced at 100k miles.

I also wanted to make a thread because I haven't seen any out there referring to this issue yet. I feel this is an EXTRAORDINARY expense for the first 2.5 years of ownership and Chrysler should be making some good will gestures here.
Hey JFK. Digging up an old thread.

I had the same issue October 2020 and Chrysler replaced the #6 spark plug under warranty. Issue went away. However, just took the 2018 Chrysler Pacifica Touring Plus with 25K miles on it for a 400 mile one-way trip and received the same misfire. Dropped it off at the dealer 400 miles away. They said there is a misfire code (didn't specify the cylinder number). Initially the new rep said the cylinder would have to be replaced. I couldn't imagine someone with reasonable experience could definitively say the cylinder needed to be replaced after an engine cylinder misfire code (maybe there were more codes?). I will need to get more details.

I wanted to ask about your resolution and anything you learned. Did the issue pop up again for you? Were you able to have the warranty cover the repairs?
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They said there is a misfire code (didn't specify the cylinder number). Initially the new rep said the cylinder would have to be replaced
If those were the exact words. you need another technician. A cylinder being replaced means a new engine block.
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If those were the exact words. you need another technician. A cylinder being replaced means a new engine block.
Apologies for hijacking this thread. They have decided to not "replace the cylinder."
Service department determined replacing the #6 cylinder spark plug and coil pack fixes the issue.
Unfortunately, this was the same fix four months and 1,500 miles ago.
Hey JFK. Digging up an old thread.

I had the same issue October 2020 and Chrysler replaced the #6 spark plug under warranty. Issue went away. However, just took the 2018 Chrysler Pacifica Touring Plus with 25K miles on it for a 400 mile one-way trip and received the same misfire. Dropped it off at the dealer 400 miles away. They said there is a misfire code (didn't specify the cylinder number). Initially the new rep said the cylinder would have to be replaced. I couldn't imagine someone with reasonable experience could definitively say the cylinder needed to be replaced after an engine cylinder misfire code (maybe there were more codes?). I will need to get more details.

I wanted to ask about your resolution and anything you learned. Did the issue pop up again for you? Were you able to have the warranty cover the repairs?
I have the P0305 cylinder 5 misfire 2017 Pacifica. Certified mechanic took a bore scope and saw coolant on top of the piston and noticed the cylinder is washed clean. Quoted $1,700 to replace the head gasket. Van has just about 70,000 miles on it. We all thought it strange to have a head gasket fail at that low miles. Mechanic found a significant nick on the top of the engine block. I attached a pic but I'm not sure if that is censored. Engine has never been apart so this can only be from Chrysler. Called Chrysler cares and spoke to Mo (very nice guy). Explained the situation and offered to take it to a dealer if that was necessary. As expected, Mo came back and said it's out of warranty and nothing we can do for you. It's a 2017 with an obvious engine defect from Chrysler and still under warranty year wise. I had other car manufacturers stand behind their issues even though it as just outside the mileage warranty. How can I feel good about buying American when treated like this? I would never treat my customers this way when it's clearly a manufacturing defect, confirmed by the mechanic. Hope this helps others.
Automotive tire Wood Recipe Fender Tints and shades
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I have the P0305 cylinder 5 misfire 2017 Pacifica. Certified mechanic took a bore scope and saw coolant on top of the piston and noticed the cylinder is washed clean. Quoted $1,700 to replace the head gasket. Van has just about 70,000 miles on it. We all thought it strange to have a head gasket fail at that low miles. Mechanic found a significant nick on the top of the engine block. I attached a pic but I'm not sure if that is censored. Engine has never been apart so this can only be from Chrysler. Called Chrysler cares and spoke to Mo (very nice guy). Explained the situation and offered to take it to a dealer if that was necessary. As expected, Mo came back and said it's out of warranty and nothing we can do for you. It's a 2017 with an obvious engine defect from Chrysler and still under warranty year wise. I had other car manufacturers stand behind their issues even though it as just outside the mileage warranty. How can I feel good about buying American when treated like this? I would never treat my customers this way when it's clearly a manufacturing defect, confirmed by the mechanic. Hope this helps others.
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10,000 miles outside the warranty period is not 'Just outside the mileage warranty". That is almost worth another years driving. The issue did not cause any concern for 70,000 miles. Did you notice any coolant loss over time? Did the techs doing your oil changes note coolant in the old oil?
I have the 2017 Pacifica with the same issues here. Check engine light on with misfire codes. Mechanic has changed spark plugs and ignition coil. I am just outside warranty and have had no other issues until now. What were the fixes for this? It is driving me crazy, and we plan on driving it in Oct for vacation. Still paying on our loan. I guess I will not be buying another Chrysler. We put a lot of miles on our cars and usually purchase new after 10 years. I don't think it will make it 10 years from all I see on this forum.
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I have same issue with my 2018 Pacifica with 70K miles. I'm actually surprised there isn't a class action lawsuit based on the number of people reporting the same issue. My old mechanic says he refuses to work on this engine and said it is the worst engine he's ever worked on and recommends everyone get rid of this vehicle. What a terrible black eye for Chrysler. I sure hope Chrysler Cares will do the right thing and stand behind their product. This was my wife's dream car. Seems it may be our nightmare. I really hope @ChrylerCares steps up.
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I have same issue with my 2018 Pacifica with 70K miles. I'm actually surprised there isn't a class action lawsuit based on the number of people reporting the same issue. My old mechanic says he refuses to work on this engine and said it is the worst engine he's ever worked on and recommends everyone get rid of this vehicle. What a terrible black eye for Chrysler. I sure hope Chrysler Cares will do the right thing and stand behind their product. This was my wife's dream car. Seems it may be our nightmare. I really hope @ChrylerCares steps up.
@ChryslerCares, I'd like to speak to you about this.
@ChryslerCares, I'd like to speak to you about this.
Hi johncweymouth1,
If you'd like to send us a PM, we'd be happy to discuss this further with you.

Sarah
Chrysler Cares
I’m having the same issue 2017 80k miles on it (we drive a lot) and just got the call from the mechanic misfire #5 so doing the coil pack and replace spark plugs 🤦‍♀️ 600 bucks to fix. How long did you fix last because it already hard shifts which is also a known issue Chrysler refuses to acknowledge. I’m planning on trading this in I’m over it already and I really loved this van.
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I’m having the same issue 2017 80k miles on it (we drive a lot) and just got the call from the mechanic misfire #5 so doing the coil pack and replace spark plugs 🤦‍♀️ 600 bucks to fix. How long did you fix last because it already hard shifts which is also a known issue Chrysler refuses to acknowledge. I’m planning on trading this in I’m over it already and I really loved this van.
I would be surprised if that fixes it. You need to report a complaint with the NHTSA
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I would be surprised if that fixes it. You need to report a complaint with the NHTSA
Man I swear if it doesn’t I might lose my ish
I would be surprised if that fixes it. You need to report a complaint with the NHTSA
I will be submitting that complaint as well
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I will be submitting that complaint as well
Might have a look through this.

At 70,000 miles Dealer says new engine
Thankfully I’m not at that exact issue…yet. I have definitely seen a trend and this was my first minivan and first Chrysler (I normally don’t go away from Honda or Hyundai honestly-had three cars/suv no problems) this was my hard lesson to stick with what I know and comfy with…screw this van it’s a pos so far
I was searching the forum for this misfire code and found this post. I took my car in on 11/3 for a routine oil change and tune up because I hit 100k miles. I have a 2017 Pacifica and it was working fine before it went to the dealer. It has since been back 3x for the same code. They have swapped engine coils and changed the fuel injector. I just got my car back from the fuel injector and no surprise car starts running rough and sand code p0305. I am calling the dealer back and Chrysler again tomorrow , very frustrated what is going on. The dealership has been awful and they caused this issue!
If I had a misfire code on one particular cylinder first thing I would do is swap the coil pack to a different cylinder. Then check the code again if the misfire moves to the other cylinder then I would replace all of the coil packs and spark plugs. If one is bad how far behind are the others
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