P0441 and then P0302 Check Engine Codes

E

eazy

Member
On January 4th, I got a P0441 code, which went away when I refueled. Last night, I got a check engine light again and it started riding rough. Today I had the code checked and it is P0302. They said there were 3 occurrences of that code. It's a 2016 with 24k miles. The Service Departments are closed today. Any idea what I'm looking at and if it's covered under warranty?

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dpetersen1988

dpetersen1988

Member
eazy said:
On January 4th, I got a P0441 code, which went away when I refueled. Last night, I got a check engine light again and it started riding rough. Today I had the code checked and it is P0302. They said there were 3 occurrences of that code. It's a 2016 with 24k miles. The Service Departments are closed today. Any idea what I'm looking at and if it's covered under warranty?

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Check your connections you may have a bad evap canister, also make sure your cap is tight and you dont turn it to many times else it will throw a warning saying cap is loose it did it to me, for the miss fire check the boots and plugs for any damage.
 
jeeeep

jeeeep

Hooked
swap the sparkplug form #2 with any other plug and check the code...do the same with the coil.

If the error follows, you've found the issue.

If you change one plug, change them all.
 
E

eazy

Member
Well, they're tearing it down now. The dealer just called and said it's looking like a rocker or lifter. They're about to do a leak down test and a compression test. They said they've only seen a couple Jeeps with an issue like this under 60k miles in the last 3 years.

I'm wondering if this is the problem:
https://youtu.be/w5GlHp2qlDE

Fast forward to about 3:25 to see the rocker issue.

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E

eazy

Member
They pulled the spark plug and it's got a bunch of burnt oil on it. They said the cylinder head is blown. They did say that this is not the same issue that the 2012-2014 Jeeps had that was covered under an extended 150k warranty.

I don't know much about engine internals... Any idea what this entails? Would this mean repairing one cylinder or replacing the whole block?


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Slimebones

Slimebones

Active Member
eazy said:
They pulled the spark plug and it's got a bunch of burnt oil on it. They said the cylinder head is blown. They did say that this is not the same issue that the 2012-2014 Jeeps had that was covered under an extended 150k warranty.

I don't know much about engine internals... Any idea what this entails? Would this mean repairing one cylinder or replacing the whole block?


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What were the leakdown and compression check results?
 
E

eazy

Member
I believe he said the compression was fine and the leak down did not yield the results they were expecting. He said his tech was on the phone with Jeep for a while trying to diagnose this issue.

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