Code p000c

[Warpig]

Aloha all,
So I got my Jeep back from the dealership last week. They replaced lifters, rollers, cams, and cam phasers on the left bank for the first time. Drove it for a week and I just started throwing code p000c and code p0300. Tried looking up the p000c but the info seems all over the place. Anybody have any experience and or info with this code?
I have already had the right side replaced twice within the last 240 days.
Any info would be great.
Thanks.

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[garyji]

Right side replaced TWICE??? Brian, you need to either dump that thing or replace the engine. That is just not right.
Sorry, I can't help with the codes.

G.

 

[GATORB8]

I show the P000 series as Camshaft Position Slow Response.

A is Bank 1 Cam 1, B is Bank 1 Cam 2, so I'd assume C is going to be Bank 2 Cam 1

 

[Warpig]

Can’t do it bro. To much time and money invested in her.

 

[alphawolff]

Heh, fortunately for you I've seen this exact issue a handful of times now.

Essentially you've got gunk clogging up your oil passages. You can try driving it hard in a low gear to get the oil hot as hell (240 or so), then performing an oil change. We've had limited success with this, sometimes it works, sometimes it doesn't.

P000C indicates your left bank intake camshaft. If you've had the right bank replaced for this code you've unfortunately wasted your money. Since you've already replaced the left bank intake cam phaser, actuator, and camshaft you're in a tough spot. Do the oil flush procedure I mentioned. If it DOES return, then replace the left cylinder head. If it STILL returns, you need an engine. I've only seen one get to the engine part. This seems to only be an issue on upgraded 3.6L, as the older one doesn't have this issue. This chart should help you and others in the future with cam DTCs.

 

[mwilk012]

Heh, fortunately for you I've seen this exact issue a handful of times now.

Essentially you've got gunk clogging up your oil passages. You can try driving it hard in a low gear to get the oil hot as hell (240 or so), then performing an oil change. We've had limited success with this, sometimes it works, sometimes it doesn't.

P000C indicates your left bank intake camshaft. If you've had the right bank replaced for this code you've unfortunately wasted your money. Since you've already replaced the left bank intake cam phaser, actuator, and camshaft you're in a tough spot. Do the oil flush procedure I mentioned. If it DOES return, then replace the left cylinder head. If it STILL returns, you need an engine. I've only seen one get to the engine part. This seems to only be an issue on upgraded 3.6L, as the older one doesn't have this issue. This chart should help you and others in the future with cam DTCs.

The old ones definitely have this issue. Had a complete nightmare of a Durango a few years back that was losing oil pressure to the left head.

 

[AVGeek99]

I got P000c last March when I was in Moab. Got it into the dealer in Grand Junction. They replaced driver side (left) intake cam, lifters, rockers. I got it in on a Thursday, they just checked sensors and associated wiring and didn't find any issues. They opened it up on Friday morning found worn cam and lifters and failed rocker arms. They had all the parts in stock, replaced them that day and I got it back around 5pm that same day.

When I got it back the CEL was gone and I drove home two days straight to Minneapolis. It ran fine ever since and the code never returned. However, my engine did develop the 'tick' again last fall, though no CEL or error code. Got it into a local dealer in January and the replaced the same lifters, rockers, cam.

The tick is now gone and back to normal, though I'm nervous of another repeat. I'm debating going with a bit higher oil weight or possibly an oil additive.

Since you still have the code, they obviously didn't do enough. Have you checked the oil for metal shavings?

 

[bllprk]

Heh, fortunately for you I've seen this exact issue a handful of times now.

Essentially you've got gunk clogging up your oil passages. You can try driving it hard in a low gear to get the oil hot as hell (240 or so), then performing an oil change. We've had limited success with this, sometimes it works, sometimes it doesn't.

P000C indicates your left bank intake camshaft. If you've had the right bank replaced for this code you've unfortunately wasted your money. Since you've already replaced the left bank intake cam phaser, actuator, and camshaft you're in a tough spot. Do the oil flush procedure I mentioned. If it DOES return, then replace the left cylinder head. If it STILL returns, you need an engine. I've only seen one get to the engine part. This seems to only be an issue on upgraded 3.6L, as the older one doesn't have this issue. This chart should help you and others in the future with cam DTCs.

Please tell me more about this!! I think I have clogging issues that is on/off. I tried a flush, I have tried lower viscosity oil. Thank you! VVL and VVT seem to work perfect, or just slightly off... not far enough off to throw a code.

 

[alphawolff]

Please tell me more about this!! I think I have clogging issues that is on/off. I tried a flush, I have tried lower viscosity oil. Thank you! VVL and VVT seem to work perfect, or just slightly off... not far enough off to throw a code.

The DTC itself is thrown because the VVT solenoid is actuating the phaser and the cam sensor sees it doesn't respond fast enough. The phaser is actuated from oil pressure that runs through the camshaft once the solenoid pin is released.

Anything that interrupts that oil flow will cause the DTC. Unfortunately it's hard to determine *what* oil passage is clogging or why. It could be a manufacturing defect, long oil change intervals, metal build up from rocker arm failure, or something as simple as a poor quality or faulty oil filter. Considering you've got the sensor, actuator, phaser, camshaft, cylinder head, and finally the engine block itself allowing this system to function you have a decent range of failure points.

My recommended diagnosis upon seeing this code is to do the following in order; informing the customer of the entire repair process from the start so they're aware of the potential costs.

1. Get the engine oil hot as hell then change it with a new OEM filter
2. Swap cam sensors between banks to rule out a faulty sensor
3. Replace camshaft, phaser, and actuator. The lifters/rockers are unrelated to this function.
4. Replace the cylinder head
5. Replace the engine

This is listed in cheapest/easiest to most expensive. While the cam sensor swap doesn't cost anything parts wise (unless the code chases), the labor required is significantly more than the oil change. I've encountered this code and the other verities of it about two dozen times or so at this point over the years. Since you say the code comes and goes you can see how it's definitely a partial clog type of thing.

 

[Darwins]

Aloha all,
So I got my Jeep back from the dealership last week. They replaced lifters, rollers, cams, and cam phasers on the left bank for the first time. Drove it for a week and I just started throwing code p000c and code p0300. Tried looking up the p000c but the info seems all over the place. Anybody have any experience and or info with this code?
I have already had the right side replaced twice within the last 240 days.
Any info would be great.
Thanks.

I am happening for exactly the same situation (replace rocker and lift arms and got the P000C) did you find the problem and fix the issue?
Could share the detail with me? I really appreciate your support

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