[G-Bus]

So here's how it goes. I replaced my power steering pump and since the car was jacked decided to change my oil so I got some 5W40 oil and changed that. When I filled the car back up, I only put 5 Quarts (the big jug) and started the engine to see how much more I needed to add.

So engine runs nice and smooth, tells me oil level is OK so I decide to lower the car down, but I left it running since I wanted the power steering system to fill up with oil as well. The engine ran for 5-10 minutes and it started misfiring and I started hearing a really weird noise, like a screw was moving around in a can. Like something was loose and I got a check engine. Checked the check engine and told me Cyl 6 Misfire... Decided to add another quart of oil, figured maybe it was missing oil but nothing changed.

I brought it to a indy garage but I'm so scared right now, I really have no clue what it could be, has anyone else had something similar happen to them?

Any experts have a clue of what mightve happened?

[AU335i]

wow.... always lower the car before you check the oil level... and I've always used 6 1/2 - 7 qts... 2 quarts short sounds like alot... good luck OP.

[zerep1]

you couldve starved your engine of oil but five quarts is alot i mean its 2 quarts below minimum but should not cause any problems with the car just idling

[GoRomeo]

Originally Posted by zerep1

you couldve starved your engine of oil but five quarts is alot i mean its 2 quarts below minimum but should not cause any problems with the car just idling

I agree. it should not affect the engine to that level. Did you drop something inside the engine block maybe?

Keep us posted

[benzy89]

No smoke/engine didn't freeze you're in "good" shape..... You have any issues w/ misfires before you changed the oil??? Possible you just need new spark plugs/ignition coils on cylinder 6

[Timmayy]

2 quarts low is not good but there's no way it should cause major engine damage.

I've run lesser cars for many miles with the oil level at 50%. I'm sure it shortened the engine's life a bit but it didn't cause catastrophic damage.

[jcarv20s]

The shortage of oil would have thrown an oil light/code instead of a check engine light, no? My guess is you forgot to tighten something...

[G-Bus]

I had some misfires, like last summer and replaced my plugs back then. I dunno if it's the coil or the plug itself. But that sound is just weird... I really don't understand what it could be.

And I do agree that looking back on it, it sounds dumb but I figured the N54 takes 6.5 Quarts so I was down 1.5, and with 1 out its still very safe to drive. I din't even drive tough, the car just sat on idle.

[zerep1]

yeah if it constant misfire it might be the coil-pack or injector sparkplugs have to be in really bad shape to misfire at idle you might also wanna check if some oil might have gotten into spark plug 6 shorting it out cause i imagine the car was at an angle

[Jeff@TopGearSolutions]

Probably has nothing to do with oil but you should start with atleast 6.5 next time. Its unlikely 1.5 low killed the engine at idle.

[BEAR-AvHistory]

Should be no issue with being down a few quarts at idle....name of the game is to keep the oil intake screen covered so the pressure stays up. Not that many places for oil to hide in a 6cyl when a lot of much bigger V8’s are running on only 5 quarts.

[themyst]

Could just be a really odd coincidence that something in your fuel delivery system crapped out.

But if you're hearing noises that's not good. Try and find out where it's coming from. If its coming directly from the engine not good.

[G-Bus]

Its the noise that worries me the most... It doesn't come from the front of the engine, tough maybe timing chain or anything.

[zerep1]

Originally Posted by themyst

Could just be a really odd coincidence that something in your fuel delivery system crapped out.

But if you're hearing noises that's not good. Try and find out where it's coming from. If its coming directly from the engine not good.

What he is hearing is cylc 6 shut down I does sound like metal slapping when it's completely off

[Timmayy]

Those DI injectors are really loud. Makes it tough to hear any other noises over their clatter.

[G-Bus]

Originally Posted by zerep1

What he is hearing is cylc 6 shut down I does sound like metal slapping when it's completely off

Ohh that I didn't know? It's normal for it to sound like that when its not firing?

[themyst]

Originally Posted by zerep1

What he is hearing is cylc 6 shut down I does sound like metal slapping when it's completely off

At idle? The car sounds like it has cams after a misfire event but I don't recall ever hearing anything metallic.

[G-Bus]

Originally Posted by themyst

At idle? The car sounds like it has cams after a misfire event but I don't recall ever hearing anything metallic.

Its not necessarely metallic but it does make a noise I never herd.

[G-Bus]

I feel really stupid right now...

The garage just called me, verdict is that when I removed the charge pipe I broke one of the clips that hold the DVs. The little plastic peice fell and got sucked into the intake and then in cyl number 6. Lucky me it was plastic so it did no damaged. They looked inside the cylinder and saw the peice took it out, cleared the codes and car runs like a champ.

For now they ghetto rigged my DV with sylicone into place so anyone has a stock charge pipe with good clips for sale?!

[skinrock]

I think it's a sign for a cp/bov upgrade