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Oil change since I have been driving it more than usual, as I havent even bothered to pull the M3 or Z4 out of storage this year.

Looked all over and trying to find the oil leak, from what I can see its not the OFH(have done those before on my M3), looks like its probably the pan :(
Just ordered some dye as I want to make sure before I take on that job :yikes:

Quote:

Originally Posted by PalmSpringsE534.6 (Post 1188798)

Purple...can you point me to anything? I love my X but at the moment, I'm quite unhappy with her. BTW...glad to hear your BlueBox is up and amazing. :)

BlueBox? Everyone with the M62tu had tested new vanos seals new check valves but has not installed a NEW oil filter housing due to the cost...

Sorry the BlueBox reference was for PurpleFade...that's my bad.

Quote:

Originally Posted by Purplecty (Post 1188800)

BlueBox? Everyone with the M62tu had tested new vanos seals new check valves but has not installed a NEW oil filter housing due to the cost...

That's what I'm wondering about. I changed the tensioner as it was prudent but now I'm thinking I have the oil draining down to the sump. That would mean what?

1. Bad check valve in the head
2. Bad/stuck valve in the oil filter housing
3. Bad Vanos seals

Can anyone give me some troubleshooting advice on this one?

My vanos went out but I didn't get the rattle almost everyone gets instead I got the error of sluggish movement in direction of travel showing on the Foxwell and learned you really must use the menu to tell the e53 you're removing and replacing the vanos if you want to cut the chances of a vanos error showing on the new one. (Don't ask [emoji28])

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Quote:

Originally Posted by PalmSpringsE534.6 (Post 1188803)

That's what I'm wondering about. I changed the tensioner as it was prudent but now I'm thinking I have the oil draining down to the sump. That would mean what?

1. Bad check valve in the head

2. Bad/stuck valve in the oil filter housing

3. Bad Vanos seals

Can anyone give me some troubleshooting advice on this one?

Im leaning toward the oil filter housing...

Quote:

Originally Posted by snik (Post 1188768)

Have any of you ever had a wheel bearing go bad? What were your symptoms, how did you narrow down which wheel was the culprit?

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Best laugh I've had in a while.

Eeeeevvveerrryyy body that's driven the same car long enough will experience a bad bearing.

The tricky thing is they can fail so slowly you don't really notice it and then they are so connected to chassis that the sound goes everywhere.

Best way to confirm the corner is to put on the spare on the suspect corner. It will usually nearly eliminate the hum. (it can make it much worse)

One time I switch from 2:55 to 2:45 and discovered I had a bad bearing I wasn’t aware of. That’s how I discovered the method of tracking down a bad bearing

Quote:

Originally Posted by wpoll (Post 1188769)

Scooby-Doo.... Ruh-Ro! ;)

Or more of a ruh-ruh-ruh-ruh actually, that increases in frequency matching your speed.

Hard to track down which it is. Turning sometimes give it away, increasing in volume with increased load.

When you get the classic ruh ruh sound I refer to that as the UFO sound. That sound usually comes fast due to an impact damage like hitting a curb or a big pothole. And much harder sound to track to a corner is when it just starts whirring really loud. If there’s any wearable to the sound at all then you can use vibration isolation to figure out which corner

Quote:

Originally Posted by PalmSpringsE534.6 (Post 1188796)

Well, today I lost my cool with my E53 4.6is. I have been a good parent, provided shelter, food, and toys yet it decided to have a hissy fit with me today. I had my timing guide tensioner changed the other day along with a ton of other work. Well, today the damn chain rattle is back again on a cold start. I'm not seeing any codes for timing advance on BankA or timing retarded on BankA so I'm hoping that my V-guide is ok and hasn't lost its plastic layer. That said, as soon as the oil pressure is up the rattle is gone and stays gone until the next cold start. I hadn't planned on potentially tearing the engine down. Has anyone else had this with their 4.6 and worked it out short of a timing chain service? I'm running synth 5w30 in it but I'm wondering if at 100K miles I should change that up. I would love to hear from some of you all as I really don't want to tear out my engine at the moment.

Replaced doesn’t mean fixed if my car did what you said I would be taking the tensioner outtrying a different one. You have to follow the symptoms regardless of what they are and what parts you’ve changed. fiber optic inspection camera you can go take a look at the chain guide through the oil fill port

Just looked up the rear wheel bearing job on these. Yeah dawg. That's a no for me.

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