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Help:Bad smoking and oil on the exhaust

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Old Aug 9, 2023 | 07:44 AM
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Help:Bad smoking and oil on the exhaust

I've been noticing that my brakes had a little shake between 30 and 40 mph when I slow down easily. I figured my rotors may be a little warped or it was time to just get some new pads but before I did I wanted to do some really hard stops to see if it would help.

So last night I drove on a dark deserted road would slowly climb to 60 mph and then cram on the brakes with two feet. I did this three times no tire squeal just slowed down aggressively

On the third time I noticed as I looked in the mirror there was a ton of smoke coming out of the back of the car again no tire squeal

Then I realize the smoke didn't stop as I was driving and I thought maybe my brakes are locked up in the rear but I didn't hear or feel anything odd. And then I could smell an oil smell.

I pulled over into a local gas station and noticed that there was smoke coming out of the driver side exhaust pipes. And if I gave it some throttle the smoke increased pretty badly. I use my finger to wipe the inner part of the exhaust tips and notice that there was an oil residue inside. But only carbon build up on the passenger side

Here is a video after I let it sit overnight and turned it on this morning

https://youtube.com/shorts/ALJciDwX1qk?feature=share

Last edited by 95gsrturbo; Aug 9, 2023 at 07:53 AM.
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Old Aug 9, 2023 | 07:46 AM
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***

Last edited by 95gsrturbo; Aug 9, 2023 at 07:53 AM.
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Old Aug 9, 2023 | 09:41 AM
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Strange it's worse out of 1 pipe. How old is the PCV valve?
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Old Aug 9, 2023 | 11:26 AM
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2015??
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Old Aug 9, 2023 | 11:28 AM
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Originally Posted by skullbox15
Strange it's worse out of 1 pipe. How old is the PCV valve?
I don't know if it's ever been changed. It's a 2015 car with 57k miles

You think PCV can do this ?
Is it safe to drive ?
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Old Aug 9, 2023 | 12:10 PM
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Could definitely be pcv. Did any codes come up? Is the fuel trims abnormal? I would start by pulling the plugs and seeing what they look like. If you have one with oil then you know it's something one cylinder related like a valve seal,head gasket,etc.
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Old Aug 9, 2023 | 12:52 PM
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Originally Posted by deadlyvt
Could definitely be pcv. Did any codes come up? Is the fuel trims abnormal? I would start by pulling the plugs and seeing what they look like. If you have one with oil then you know it's something one cylinder related like a valve seal,head gasket,etc.
No codes sir
Fuel trims ?

No CEL
No rough idle
I'm hoping it's just the PCV 🙏🙏
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Old Aug 9, 2023 | 02:22 PM
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Originally Posted by 95gsrturbo
No codes sir
Fuel trims ?

No CEL
No rough idle
I'm hoping it's just the PCV 🙏🙏
Codes will not always present themselves in these situations.

His advice is sound, also to answer your other question, no I would not drive the car until you can properly diagnose where/what the issue is.

The amount of smoke coming out is extensive enough that you have a consistent issue that isn't something you can "drive around" and not potentially either cause more or even extensive damage in places that are not affected yet.

This may sound odd but is there anything you smell that you can identify?

Normally oil is a bluer tint but you can also sort of smell it as well...

Last edited by GarlicBread; Aug 9, 2023 at 02:24 PM.
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Old Aug 9, 2023 | 02:25 PM
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Originally Posted by GarlicBread
Codes will not always present themselves in these situations.

His advice is sound, also to answer your other question, no I would not drive the car until you can properly diagnose where/what the issue is.

The amount of smoke coming out is extensive enough that you have a consistent issue that isn't something you can "drive around" and not potentially either cause more or even extensive damage in places that are not affected yet.

This may sound odd but is there anything you smell that you can identify?

Normally oil is a bluer tint but you can also sort of smell it as well...
Definitely smells like oil
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Old Aug 9, 2023 | 02:28 PM
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Originally Posted by 95gsrturbo
Definitely smells like oil
If you're not able to really work on the car for whatever reason I'd just get it towed to an MB dealer and pay their $200-300 dollar service diagnostics charge to figure out whats wrong and then you can have them fix it or do it yourself.

Otherwise, start checking your plugs as suggested above and don't drive the car.
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Old Aug 9, 2023 | 04:22 PM
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Originally Posted by GarlicBread
If you're not able to really work on the car for whatever reason I'd just get it towed to an MB dealer and pay their $200-300 dollar service diagnostics charge to figure out whats wrong and then you can have them fix it or do it yourself.

Otherwise, start checking your plugs as suggested above and don't drive the car.
This is exactly what I planned today
Thanks

Gonna pull plugs tonight when I get home and then report back..able to borrow my parents car...
Hard part is I have no extra car lol

Wife needs hers
The NSX has all parts pulled for Rack and pinion and blown shocks and then this

When it rains it pours
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Old Aug 10, 2023 | 02:39 AM
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I had smoking on decel. Sometimes it was a BIG puff/cloud like I did a burnout. It turned out to be my valve stem seals. They noticed when my heads were off getting cleaned and decked during my headbolt job.

Last edited by chrisridebike8; Aug 11, 2023 at 01:26 AM.
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Old Aug 10, 2023 | 11:20 AM
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I'd start by replacing the injectors, plugs and pcv valve. At 57K you're approaching the service for those items.
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Old Aug 10, 2023 | 01:39 PM
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If it gets to a point were something major has to be worked on, take it to them.
https://blueridgemb.com/

Last edited by sventastic82; Aug 11, 2023 at 02:42 PM.
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Old Aug 10, 2023 | 10:07 PM
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Update
Pulled first plug. How does this look to you

At first I thought the stuff on the threads was oil but then I realized it's probably anti-seize
Attached Thumbnails Help:Bad smoking and oil on the exhaust-20230810_220045.jpg   Help:Bad smoking and oil on the exhaust-20230810_220025.jpg   Help:Bad smoking and oil on the exhaust-20230810_220022.jpg  
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Old Aug 11, 2023 | 12:36 AM
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how about the other 3?
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Old Aug 12, 2023 | 06:17 PM
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Originally Posted by roadtalontsi
how about the other 3?
All the same
Thanks for asking


Moving on to PCV next
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Old Aug 12, 2023 | 07:58 PM
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Originally Posted by 95gsrturbo
Update
Pulled first plug. How does this look to you

At first I thought the stuff on the threads was oil but then I realized it's probably anti-seize
there shouldn't be antiseize on the threads anyway, at least from the factory. It's incorrect to install aluminum on aluminum with antiseize because the wet torque is different than the dry torque, wet torque stretches the fastener more to achieve the same fastener friction. It's probably oil.


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Old Aug 14, 2023 | 04:40 AM
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Originally Posted by ChrisHimself
there shouldn't be antiseize on the threads anyway, at least from the factory. It's incorrect to install aluminum on aluminum with antiseize because the wet torque is different than the dry torque, wet torque stretches the fastener more to achieve the same fastener friction. It's probably oil.


Thanks for the comment
It's not oily though. It's thick and sticky on nature. Any other suggestions?
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Old Aug 14, 2023 | 05:21 AM
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Old Aug 14, 2023 | 11:43 AM
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LOL funny
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