NEED HELP: Smoky Murano - Oil Traces Through the Intake Manifold and Throttle Body!

[Lionheart2]

Hi guys

Really need some help...

Bought a Murano (3.5 AWD) about a month ago.

Noticed it was smoky at start up and also if you hold the accelerator down. WHITE smoke (defo not blue).

It was due a service, so decided to do a full service and also replace the spark plugs and the PVC valve on the rear cover. Also replaced the intake manifold gasket (the main lower one with six holes in a row) and rocker cover gaskets. Do the job properly, basically. All DIY.

My hope was new spark plugs and PVC valve would sort it.

No change. Well, it's a bit perkier, but still smokes.

Now, the interesting bit... The spark plugs were pretty shot - black burning on the tips. Additionally, all up the inside of the intake manifold and even the throttle body had traces of what I assume is burnt oil (amber coloured staining). I assume that's not normal!

The car appears to be using oil also as the level had dropped a fair bit in only 50ish miles since the service.

So, my first question is: any idea of the possible/likely cause?

Thanks guys!!!

[GeoJB]

I'm just a DIY'er my self, seems like blow-by. oil is seeping past the rings. Or, the valve seals are going.
How many miles on the car and what year?
The amber color may be normal. as the recirculation of "gases" (oil from PCV) flow threw the intake system.

I too Picked up on '09 Mo with 84K. doing the plugs this weekend and a complete flushing of the coolant and thermostat.

[Lionheart2]

Hi there

2006, 165,000. Yes, I'm thinking valve seals or piston rings too. Both are engine out jobs :o(

It may end up costing more than the value of the car to fix. Gutted.