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Maintenance & Repair 350Z up keep and diagnosing/fixing problems

white (slight blueish tint maybe) smoke from exhaust

Old Aug 26, 2012 | 05:26 PM
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Default white (slight blueish tint maybe) smoke from exhaust

I have a 05 g35 5AT coupe with 97XXX km on it. About a couple of months ago I changed the spark plugs and noticed a bit of oil in the back right plug. I took it in afterword to the dealer and told them I'm pretty sure my valves are leaking. They checked it all out an confirmed that was the case. They ended up changing them under my warranty. The said no more leaking is happening and everything seemed fine. A couple of weeks ago I ended up changing my engine oil. Used some mobil 1 5-30 around 4.4 liters changed out the filter with nissans fatory one and everything seemed to be good. Levels were fine no engine light. Drove the car to work a few times everything was good.

Today took the car out and I started smelling a weird smell. I checked the oil levels again and everything was at the normal levels. the color of the oil seems fine like new oil. thought since its white smoke that maybe the head gasket went and im getting coolant mixture. However i did not see any change in the cool or the oil or coolant from the norm. However later on in the day I notice that their is a smell and now a smoke comes out of the exhaust after a WOT. Under normal driving it seems to be fine but if I open it up a bit I can smell the burn off and I can see the smoke coming from the back end, the smoke is not consistent just when you step on the gas. I have no idea what's happening.

Like I stated I drove the car a few times after the initial oil change with no problem and today all of a sudden this started.

i took it to the dealers since its still under warranty.
A few days went by and i got a call from the dealer today and this is the news they had for me. the dealer told me that they would recommend getting a new long block put in. for 14grand
HAHAH the said that the car looks likes its burning oil.

they said the ran the car to monitor it and it seems like its running a bit rich. they did a leak down on all cylinders and the engine passed. they also check all the sensor such as MAF and AF sensor and they are all in perfect working condition.

initially when i talked to them the first day it was there is that they said it seemed like the car was over fuelling from the injectors. and where telling me that i might be getting a bad signal from the ecu for A/F but not they completely changed the problem.

They are indication oil on all spark plugs. I have never had any indications of oil burning and bad consumption before when the car was getting its regular oil changes.

what is weird to me is that they did a comp and leak down test intitally the first day i took it in because i though it was the head gasket. when they thought it was the head gasket and the tech told me it was all great no problems there.

any ideas??
i was thinking about taking for the dealer and taking it to nissan, get them to do their diagnostics independently from infiniti's to see what they say.
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Old Aug 29, 2012 | 08:51 PM
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It's not dumping rich. It would be black smoke for sure. So I'm pretty sure you have a coolant issue. Test your oil maybe.
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Old Sep 7, 2012 | 08:29 PM
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yes im gonna go get that done have a guy that is double checking logs with the uprev tune also
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