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Did an oil change on my ‘17 Rapide S today and noticed a pool of oil behind the throttle body. I think some oil is normal but this was more than what I noticed last time I did an oil change almost a year ago. Is this considered excessive?
I've been keeping an eye on mine every year. The drivers side is by far the worst of the two and has been increasing over the past 2 years, while the PS side has stayed about the same.
DS - The top air filter is from this year, the bottom one from 2 years ago.
just over 28,500 miles.
I've been keeping an eye on mine every year. The drivers side is by far the worst of the two and has been increasing over the past 2 years, while the PS side has stayed about the same.
DS - The top air filter is from this year, the bottom one from 2 years ago.
just over 28,500 miles.
How do you fix this problem if it continues to get worse?
First, determine if you have excessive consumption. If not, stop here. If you ARE having excessive consumption……catch cans seem to be the go to method.
First, determine if you have excessive consumption. If not, stop here. If you ARE having excessive consumption……catch cans seem to be the go to method.
I don’t have excessive consumption. But the idle is not smooth and there are no warning lights/codes etc. I suspect this might have something to do with PCV valves not functioning properly. Not sure how to check for that without getting to the PCV valves by taking the intakes off.
if you have oil all the way to your air filter than the MAF needs cleaning for sure and maybe that is the reason as to why it doesn't run good at idles. I would check the PCV system, not easy on V12 as V8 but it is the job of the PCV as long as you don't have too much oil in the engine.
Some guys freak out about it and want to run out and install a catch can…..I say a little oil never hurt……Drive on
I agree here. This is precisely the way the crankcase ventilation system is supposed to work in a modern engine that does not breathe into the atmosphere.
You have to be very careful choosing a catch can. Many applications on NA engines are just not thought out well and the addition of a catch can many times alters the function of the PCV system and not in a good way.
Too much oil is collecting. Will eventually cause plug fouling and misfires. Change the PCV valves and at the same time relocate them towards the front if you can so that they can be replaced more easily next time. They are dirt cheap but the labor is a killer. If you relocate them you can replace them once a year. Alternatively, you can install a pair of catch cans where they can be serviced regularly. Frankly, the factory oil separators do a poor job of letting too much oil saturation to occur before sending the vapor on to the PCVs.
