Oil In Intake Tubing
Posted in Air Intakes System | Asked on Jan 21, 2012
I have oil in my intake tubing going from my cold air intake to the manifold. what could be causing this, what else could be not working properly or need replaced that matches this symptom and how should i go about stopping the leak(the oil coming from the manifold for some reason). its a 1993 dodge stealth ES.
by “from the cold air intake to the manifold” i meant that the oil is coming from the manifold and coating the tubing with oil all the way to my cold air filter.
There are 4 Answers for "Oil In Intake Tubing"
Happens all the time. Make sure all your PCV components are clean or you’ll build up pressure in your crank case blowing the oil out.
Could be blow by caused by worn cylinder rings.
Probably need to replace the PCV valve. On most vehicles this valve keeps the oil “fumes” in the crankcase while the engine cools down. Otherwise it seeps past the valve and cools and condenses and coats the entire inside of the air intake tubing.
The oil is probably coming from the pcv valve hose running into the intake pipe. As the engine is running it creates alot of pressure in the block. The pcv is designed to maitain a certain pressure and bleed off the excess. It does not amount to much oil. This is normal and will not do any damage to the engine. Even a new pcv will pass some oil.