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Intake draws oil into air filter but runs good anyway.

(1990 Jeep Cherokee)
on January 18, 2018
I put new air filter in and a week later the back side is saturated with oil from the tubes.
How long have you had this problem? 2000 miles
Tags: jeep, cherokee
Displaying 1 answer & 3 comments
Popular Answer
on January 19, 2018
1990 - probably has several miles on the vehicle - suspect worn piston rings / cylinder walls resulting in *blow-by* ...

Google > blow-by for more detailed information.
on January 19, 2018

Also make sure the PCV valve system is functional.
on January 19, 2018
Auto zone parts store tells me there is no PCV valve on this unit. A 90 cherokee 4.0 6.
on January 19, 2018
Yep - them **auto repair technicians** they got at AutoZone are really smart for sure!


Hope you get it figured out.


▪️https://youtu.be/ikKN-s9inJ8▪️


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