Puddle of oil in air filter line and throttle body

1992 OLDSMOBILE CUTLASS
80,000 MILES • 3.1L • 6 CYL • 2WD • AUTOMATIC
Avatar
JTS234
  • MEMBER
  • 10 POSTS
I have the car listed above Cutlass Supreme. It has injector problems at least I think. As I was taking apart the car to get to the injectors I found oil. It wasn’t a little oil it was a lot of oil. It was inside the tube connecting the throttle body and air filter. There was also some inside the throttle body. I cant find a PCV valve. So I’m not sure if I have one or what I should do. Is this even something to be concerned about? Any help would be greatly appreciated thank you in advance.
Mar 10, 2020 at 2:13 PM
Advertisement
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Good evening,

The PCV valve is in the back valve cover. I attached pictures for you.

It may be the valve but I doubt it. I think you have excessive blow-by from worn piston rings that send oil vapors back into the intake system.

Roy
Images (Click to enlarge)
Attached Media
Attached Media
Attached Media
Mar 10, 2020 at 3:07 PM
Avatar
JTS234
  • MEMBER
  • 10 POSTS
If it’s the pistons then I’m assuming that means scrap the car? I’ll look into the PCV valve. Hopefully it’s the PCV but I doubt it myself. Thanks for the help I appreciate it.
Mar 10, 2020 at 3:26 PM
Advertisement
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
You are welcome.

Always glad to help.

Roy
Mar 10, 2020 at 3:28 PM
Avatar
JTS234
  • MEMBER
  • 10 POSTS
I found the PCV it’s completely missing. I think I should buy one and put it in. Thanks again for the help.
Image (Click to enlarge)
Attached Media
Mar 10, 2020 at 4:31 PM
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Okay, install the new one and see what happens.

You are welcome.

Always glad to help.

Roy
Mar 10, 2020 at 4:36 PM
Avatar
JTS234
  • MEMBER
  • 10 POSTS
Apologies I made a mistake. I was rushing and didn’t follow the diagram. Apologies for continuing to message you.
Video (Click to enlarge)
Attached Media
Mar 10, 2020 at 4:38 PM
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
No worries. I knew what you meant.

Roy
Mar 10, 2020 at 4:41 PM