Upper intake leaking oil

[Hankster122]

I just bought a 91 gp se 3.1 L. I took it to Midas Muffler to have it checked out and the Mechanic showed me oil leaking around the upper intake. He said since it's such an old car and with 163k on the engine, that if I could live with checking the oil weeking not to do anything because it cost about 700 bucks to have fixed. Is this an easy job or is it that complicated o cost so much? Any help would be greatly apreciated.

Hank

[richtazz]

No oil passes thru the upper intake, so that's a strange place to see oil leaking. Are you sure he wasn't pointing toward the lower intake (the seam between the intake and the cylinder head) or the valve cover? Another common oil leak on 3.1's is the oil pump drive shaft o-ring. It's basically a distributor with the top cut off that goes down in the center of the "V", drivers side, under the throttle body. It's a fairly simple and cheap fix, the 3 required gaskets cost less than $10 total, and it takes about an hour to change.

[Hankster122]

Originally Posted by richtazz

No oil passes thru the upper intake, so that's a strange place to see oil leaking. Are you sure he wasn't pointing toward the lower intake (the seam between the intake and the cylinder head) or the valve cover? Another common oil leak on 3.1's is the oil pump drive shaft o-ring. It's basically a distributor with the top cut off that goes down in the center of the "V", drivers side, under the throttle body. It's a fairly simple and cheap fix, the 3 required gaskets cost less than $10 total, and it takes about an hour to change.

This makes me feel so old, I'm an old, I mean old car, like a 1968 or older amatuer mechanic. These newer cars confound me with there complexity. hahahaha. The oil is on the seem of the plastic cover that says 3.1 L, it that's any help. I need a mechanics manual for this thing!!! hahahaha. Any further help would be greatly appreciated.

Hank

[Hankster122]

Originally Posted by richtazz

No oil passes thru the upper intake, so that's a strange place to see oil leaking. Are you sure he wasn't pointing toward the lower intake (the seam between the intake and the cylinder head) or the valve cover? Another common oil leak on 3.1's is the oil pump drive shaft o-ring. It's basically a distributor with the top cut off that goes down in the center of the "V", drivers side, under the throttle body. It's a fairly simple and cheap fix, the 3 required gaskets cost less than $10 total, and it takes about an hour to change.

This makes me feel so old, I'm an old, I mean old car, like a 1968 or older amatuer mechanic. These newer cars confound me with there complexity. hahahaha. The oil is on the seem of the plastic cover that says 3.1 L, it that's any help. I need a mechanics manual for this thing!!! hahahaha. Any further help would be greatly appreciated.

Hank

[richtazz]

I would say, without being able to see exactly where it's coming from, that you have a leaky valve cover which is allowing oil to get up on the top of the engine.