3.4 dohc oil cooler questions

[dohcfiend]

i am prepping this 93 and i believe it has an oil cooler. kind of odd for a auto car i think.

anyway when i was prepping on the top, i noticed a 5/8 coolant line going downward from the waterpump.

later when i was prepping underneath i noticed it plugged into what looked like under the grease an aluminum box that the oil filter was screwed into. it also had another port on itand another 5/8 coolant has attached but i didn't track it down, i was preoccupied with tracking and removing that PITA tranny bracket and freeing the entire exhaust after i rounded a bolt where the down pipe connects to the rest of the exhaust.

so is this the infamous lq1 oil cooler?

i will give cudos b/c the diameter of the lines are large but i don't like that fact that it does not have a standalone setup like most oil coolers and depends on the rad.

do these thing ever fail and coolant and oil mix?

[Scott205]

Oil Cooler

Well, I know there is an Oil Cooler on my 1992 Olds Cutlass Supreme SL with the 4T60-E auto. It also has a transmission cooler. I haven't ever seen one leak coolant into the oil.. usually a head gasket (sounds familiar, oh wait that is what i am doing now) but they have been known to leak oil pretty badly.. see my car again! Worse I don't know how well that actually cool, but I am guessing just enough to keep everything from melting in the Hot Texas Heat!

[93Oldsdroptop]

RE: Oil Cooler

Curiously, my wife's 92 Lumina LQ-1 has one on it but my 93 Cutty ragtop doesn't. I had to take hers off because it developed a bad leak, it was a pain in the ass to fix. Also if you replace the starter it must be removed. Don't see how it could leak into the coolant however. Hers just leaked oil all over the driveway and such. My Olds has the tap holes, but they are plugged-thankfully.