pony7up

I have a 90 mustang 5.0 and am currently having a oil leak on the right side of the motor by the back of the heads.

When the car is sitting at idle it shows no leaking at all. But if it drive around the block and pop the hood all the oil is on the right side of the transmission and on the back of the head. I have checked the heads and the gaskets are only a week old.
The heads are not leaking nor is the transmission. The valve cover gaskets are not leaking either.

Is there anywhere the oil could be coming from besides the heads ? It's only coming from the right side of the block.

Thanks

2 kwik

right side looking at it?..if not it maybe you pcv valve....you can always put in some leak dye in the oil

turbosha

check real good around the back of the intake, it can puddle up on the back of the block and when you drive it , it will run down the trans.

ACE

how aboot your ERG pipe in the back of the heads? if you just redid the headgaskets then you might have forgot to put them back in and they are leaking.

93 LX FiveO

sounds like intake / rear main seal

stocksuspension

get some brake clean, clean the **** out of it, and put some dye in the oil and the rest is history