Rottenbind

I've been looking into an oil leak on a 1996 LT1 Corvette and found that it is coming out of the EGR hard pipe that goes I to the exhaust manifold on the right side. Any ideas about what this could mean? There shouldn't be any oil there at all, right?

Thanks,

Ron

Cliff Harris

Are you sure it's oil?

[This is a wild guess on my part]: You might have a ruptured fuel pressure regulator diaphragm that is feeding fuel into the intake manifold where it is then ending up in the EGR passages and flushing out the carbon.

Rottenbind

Interesting theory; I can see what you mean. But the car runs pretty good. If it was a bad fuel regulator, I would expect all sorts of sputtering and carrying on. Anyway, the leak has made an oily mess on the whole side of the engine, so I can confirm that it is oil.