EGR leaking oil?

[tater]

Hello I have a 1989 gmc sierra 1500 with the 4.3
I drove the truck down some dirt roads and never had an oil leak. I went to town the first time and parked the truck and smoke started coming out everywhere I looked under the hood and it looked like it had been sprayed with oil on the passenger side. So I took it home and replace valve cover gaskets and drove it again same thing happens again. Its not a lot of oil bc my truck is still full but it looks like its spraying from somewhere. A lot of oil on the EGR valve could this have oil seeping out some how???
Thanks
Tater

 

[98trck]

are you sure its motor oil, I had a power steering hose with a pin hole in it and it would only spray only during turning the steering wheel left or right I don't remember it took awhile before I figured it out, you could have a hole in the trans lines and it only leaks when the pressure is high enough to pass thru the pin hole, one more possibility a/c lines
PETE