Yes
No. The gas and diesel transmissions are not interchangeable.
where can I find the egr valve on a 2001 dodge intrepid 3.5 liter
Yes
As long as they are the same size and all the plumbing and eletrical line up. A 3.3 liter into a 3.3 liter, for example.
The 3.0 liter is not as interchangeable as the 4.0 liter. The 4.0 liter is interchangeable with the a4ld from the bronco 2 2.8 and 2.9's. The 4r55e and 5r55e's also all interchange with minor wiring differences.
10w30
No, they are not interchangeable.
It all depends on what kind of car you have.
There are four.
.050in.
50
The 1995 Dodge Intrepid does not have and ODB2 port, the Intrepids didn't introduce ODB2 until 1996.