I have a part broke on my 98 ls1 and do not know what it is. It is located behind the intake manifold. Is this the oil sending unit? I heard it was under the manifold this is right behind the manifold. Has oil leaking from it

 

Sounds like it. did you just change your intake?

 

If it stick up from behind the intake and has a connector that plugs in from the top then yes, it's the oil sending unit. When you buy one be sure to get one for a '98. '99 and newer have a different type of wire connector that plugs in.

 

ok, thanks thought so but wanted to make sure. All they have working at the parts store is kids, if the computer doesn't tell them what it is there lost.