[aj951]

Did you use thread sealant on the sender threads? The sender relies on the connection between the sender body and oil cooler housing for the ground. I have read that you are not supposed to use thread sealant on the thread and to rely on the crush washer to make the seal.

Also in your previous post you stated that the gauge was pegged even after you turned the car off. That sounds like the gauge itself was mechanically stuck and you tapped on it to make it fall back to zero. When you used Clark's procedure for checking the gauge, could you get the needle to stick by going above the resistance level equivalent to 5 bars?

A.J.