Type: Posts; User: mikem3815
got from tech support a while ago. Has helped me a time or two.
sorry forgot the link http//www.mylinkdrive.com
I got this from Mitsubihi tech support. It doesn't have the PK18E but it does have a PK18FK3 listed in the service manual area with your problem. This site has helped me several times.
Finding is the first part of fixing
The only thing I EVER use to fix a leak is my leak detector