New ice maker valve leaks at outlet

On order # 337833 I purchased part number 67003753 (water valve kit)from you. The new part substitutes a push on fitting for the compression fitting on the outlet side. Following the instructions I cut back the plastic tubing to a point where it is smooth and unblemished. I then seated it into the new style push on water connector and it leaks like a sieve. The tube is now too short to cut back any further.

What can I do to solve this problem?

The following is the full manufacturers information on the refrigerator door:

Amana REFRIGERATOR
Model ARB2517CSR
Serial 10110187EC
Mfg No PARB2517CS1
ICE MAKER KIT IC11B