F 150 2WD Pickup V8-5.4L Prop SOHC VIN Z (1998)
1.
Before beginning any diagnosis, contact the Webasto Tech Hotline at (800) 995-5911 Monday-Friday, 9AM-6PM EST.
2.
Cycle moonroof to open position.
3.
Check for proper drain tube action by pouring approximately 1.8L (6 oz) of water into trough at each side.
4.
If tubes appear to be draining properly, remove the interior A-pillar trim and sun visors. Refer to the appropriate Workshop Manual, Section
501-05.
5.
Pull down the headliner slightly and inspect moonroof drain tubes for kinks and/or twists. The drain tubes must be free from any bends or
obstruction of water flow.
6.
Straighten or cut drain tubes to proper length to allow for free draining.
Grommets Service Procedure
