Seems like after a rain, snow, fog, or any type of weather w/ some moisture causes my headliner to "spot", meaning only a couple areas droop down. It is weird, it seems that the spots only have the thin layer of the fabric come down. When I feel it, no wetness. After I start the truck up and drive with the heater on everything tightens back up on the headliner. What gives??

 

hit it with some hairspray

 

The whole thing will drop soon. Mine was the same way.

Andy

 

I replaced mine with fresh headliner material and some 3M spray adhesive ~ $20 for both.

carefully remove, (not breaking plastic trim OR breaking molded foam form)
Place upside down on dining room table (or plywood on saw horses...)
pull off old liner, scrub the degraded foam off the backing / molded form that holds the liner. (Use a very fine wire brush, the kind for scrubbing pots and pans)

Spray the form and the back of new headliner material with the 3M contact adhesive stuff for headliners (moisture resistant...) place material into form, starting for center and working out to avoid bubbles and wrinkles. (extra set of hands help here)

Re- install... I'm waiting till after the rainy season for that, currently 2" of water standing on floor board. (leaking in from somewhere... all 5 of my 1st gens have done this in 100"+/yr rainy climate

 

Hairspray? You have done this yourself? What is the hairspray supposed to do?

 

i just redid mine myself turned out perfect. if you want we can do yours when you come down for the bbq

 

I might just ake you up on that. Still want to know about the effects of hairspray...

 

cool. it cost me 30 $ to do it

 

I got tired of inevitable glue failure and found a better solution.

I ripped five strips of ash on the table saw 1/8 thick, found the correct length with a string to wedge front to back along the roof. then I sanded the strips thinner at each end(taper about 7 inches back) so they would bend nicely to conform to the roofline, and tucked them in place--no more sag! It is a bit tricky to get the right length, and do use ash, it bends very well--sand very thin on the the end that tucks in the back (above the rear window) about four inches in to make the steep bend in that spot. I think they look good, too.