Guys, I have a spot on the front deck of my rig where the glue has come loose.  It's not that bad right now but I'm afraid it's going to spread across the whole deck.  Is there anyway to fix it short of pulling all the carpet off and re-gluing it?

if its pulled up just clean the old glue of best you can and spread new glue under the loose carpet and lay the carpet back down. find some thing to set on top of the area to press it down pretty solid

If you are looking to fix just that area then you can take a syringe and fill it with glue and poke it through the carpet and then do what Scott suggested with finding something to set on it.

But that is only a temporary fix,   You are going to have to pull the carpet up sooner or later it would probably be in your best interest to remove the carpet and inspect it and either re-glue it or replace it.

Most likely the carpet matting is coming apart and needs to be replaced.