Hello, I'm perplexed and would appreciate any advice... I removed the old Bosch fuel filter from the firewall without any problems, now the biggest problem is finding a replacement. I tried three different brands over the weekend and finally picked up the Bosch replacement tonight. Still the same problem, the output side hose fitting from the engine won't thread into the filter, (filter hole is too small). Is there some sort of new fitting required to "step-down" to the smaller filter hole? Thanks for any help, I just dread calling the dealer, but I might have to see what they suggest...