Quote Originally Posted by etlsport
man you are one level headed cat to be able to put up with all this and still stay so upbeat.. half of my post would have been $#(@@( ing by now haha..

im not really sure what the problem with the sucking noise could be.. but I just recently started getting a similar sound at idle and while starting off, sounds like theres another giant fan somewhere when i first start the truck and first start to get going, once i get over about 3k rpms i either dont hear it or it goes away.. but usually when i get to a light or stop sign the sound is gone... and i definitely am not feeling a loss in power.. hehe

anyway i started getting that sound after coverting to mobil1 in the oil and putting 1 bottle of seafoam into the gas tank, 1/2 bottle into the oil the crankcase (oil has been changed since and still have the sound) and 1/2 bottle dripped into the intake through the hose coming out of the block about 2-3 inches back on the passenger side.. so i guess what im saying is check those types of areas for a possible cause of the noise
David,
Sorry for the thread jack, but Etl's problem might be the fan clutch.

Now, back to your sucking noise... ,it's possible they didn't connect the elbow between the air box & the fender well properly if they had the air box out when they had it all apart.