Why does my ram 2500 hemi make a loud click when almost at a dead stop when braking? Calipers? Bushings?

SOURCE: blower motor makes loud noise when on high

I have a 2004 dodge ram 1500 with the same problem, vibrating blow fan when on high, pulled the blower fan out and found a piece of the hinge from the recirculation door and felt the recirculation door sitting up on the vent of its hinge. Crappy engineering once again.

SOURCE: what does the code p0300 mean on a 04 dodge ram

http://www.obd-codes.com/p0300

SOURCE: 05 5.7 hemi burning 1 qt every 700 miles

does not sound good. how many miles on engine? knocking may be piston slap if it goes away hot. may be engine replacement time.

Testimonial: "thanks for help "

SOURCE: how tro replace heater core in 2003 dodge Ram PU

dodge want $800 to$1000 for doing this and I can see why.You have to raise or remove the whole dash recover you a/c freon ,disconect your a/c lines and heater hoses remove your heater box and put on a work bench remove the top and remove heater core,now next the last one I did the new heater core will not fit you have to modify the box so your new heater core will fit,put it all back together and fill with coolant and charge a/c, man I got tirered just typing this much less doing it, I hope this helps

SOURCE: 2005 Dodge Ram 5.7L Hemi - dies when stopping

check the idle air and throttle for excessive carbon build up or sticking. this can be cleaned with some throttle body cleaner and a little time, most times. some more information would help. is the engine light on? any major service been done or even minor? number of miles? how long has this happened?