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my vents bang while im driving, grr, they change, but it makes a loud banging noise, im sure its the heat vents, because on vent or ac or bilev, no noise, only in heat, or heat/def, then i hit the heater core, and it sometimes goes away, and then comes back after i hit a bump, why? but it not taping, its LOUD, like bang bang bang, in a soft bang.

lol, mine do it too. I just turn the "vent" on and stop caring. If it's making noises that won't lead to me either crashing or swearing (piston slap ^%$^%$) then I can ignore it.

lol, i fixed it, i took out the glove box, and tightened the screws on the vent door acuator motor thingy, and now i never ever hear the banging.

DAM, it came back, it only does it when ur driving, GRR!! But its so LOUD! and u can feel it! pretty dam loud vent. Just wondering, um one of my vents lost a fin, maybe it fell in somewhere.

ok, NOW the vents are starting to get on my nerves does anyone else hear a bang noise when heat button is on or heat def? Grr!! in vent i hear it so sometimes. But i lost 1 fin in 1 vent! could it be somewhere and jammed?