2006 v8 low/ cycling idle

[paweliania]

Ended up doing spark plugs (stock ones from the dealer), and cleaned the MAF and TB again. Helped out the idle a tiny bit.

Finally got the wife to help me out and hold the truck in gear up on the ramps, while I got underneath. I noticed a broken exhaust hanger causing the exhaust to contact the trans mount/ cross member. Weird that it only really happens in gear, or maybe the decreased idle vibrated it just right to feel it in the cabin.

I'm going to have that hanger welded up, and hopefully that cures it!

Did that fix your issue? Im having very similar symptoms also cleaned the TB and replaced the MAF sensor. Going to do the spark plugs next. Truck only does it in gear at a stop light and when its warmed up...