I've had a horrible cabin drone at a stop while the engine is at 600rpm's. Here is exactly what I've done over the course of a year, so someone else can follow my footsteps. All OEM parts.
First I did a tune up on the engine, this included maf cleaning, throttle body cleaning, air filter, fuel filter, spark plugs, inspected coils. Engine needs to be running well, I average 15 to 16 mpgs.
Next I did engine mounts and transmission mount. Pain in the butt.
This weekend I pulled the trailer hitch mount from the back, weighs probably 60 Pounds. This truck is my play truck, if I need to pull I will use my Z71.
After that I put towels on top of the spare and pulled it to the rear as far as I could and tighten.
After that I replaced all the nuts, bolts, gaskets on the exhaust, loosened everything and tighten back to spec from front to back. Also checked gaps of hangers.
After that I placed a after market exhaust dampener on the rear of the muffler. Huge improvement.
Today I added the frame weight thing on the passenger side of truck. This was the final nail in the coffin. I've done multiple runs and it's super quite in the cab, incredible difference.
I basically followed the TSB on exhaust boom, with a few tweaks. By no means is everything I've done necessary. If I were to do everything over again I would start with the frame weight.
First I did a tune up on the engine, this included maf cleaning, throttle body cleaning, air filter, fuel filter, spark plugs, inspected coils. Engine needs to be running well, I average 15 to 16 mpgs.
Next I did engine mounts and transmission mount. Pain in the butt.
This weekend I pulled the trailer hitch mount from the back, weighs probably 60 Pounds. This truck is my play truck, if I need to pull I will use my Z71.
After that I put towels on top of the spare and pulled it to the rear as far as I could and tighten.
After that I replaced all the nuts, bolts, gaskets on the exhaust, loosened everything and tighten back to spec from front to back. Also checked gaps of hangers.
After that I placed a after market exhaust dampener on the rear of the muffler. Huge improvement.
Today I added the frame weight thing on the passenger side of truck. This was the final nail in the coffin. I've done multiple runs and it's super quite in the cab, incredible difference.
I basically followed the TSB on exhaust boom, with a few tweaks. By no means is everything I've done necessary. If I were to do everything over again I would start with the frame weight.