bcb97

X2! Why mess with something if you aren't for sure what it does? There's a reason for its design, leave it alone.

TwinTurboFx4

Ill email the chief engineer of the f150 on Friday and get the answer. Holes in a muffler don't make sense to me.

kozal01

iTrader: (2)

Whats not to understand? Water from condensation collects in the bottom of the muffler not being able to evacuate with the exhaust gasses so a small hole is put in the muffler to let it out so the muffler does not corrode from the inside.

johnwill

Why?

You asked a good question. You got good answers.

Maybe you just are not able to follow the thinking?

FLA-SVT

Weld up the hole = rotting muffler It's a simple drain hole for condensation Burning a gallon of gas produces a LOT of water....A LOT...

A H2O molecule has two Hydrogen atoms (atomic weight 1) and one oxygen atom (atomic weight of 16 each). Each Hydrogen atom has a weight of 1, and the oxygen atom has a weight of 16, giving each single molecule of H20 an atomic weight of 18 (2 from Hydrogen and 16 from oxygen).

Therefore, to calculate the amount of H2O produced from a gallon of gasoline, the weight of the Hydrogen in the gasoline is multiplied by 18/2 or 9.

Since gasoline is about 87% carbon and 13% hydrogen by weight, the Hydrogen in a gallon of gasoline weighs 0.8 pounds (6.3 lbs. x .13). We can then multiply the weight of the Hydrogen (0.8 pounds) by 9, which equals 7 pounds of H2O or water and water vapor.

dcfluid

Start your cold truck and watch the water come out that hole after a bit. My GM had the same hole.

johnwill

Yes, FLA-SVT, he will understand that even better.

Bob_Mac

ROFLMAO...my thoughts exactly!

djmbs

Why don't they just find a way to route that extra water into the Blinker fluid reservoir..??

Fasttimez

I think while you're welding the condesation drain close on your muffler, you should also block off the condesation drain on your AC system, that way the water will build up an run in your passenger side floorboard instead of on the ground. Then you should reroute your crankcase system so that it vents directly to the atmosphere and drip oil all over the ground also. Then take your coolant vent hose and block it off so that your coolant system maintains max pressure at all times. I'm sorry I'm rambling again.