Have you ever done the intake plenum gasket repair?

 

Been there before but i could not find anything using butane. Perhaps a smoke test might be better? I'm really disgusted.
Btw i'm not shouting it's easier for me to read.

 

i'm not using oil and how could that effect just one cylinder?

 

Blown plenum won't be found with an external search, it's an internal leak. Disable the PCV system, and plug the ports. Take the oil fill cap off, and start the engine. Put your hand, or a piece of paper over the fill hole. Is it sucking in? Plenum is blown.

 

my past experience with blown plenum gasket was high oil consumption but the dodge magnum ran fine. I dunno how to disable and plug ports?

 

Find the PCV valve, follow the hose back to the intake. Pull the hose off the nipple on the intake, and plug the nipple. Wrap it with electrical tape, if you don't have anything else, just so long as it can't pull air through there. On the other side of the motor, there will simply be a hose that runs from the valve cover, to the air filter box, or someplace similar. Unplug the hose from the box, and put some tape over the end of it. (the hose side, you don't want the engine to be able to draw air thru there either.) Take off the oil cap, and start the engine. Which way is the breeze going? In, or out?

 

Here is the TSB for the plenum issue. The TSB has the diagnostic step you need to take to determine if the plenum is leaking.
http://dodgeram.info/tsb/2000/09-05-00.htm

 

You may have solved my #5 misfire see tsb 18-48-98 referenced in the tsb you just linked
it involves just re routing spark plug wires
http://dodgeram.info/tsb/1998/18-48-98/18-48-98-v8.htm

 

I finally turned it over to a repair shop. They say its a bad exhaust valve and they see hydrocarbons in the coolant estimated $1700 to replace head gaskets and do valve job on the heads

 

Ouch, that hurts.....