So I've had my truck parked at a friends house this winter cause I cant afford to drive it to college eveyday. So I was over there friday and decided to start the truck. I think 3 weeks before that was the last time I started it. Well it cranked for a second or 2 and fired up but blew black somke out of the exhaust. I know this means its running rich but my question is why? Its never blown black before this. Where do I start with this. Its a 5.9l with 114000 and I know that plenums blown if that has anything to do with it.

I also plan on doing a tune up on it sometime in march when I bring it home. I wanna make sure this is the stuff you guys would recomend running in your truck.

1 HUGHES PLENUM REPAIR KIT
2 DISTRUBUTOR CAP - BRASS TERMINAL FROM WHAT I READ IS RECOMENDED
3 SPARK PLUG WIRES - I'VE READ SO MUCH ON THESE MY MIND IS GONE. ANY ADVISE WHAT WORKS THE BEST WITH ARE TRUCKS?
4 ROTOR- ANY?
5 SPARK PLUGS -STOCK CHAMPIONS?
6 02 SENSORS? - NGK (HOW CAN I TELL IF THE ONES THAT ARE IN IT NOW ARE GOOD OR BAD)
7ANYTHING ELSE?

 

I've seen a lot of engines smoke after being sat up for a while.

After five minutes of running is it still smoking?

Usually its white smoke you see after sitting though (water in exhaust, also marvel oil or the like in combustion chamber)

Black Smoke... strange,but may not be a huge problem.

 

The exhaust cleared up after about a minute and a half of idle.

 

Old gas, or gas sitting in the combustion chamber. Black smoke is fuel related. Usually a rich condition.

O2 sensors don't play a factor on warm up, but if they are old can cause you to run rich or lean all the time.

As you mentioned, a tune up is probably in order as well.

 

Its probably Okay..

As far as what you said above, people have different opinions on what to do.
The Hughes Plenum plate is something everyone here agrees on as being a great idea to install. It will save you time and money in the long run.

As far as spark-plugs many say Champion, I went with NGK plugs and wires.
NGK Coil.

As far as O2 sensors there is a test you can do involving measuring resistance on the sensor while applying heat. I can't remember the exact temps or Ohms you should have, but I remember reading about the test here (years ago, I'll see if I can find it)
So vise, blowtorch/heat gun and Multimeter and you can check your O2 sensors.

I've just used Napa replacements for those, and for my cap.

 

HERE is a really good video for testing O2 sensors.

Basically in a "rich" low oxygen environment you will have higher voltage from the o2 sensor.

It should go up to .9 volts, and drop back down to zero in three seconds.

Anyway this video will help you test O2 sensors, on the car and off the car.

 

Adding the link would be good.

 

ha yeah the link would help but I will search and try and find a vid on it. Thanks for the help. I just wanted to make sure that I shouldnt be to worried about the smoke. Also if I end up replacing the o2 sensors should I replace both or is the front one more important than the back one or vise versa.

 

Oh, oops I thought I did...

http://www.youtube.com/watch?v=vdn4Dk5PSwc

 

yes you SHOULD be worried about black smoke....which indicates unburnt fuel/rich condition.