puffing Black SMOKE on acceleration...diagnosis process wanted

[bamaboy473]

The 2000 Ex with 150K miles an 7.3L had been sitting with almost no fuel for four months before I bought it. On the drive home my bride was following and said that any time I accelerated away from a stop sign, she'd see smoke coming out of the exhaust...she said it was more black than white or blue.

What do you guys see as the list of tests to run? Could it be as simple as old fuel?

[Snake]

Does it have a programmer on it? Bigger injectors?

[Stroken7.3]

Originally Posted by Snake

Does it have a programmer on it? Bigger injectors?

Thats what it sounds like to me. Possible dirty airfilter?

[countryraised]

change all the filters first. plugged air filter will cause smoke. then look to see if it has a chip plugged into the PCM.

[ridiculously_necessary]

also check your turbo boots for cracks and such. as well as up-pipe gaskets.

[dannanw]

Originally Posted by ridiculously_necessary

also check your turbo boots for cracks and such. as well as up-pipe gaskets.

[Strokeorcroak]

ya sounds like a good thing to me, a little black means the diesel is running good hah..

Obviously to much black is straight up annoying, but a little is great!

[03_Turbo7.3]

mine on stock settings blows a little black on accel... usually boost leaks are a cause of this on higher mileage..

like they said check the turbo boots and up pipes..if theres black soot around the up pipes your loosing boost, and check the boots and make sure the clamps are all tight..

check the pcm under drivers side dash and see if theres a programmer in the end of it..

is it slow? or does she get up and go?