Hey fellas, im a cummins man and dont know much about these strokers and today i was behind this excursion not sure what year it was, it seemed to have an auto trans. This thing was smoking non stop and he was driving normally, just wanted to know if there was a problem with it, cus ive never seen a diesel smoke for miles and miles non stop. Thanks fellas

 

Hard to say... Was it white smoke? Whitish?

My wifes 7.3 Excursion you have to work at it to smoke... But a hot crappy tune on a 6.0 will smoke like a freight train.

rig was just crusing?

 

yea, it was just crusing and driving normal, when he would come down a hill and get back on the throttle the smoke was kinda whitish then it would become black like 2 seconds later, ive just never seen a diesel smoke that bad, i was behind him for id say 20 mins and the smoke never stopped inless he was going down a hill and he was off the throttle

 

ya ive been behind a psd and it smoked like that. it was an old guy so there was definently something wrong with it it shouldnt smoke like that. it was black smoke to

 

maybe his turbo wasnt working...at all. If it was constantly smoking he probably had either way too much fuel all the time or no air to match any fuel

 

His turbo was working because when he would come down a hill and get back on the pedal i could hear it spool up, on a powerstroke thats all you hear is the turbo whistle.

 

I dont think that is a correct statement. On the first few models of 6.0s the turbo is all you can hear. I would believe that statement.

 

later 6.0s have a lotta turbo when u go to a 4 in exhaust (even with a muffler) and they whistle like a mad man when u run 5 in stacks

 

it could be normal somewhat if it was cold out and it did it starting up w/ no glow plugs. but it prob wasnt.

but if it happened quite often it could be a head gasket sealing prob or EGR cooler...

 

head gasket or EGR cooler wouldn't make it smoke black. Black is fuel. There was not enough air or too much fuel. I would guess something is/was wrong with it. Rolling that much coal I bet his EGT's were way out of hand.