00 7.3 smoking when cold

[J.R.]

Truck has 110,000 miles, I've had it for around 5000 miles and did my 1st oil change. It was over 1 gal. low, it does smoke when cold but I've never noticed it when driving and watching pass. mirror. Also when at speed and coming off throttle to stop it will "stumble or rough idle" for 2-5 seconds. My 1st diesel so any ideas/advice is appreciated.

[ggossett0002]

i also bought a 2000 7.3 in november. mine will blue smoke when you first start it when its real cold for about 2 min. mine doesnt use oil. i would check your air filter.. if the filter is really dirty the turbo will pull oil and put it into the intercooler. 7.3's arent known to use oil.

[Mack]

They don't like to be cold, if it's cold plug-in your block heater and it shouldn't smoke when you start it in the morning. The times I forget to plug in my block heater (It's on a timer), it will smoke. If it's not up to temp., I wouldn't be stepping on the gas hard, def. not good for the motor.
I think what you talking about as far as letting of the gas and it seems to be stumbling, it's not, the engine brake that gas motors have isn't there with diesels, which causes the motor to almost seem like it shuts off a little when you let off the gas, it's normal.
I've heard the opposite, that diesel's are known to use oil.

Sounds to me besides being a gallon low on oil, it sounds normal.

[jesilvas]

Originally Posted by ggossett0002

i also bought a 2000 7.3 in november. mine will blue smoke when you first start it when its real cold for about 2 min. mine doesnt use oil. i would check your air filter.. if the filter is really dirty the turbo will pull oil and put it into the intercooler. 7.3's arent known to use oil.

It's the crankcase venting into the intake that makes that oil appear in the intercooler. I would do the CCV mod just to keep it clean. If it's still losing oil let us know. There are a few easy things that could be the cause.
Also you should change all your filters to start off with. Or at least check em.
You're gonna love the truck

[Mack]

Originally Posted by jesilvas

It's the crankcase venting into the intake that makes that oil appear in the intercooler. I would do the CCV mod just to keep it clean. If it's still losing oil let us know. There are a few easy things that could be the cause.
Also you should change all your filters to start off with. Or at least check em.
You're gonna love the truck

+1 Hey Jesse how's the 5th wheel working out, I need to do the ccv mod myself.

[jesilvas]

Originally Posted by Mack

+1 Hey Jesse how's the 5th wheel working out, I need to do the ccv mod myself.

idk Haven't tried it yet. Cold, rain. NOT happening. But that's a good mod for sure

[Mack]

& Supposed to be cold & poopy all week too.