Black Smoke
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Tuned
Joined: Oct 2009
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Black Smoke
Howdy!
Hoping you guys can give me some direction!
I have a 2002 Excursion 7.3l. Love the X
I didn't drive her for 2 weeks while I was away (obviously). Started her up a few days ago everything seemed fine. Took off, and I noticed right away when I made a turn onto the main street and gave her a little gas, I saw a lot of black smoke coming out the pipe. I figured hell 2 weeks sitting, she's "cleaning out".
While driving to work, overtime I WOT she would shoot out more black smoke. No biggie I figured, just need to keep giving her time to run again. After work, I gave her a spin on the parkway and really gave it to her Cruised for about 30 minutes, every now and then WOT. I saw some black smoke but it was getting better.
Each day I drove her, and gave her hard accelerations, the smoke got better. Now I'm down to what seems a small amount of black smoke (a puff if you will).
I'm almost sure she never did that before, but then again, I didn't look at my mirror everytime I WOT.
Is this normal? do the 7.3's puff a little black smoke on hard accelerations?
Truck feels fine to me as far as power goes and she does move. I did just replace the air filter and fuel filter thinking maybe it was a fuel or air restriction, but doesn't seem to make a difference.
Looking forward to hearing from you guys!
Thanks
Hoping you guys can give me some direction!
I have a 2002 Excursion 7.3l. Love the X
I didn't drive her for 2 weeks while I was away (obviously). Started her up a few days ago everything seemed fine. Took off, and I noticed right away when I made a turn onto the main street and gave her a little gas, I saw a lot of black smoke coming out the pipe. I figured hell 2 weeks sitting, she's "cleaning out".
While driving to work, overtime I WOT she would shoot out more black smoke. No biggie I figured, just need to keep giving her time to run again. After work, I gave her a spin on the parkway and really gave it to her
Cruised for about 30 minutes, every now and then WOT. I saw some black smoke but it was getting better.Each day I drove her, and gave her hard accelerations, the smoke got better. Now I'm down to what seems a small amount of black smoke (a puff if you will).
I'm almost sure she never did that before, but then again, I didn't look at my mirror everytime I WOT.
Is this normal? do the 7.3's puff a little black smoke on hard accelerations?
Truck feels fine to me as far as power goes and she does move. I did just replace the air filter and fuel filter thinking maybe it was a fuel or air restriction, but doesn't seem to make a difference.
Looking forward to hearing from you guys!
Thanks
Laughing Gas
Joined: Oct 2013
Posts: 861
Likes: 7
From: AZ
My stock 02' 7.3 barely gives any noticeable smoke at all. There has to be a car behind me at night and if I stand on it I might see a tiny puff in his headlights. During the day I can't see anything really.
Logistics Pro
Joined: Oct 2011
Posts: 3,953
Likes: 120
From: Mcdonough, GA
You said it was sitting for 2 weeks. Check your air filter. Make sure something didn't decide that your intake air box would be a good place to make a nest. If your engine can't get enough air it won't be able to burn all the fuel that's injected and the unburnt fuel will come out as black smoke.
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Tuned
Joined: Oct 2009
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Thanks for the responses so far!
I did check out my air box, and it was clean in there and I replaced the air filter already.
Where i Live, critters making homes in engine compartments isn't a "normal" thing
Keep the ideas coming guys
I did check out my air box, and it was clean in there and I replaced the air filter already.
Where i Live, critters making homes in engine compartments isn't a "normal" thing
Keep the ideas coming guys
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