Does your 7.3L smoke?? - Ford Powerstroke Diesel Forum
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post #1 of 12 Old 04-05-2012, 02:50 PM Thread Starter
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Does your 7.3L smoke??

Just curious if it is just my truck or if most everyone's 7.3L trucks smoke when you start them. I have a 2003, cc 4x4 7.3L 142k miles t, I dont have much done to the truck motor wise other than an edge evolution(always run on tow mode60hp or race at 80hp) a walker btm muffler, hutch and harpoon mod and a s&b cold air intake. I put the programer on the truck last summer and never noticed any smoke when starting in warm weather. Once it started getting colder the truck will smoke white smoke on cold starts. AT 40to60 degress it only smokes for maybe 30sec, between 30 and 40degrees maybe around a min and anything below30 to 0 degrees it will smoke for a couple minunites. If i have drove the truck several hours before starting it will never smoke.

I was never really concerned until i kinda started thinking about buying a new truck. I am the type of person i dont like screwing anyone so just want to make sure this is normal or if there might be a problem. I have not tried starting it back on the stock mode so not sure if that would make a differance. I have never hate any check engine/idle/acceleration or any issues at all in the truck. I run rotella full synthetic and change every 5k miles never low on oil.

I pretty much figured it is just unburnt fuel being burned until the motor is at proper operating temp. Am i correct or should there be a concern???
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post #2 of 12 Old 04-05-2012, 04:53 PM
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The big question is what color is the smoke?

E99 7.3L ECLB 4x4
140,000 miles
4" lift on 33s
6637 Filter
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PHP Phoenix
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post #3 of 12 Old 04-05-2012, 05:18 PM Thread Starter
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smoke looks to be white/grayish in color. I know i am also not running low on antifreeze so i know its not burning that at all.
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post #4 of 12 Old 04-05-2012, 05:25 PM
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Mine does the same thing it only smokes on start up when it's cold for like 10 sec


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Early 99 201,000 miles. Extra spring up front leveled, 4 in turbo back to 6 in tip, 6637, glow shift gauges, dp tuner, kicker speakers, alpine head unit and amp, kicker sub, extang tonneau, bedliner bumpers grill, flares, and rockers, 33in toyo mt, 18in xd monsters, 05 Harley lights, recon tails and line of fire, 20% tint

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post #5 of 12 Old 04-05-2012, 05:28 PM
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Yeah, mine does when its below freezing and clears up after a few seconds.

E99 7.3L ECLB 4x4
140,000 miles
4" lift on 33s
6637 Filter
5" Diamond Eye
PHP Phoenix
Quad Gauge Pod
05-07 Headlights
DDM 55w 10,000K HIDs
Harpooned
800w Pioneer amp and 10" Kicker sub
Avital 5303 Remote Start and Alarm
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post #6 of 12 Old 04-05-2012, 05:40 PM
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my dads did the same thing when it was cold

2001 f250 lariat 7.3 3.73 rear end 4" exaust with muffler-5"tip eagle alloy rims with 305/70 firesteone at, superchips programmer

2002 dodge durango slt+ 4.7v8 flowmaster super 10, intake, ho cams ,superchips programmer, trying to trade it for a diesel
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post #7 of 12 Old 04-05-2012, 05:43 PM
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This is completely normal, dont worry about it.

00' f350 7.3 8" lift 37x13.5x20 toyo mt, xd wheels, 16 chrome shocks all around, air ride, quad pillar gauge, ghost flame paint, PHP chip, DIY Intake, Zoodad mod, foil delete, recon smoked cab lights, recon smoked led third brake light, wicked wheel, nc hornet's ccv mod, riffraff boots, HPX, 4" turbo back 8" miter stack.
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post #8 of 12 Old 04-05-2012, 06:24 PM
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Completely normal if you have a bad glow plug.

I had the exact same thing and found 2 bad glow plugs. Replaced them and not one puff of smoke now!

I was quite suprised at how much easier it starts too!

Lee

2000 F250 PSD SCSB 4X4 418k miles straight pipe gauges 2" leveling kit 315/75r16's
6637 with custom intake pipe. TS Performance 6 position chip!
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post #9 of 12 Old 04-05-2012, 09:02 PM
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Yeaup, Like a Choo Choo



2000 f250 lariat FX4 (BAM BAM)
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post #10 of 12 Old 04-05-2012, 09:12 PM
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I get no smoke on startup even down to 5-10* and not plugged in. I have good glow plugs, harnesses and a stancor relay. Yes the smoke is unburned fuel that your truck "should" be burning if it was functioning properly. My truck has 190k on it with all original injectors. Will it hurt anything if it smokes on startup ? No

2000 f-350 CCSB
Fabtech 10" with ladder bars
dual fox shocks w/Res
20x12 rockstars wrapped with 40x15.50 toyos
04 lariat leather inside
banks cac, big head wg, compressor wheel
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