7.3 white smoke on every start - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 03-26-2012, 09:37 AM Thread Starter
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Angry 7.3 white smoke on every start

I have an early 99 7.3 psd stage one 160cc injectors and custom tuned sixnpos chip. I just replaced the engine in with a 01 engine I had the white smoking problem before replacement, but I thought it was just the burning oil. Previously I have put on an hoop and new injectors that are still under warranty... When changing engine I changed all injector o rings....it doesn't matter if it's 25 or 75 degrees outside my truck smokes on start up and when you idle or barely going after engine installation it was not using oil or coolant will check oil again but doesn't smell like burning oil smells like raw fuel other than a trashed injector are there any other possible problems I may be having... Any advice would be greatly appeeciated

'99 F250 6-SPEED STRAIGHT PIPE 3.5IN TURBO BACK 5 IN TIP...STAGE 1 160CC CASS INJECTORS WITH TS 6 POS CHIP
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post #2 of 4 Old 03-26-2012, 09:09 PM
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White smoke at startup is usually unburned fuel, maybe you have 1 or 2 glow plugs out, or a loose UVC harness or connectors at the glow plugs. Does it also blow white smoke if you shut it off, then restart it hot (ie, all the cyl's are warmed up, so it fires on all 8 right away)

99 F350 CC DRW 4x4 PSD 6 spd 4:10 Programmed, 4"exh, 8" lift Kelderman 4 link air ride rear, southbend clutch (and arm!) 295/85R22.5's, AFE stgII gauges, push bar, 07 lights, recon smoked fender and rears, ARE shell, DynaTrak combo front,
, Short throw Shifter, Airdog, Regulated Return fuel, Coolant filter, Bypass Oil Filter. Next:BB Turbo, CAC, Injectors, HPOP, Head studs, and anything else I can afford
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post #3 of 4 Old 03-27-2012, 07:11 AM Thread Starter
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Yeah it smokes some even when warm

'99 F250 6-SPEED STRAIGHT PIPE 3.5IN TURBO BACK 5 IN TIP...STAGE 1 160CC CASS INJECTORS WITH TS 6 POS CHIP
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post #4 of 4 Old 03-28-2012, 04:01 PM
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I'm out of ideas, then. last longshot I could think of would be lack of fuel pressure, or low high pressure oil, so you have an injection cycle, but with such poor atomization that it doesn't light the fuel off untill a couple other cyls fire and the rpms come up a bit

99 F350 CC DRW 4x4 PSD 6 spd 4:10 Programmed, 4"exh, 8" lift Kelderman 4 link air ride rear, southbend clutch (and arm!) 295/85R22.5's, AFE stgII gauges, push bar, 07 lights, recon smoked fender and rears, ARE shell, DynaTrak combo front,
, Short throw Shifter, Airdog, Regulated Return fuel, Coolant filter, Bypass Oil Filter. Next:BB Turbo, CAC, Injectors, HPOP, Head studs, and anything else I can afford
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