2002 Ford F250 Super Duty SuperCab Logo
Posted on Dec 17, 2010
Answered by a Fixya Expert

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My 04 250 diesel will not cold start, it blows black smoke and then dies and I turn it over so much that the batt. dies when I do get it started it spits and sputters while blowing black smoke. Once it it warms up run like its summer time, good spped, take off and good power. Summer and spring two cranks starts rite up. Any ideas

1 Answer

Jason Phillips

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  • Posted on Jan 21, 2011
Jason Phillips
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Fuel injectors or glow plugs

  • Jan Christensen Sep 15, 2014

    miss carrage of to much dirt on the cylinders, clean

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Hi ,, i have a 4 litre mazda t4000 ,, its a horse truck ... it blows a fair bit of black smoke when going up hills and some white smoke when i start it up ... should i worry ... thanks

The black smoke is unburnt diesel fuel- lift your foot. When I was learning to drive diesel trucks (many years ago, in one of these trucks) I was taught that when going up hill under load, I should lift off the accelerator until it just starts to die off, then give it a little bit just to hold revs. No more black smoke.

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I have a 2006 ford F350 that is hard to start in the morning (cold weather) and blows black smoke when it finally starts. The batteries are less than a year old.

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We think it is the diesel injection pump but not sure

Sounds like not all the glow plugs are working.It should run fairly smooth on a cold start if all of the glow plugs are working..Also you shouldn't drive off on a cold start with a diesel,Its really hard on the motors..At least give them 10 to 15 min on a cold start..The oil in them is a really thick oil and when there drove on a cold start theres no oil lubricating the internal parts and will cause the motor to seize up..You may already no this and dont mean you drive it as soon as you start it i just wanted to let you know..When you get alot of white smoke it could be two things,Theres water in the fuel which will make it not have much power die and smoke..But if it runs fine when its warm theres some bad glow plugs...Hope this helps you and have a great day

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_a3369546f8067589

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Do i need to worry if i have a puff of black smoke from the exhaust when i first start my car. its black and only for a minit. also my car always smells hot like oily after even a short journey. would this...

65 thousand isn't much for a diesel engine.
I would not be too worried if it is only when you first start it up.

Diesel smells like oil at the best of times especially when it gets on your hands :) I have an old diesel engine (280,000 km never had the head off ) with no fancy turbo or anything on it. It used to blow a cloud of black smoke when I started it in winter time. It used to crank more before it started when it was cold too. The problem turned out to be 5 out of 6 of my glow plugs were broken. So it was just squirting more and more diesel into the cylinder before it generated enough heat to start. When it finally kicked all the fuel burnt at once hence the black smoke. There is a way to test your glow plugs (assuming you engine has them) with a multi meter. Or just get a mechanic to check and replace them as needed. Mine were about as complicated as changing a spark plug.

This is just my experience. I'm sure there are other reasons your can might be blowing black smoke.

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Pedjero

Welcome to the world of diesels....

Black smoke is produced when too much fuel is injected into the cyl. There could be several issues here, but I would start with running a diagnostic on your O2 sensors and MAS/MAP sensors.

I hope this helps
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