WHITE SMOKE/SWEET SMELL/ROUGH IDLE....PLEASE HELP. - Ford Powerstroke Diesel Forum
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Old 09-17-2013, 12:01 PM
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WHITE SMOKE/SWEET SMELL/ROUGH IDLE....PLEASE HELP.

Hey Guys, i'd really appreciate some assistance here, its starting to get a little colder outseide and i notice ol' girl (7.3 f250 auto trans) is getting a little rough on me, heres what i got, the truck has one of them older knob chips with 4 settings stock, economic, tow, and performance.

Cold starts blow white smoke out, very sweet, and the idle seems rough (only during the first minute) im thinking glow plugs might be part of it.

i recently flushed the radiator due to some grease like stuff in it, it wasn't diesel and it did not look or smell like oil at all, honestly ive never seen this it was like someone poured a tube of grease in the cooling system the reservoir walls were black from this stuff and lots of shunks came out.

now once ol' girl warms up she runs like a champ, but that first minute is rough, also i left it on stock last night and when i went to start it it took like 4 times for it to start. where if it is on performance she'll start up right away.

also my trans temp gauge hasnt been reading for a while now, stupid question but how do i check to make sure its the gauge thats wrong???

Thanks folks!

Last edited by Usmcmudslinger; 09-17-2013 at 12:16 PM.
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Old 09-17-2013, 12:47 PM
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how's your coolant level? kidna sounds like youre burning coolant. im having the same issue and im down to egr cooler or HG... good luck!
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Old 09-17-2013, 02:30 PM
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I was thinking that however i drained the coolant and filled it with water (just a crazy thought) still does it :/......thanks man you too
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Old 09-25-2013, 11:50 AM
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If u can get s compression test done that would help. Mine was badly steaming/smoking and have had it parked.

God knows where...
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Old 09-25-2013, 06:35 PM
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Mudslinger, how many miles? Sounds like you could have leaking o rings and / or leaking injector cups. You need to keep track of your coolant level, to see if your loosing it . What does your fuel filter look like ? Black? You need to pull your glow plugs and do a compression test. Sounds like you have a few issues causing your problem , I.m thinking high mileage , and the need for maintenance. Block and radiator flush after you sort it all out .
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Old 09-25-2013, 06:38 PM
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Drnivinidaho, sounds like you might be having a problem with HG. What is the difference in you engine oil temp and your coolant temp. , should be no more than 15 degrees F
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Old 09-25-2013, 08:01 PM
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Pulled egr cooler and it poured out coolant like crazy. Temps I think are from oil cooler. anywhere from 15-way to freaking hot

God knows where...
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Old 09-25-2013, 09:50 PM
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Quote:
Originally Posted by Usmcmudslinger View Post
Hey Guys, i'd really appreciate some assistance here, its starting to get a little colder outseide and i notice ol' girl (7.3 f250 auto trans) is getting a little rough on me, heres what i got, the truck has one of them older knob chips with 4 settings stock, economic, tow, and performance.

Cold starts blow white smoke out, very sweet, and the idle seems rough (only during the first minute) im thinking glow plugs might be part of it.

i recently flushed the radiator due to some grease like stuff in it, it wasn't diesel and it did not look or smell like oil at all, honestly ive never seen this it was like someone poured a tube of grease in the cooling system the reservoir walls were black from this stuff and lots of shunks came out.

now once ol' girl warms up she runs like a champ, but that first minute is rough, also i left it on stock last night and when i went to start it it took like 4 times for it to start. where if it is on performance she'll start up right away.

also my trans temp gauge hasnt been reading for a while now, stupid question but how do i check to make sure its the gauge thats wrong???

Thanks folks!
More than likely your injector cups are leaking by. Also, it would be a good idea to tune up your glow plug system if its still original as far as you know.
Some time ago it was figured out that if the wrong type of coolant was used after a flush it was detrimental to the retaining compound on the OEM injector cups and they would loose their seal. If you have had a rebuild or reman engine then the retaining compound was updated.

You starting issue may be your CPS, IPR, getting weak. When you put it in tune 4 and it does start easier, I'm going to assume that the tune is calling for more pressure from your HPOP.

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Old 09-26-2013, 06:37 PM
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I usually give the "gas pedal" a little push when starting. It helps it start faster.
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