white smoke when warming up - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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#1 (permalink) Old 05-30-2004, 05:12 PM
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alright i have issues with my motor..when i start it up in the morning it smokes white like billows out i can't figure out what it is..i checked all the obvious signs of a BHG and everything looks ok...it also idles at 1500 rpm i tried to adjust the idle and that didn't work..i will do a compression check just wondering if you guys had some ideas
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#2 (permalink) Old 05-30-2004, 06:06 PM
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Yah my 3000gt does that since i took off my cat does it do it when u take off from a light maybe your cat is going bad
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#3 (permalink) Old 05-31-2004, 03:48 AM
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well it also does it when i like rev it hard from idle..but when i am driving as far as i know it's fine...my friend told me he didnt see any smoke when we were drifting the other day
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#4 (permalink) Old 05-31-2004, 08:16 AM
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wqhen waqs the last time you changed your oil? make sure you put the right viscosity in.

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#5 (permalink) Old 05-31-2004, 09:59 AM
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if it's white smoke, cahnces are you have a crack somewhere in the block and that is coolant burning off, do you have to keep filling you coolant?

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#6 (permalink) Old 05-31-2004, 10:29 AM
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If your burning coolant you would definitly be able to smell that in your exhaust and it would continue to come out when your driving. Not just when you first fire it up.

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#7 (permalink) Old 05-31-2004, 01:01 PM
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not nessasarilly, once the block heats up, the crack will close if it is small enough, ive seen it happen before. if it is burning oil, the smoke would be blue

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#8 (permalink) Old 05-31-2004, 03:18 PM
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well the guy changed the radiator and water pump on it,and i think he didn't put enough water in it to begin with so i filled it up again and it's been fine.. i kinda smell a gasy smell in it in the morning...it was low in oil when i got it so i put some more in it...i will change it after i get back from being deployed and see what happens...i hope it's not a crack or blown head gasket...this will make number 3 in a row i've bought with a BHG and noone told me it had a blown head gasket on any of them...uggh my luck
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#9 (permalink) Old 05-31-2004, 08:46 PM
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Sounds just like moistures evaporating out of the exaust system. Is it pretty damp where you live?

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#10 (permalink) Old 06-01-2004, 12:50 AM
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i live in england, it doesn't do that on my friend bimmer so i don't think it's that
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#11 (permalink) Old 06-04-2004, 01:36 AM
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also an update on it, seems like it's getting worse....i tried to smell it to see what it smelled like but it didn't smell like much of anything...why does this always happen when i get the car grrrr...
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#12 (permalink) Old 06-04-2004, 06:32 PM
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Its most likely your rings. Oil is seeping down and when the engine is cold the rings are smaller and oil burns past them. When the engine warms up the rings expand and have a better seal.

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#13 (permalink) Old 06-06-2004, 04:29 PM
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ok i looked in where my coolant goes and it was hella low...i look under the car and there is no cat to be found grrr...
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#14 (permalink) Old 06-08-2004, 06:51 AM
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Unfortunately, it sounds like a head gasket to me. Probably seals itself up when the block heats up.....
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#15 (permalink) Old 06-08-2004, 04:11 PM
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how hard is it to replace...anyone ever done it? How many hours? I have replaced the head gasket on a supra before and i remember it was just alot of hoses and wires to take off
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