White Smoke problems!!! - Ford Powerstroke Diesel Forum
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post #1 of 15 Old 05-28-2010, 09:46 PM Thread Starter
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White Smoke problems!!!

Hey guys, this has prob. already been addressed, but I can't find it... Yesterday I noticed my rig starting to put out white smoke when i came to a stop. Today it has gotten pretty bad. Every time I come to a stop, it really puts out a cloud of it. Has never done it before, any thoughts as to what may be causing this?
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post #2 of 15 Old 05-29-2010, 07:22 AM
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white smoke at a stop at idle?

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post #3 of 15 Old 05-29-2010, 10:56 AM Thread Starter
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yeah normally after coming to a stop from driving
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post #4 of 15 Old 05-29-2010, 02:15 PM
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Water in the cylinder? Like a leak in the head gasket?
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post #5 of 15 Old 05-29-2010, 07:41 PM Thread Starter
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Don't know? reading other posts it seems to have the same symptoms of a bad ERG... whatever that is.
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post #6 of 15 Old 05-29-2010, 07:44 PM
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EGR is the acronym you are looking for, not really that but the cooler. This is very likely if it is only at idle. Also, you would be slowly losing coolant, check the level in the degas/overflow bottle. However if the truck stumbles or misses at all during idle, that can be raw fuel (injected during exhaust stroke or just not firing in one cylinder).
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post #7 of 15 Old 05-29-2010, 08:14 PM Thread Starter
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Its not stumbling or missing at all at idle. It looks as though the coolant is lower, but will check for sure in the AM. But yeah, it doesn't put the smoke out during running, only when I come to a stop, or slowing down. Seems like when the rpm's die down when slowing to turn.
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post #8 of 15 Old 05-29-2010, 08:17 PM
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The cooler is most likely leaking then. This is because the EGR valve closes at anything other than idle.
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post #9 of 15 Old 05-29-2010, 08:34 PM Thread Starter
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So on a regular vehicle, is this basically the thermostat?
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post #10 of 15 Old 05-29-2010, 08:37 PM
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Nope, the computer closes the egr valve when you start on the throttle so you aren't super heating the coolant. The egr valve is designed to reduce idle emissions only.
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