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white smoke again, blown HG's?
i recently did an egr delete with a new oil cooler, coolant flush, cat ELC swap sinister filter, among some other upgrades in my sig.
before these repairs my truck was blowing a lot of white smoke when it was first started, but then it went away 30senconds or so and only blew black if i got on the throttle. after the repairs there was a very small amount of white hazing but i figured it was just the leftover residue in the intake manifold that i was unable to clean out. now it's about two months later and the white smoke is back but only at idle, clears up after 20-30 seconds, it smells like fuel, definitely not coolant, although my coolant level has randomly dropped from the max to min mark 3 times so far. when the truck is up to temp cruising 65 on I-4 my deltas avg. 12, 13, 14. the highest i saw was 17* when i was at 85mph uphill. is my oil cooler clogged again? ![]() i'm thinking that that i blew my HG or that they had been blown before the egr delete, so i'm looking for a shop in central florida to do the work, i just want my truck to be 100%, and i don't have the time or equipment to do it myself. thank god it's tax return time at least. |
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Max coolant level was changed.... the "Min" mark is the new "Max". If you've been topping off after it has dropped, it's probably been bubbling itself out the degas cap to get it where it's supposed to be.
As far as HGs, here is a test that might give you more proof that the HGs are indeed toast: |
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oh ok, well that makes sense, i haven't seen it below min. i will try and do that test also.
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This is what my truck looked like on cold mornings with bad injectors. I don't know if this is what your smoke looks like but you may have a bad or injector or more.
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it is not close to that amount of smoke, but it does smell like diesel. if you are standing up close to the tailpipe you can see it, but if youre more than 20 ft away you can't. it's a light hazing of white.
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how old is ur thermostat? it could be just a problem with warming up. if the motor isnt warm enough, there will be incomplete combustion and u will see white and maybe blueish smoke for a little while. u made it sound like it went away after a certain amount of driving. is that so
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i have no idea how old the thermostat is, ive never replaced it, so i assume it's been there for a while. and yes you're correct, i am only getting the smoke on cold starts and at most is lasts 45 seconds. once the truck is warmed up it runs like a top, no smoke at all unless i get on her, and then it's black.
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If it smells like diesel, you may have some injector issue going on or a weak FICM.
Read the FICM voltage - start w/ a cold engine on a cold morning. Read voltage at KOEO, cranking, and at 2000 rpm. Last edited by bismic; 03-10-2012 at 02:23 AM. |
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bismic are you still on
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ok so my FICM voltage reading was as follows, KOEO 48.5, cranking 48, idle was 48.5, 2000rpm was 48.5. the highest i saw it was 49 around 2500 rpm but only for a second.
ALSO, i just noticed that i have absolutely no heat. my windshield was all fogged up and i had to wipe it off with my shirt because the defroster was blowing cold air. even after driving 20 minutes home from work with the heat on full blast it was still cold air coming out. |
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