STC Maybe?
OK, so I performed a couple of tests and the truck passed all of them. The degas bottle has no white residue, the inside of the degas bottle does not look extra clean like it was steam bathed, and I parked the truck on an incline overnight and checked the egr valve this morning. No coolant at all on the valve or in the cooler.
Is there another way to check the egr cooler for failure or could the white smoke be due to something else? Could the white smoke be from the STC going bad? I would like to make sure I am replacing the correct part.
Is there another way to check the egr cooler for failure or could the white smoke be due to something else? Could the white smoke be from the STC going bad? I would like to make sure I am replacing the correct part.
OK. The last two days for work I have had ~4 hr stints where I'm either idling or very slowly moving. After that when I go back to normal driving I have a considerable amount of white smoke blowing out of the exhaust for about 3-4 minutes. I know, I know, you're not suppose to idle these trucks. I normally dont but the last two days was an exception for work and won't happen again in the future.
OK, so I performed a couple of tests and the truck passed all of them. The degas bottle has no white residue, the inside of the degas bottle does not look extra clean like it was steam bathed, and I parked the truck on an incline overnight and checked the egr valve this morning. No coolant at all on the valve or in the cooler.
Is there another way to check the egr cooler for failure or could the white smoke be due to something else? Could the white smoke be from the STC going bad? I would like to make sure I am replacing the correct part.
Is there another way to check the egr cooler for failure or could the white smoke be due to something else? Could the white smoke be from the STC going bad? I would like to make sure I am replacing the correct part.
No more test that i know of. My buddies truck was smoking like that and come to find out he had a head gasket leaking. He was experiencing "severe" white smoke and of course the tell, tell sign running hot. I would keep watch on the temp to make sure its not running over half way.
You could drain some of the coolant from the driver side (radiator plug) catch it in a clear type bucket and take a look at it to see if there is any better signs of oil in it. This doesn't sound like a oil cooler from our experience.
Does it smoke just at cold starts?
You could drain some of the coolant from the driver side (radiator plug) catch it in a clear type bucket and take a look at it to see if there is any better signs of oil in it. This doesn't sound like a oil cooler from our experience.
Does it smoke just at cold starts?
No more test that i know of. My buddies truck was smoking like that and come to find out he had a head gasket leaking. He was experiencing "severe" white smoke and of course the tell, tell sign running hot. I would keep watch on the temp to make sure its not running over half way.
You could drain some of the coolant from the driver side (radiator plug) catch it in a clear type bucket and take a look at it to see if there is any better signs of oil in it. This doesn't sound like a oil cooler from our experience.
Does it smoke just at cold starts?
You could drain some of the coolant from the driver side (radiator plug) catch it in a clear type bucket and take a look at it to see if there is any better signs of oil in it. This doesn't sound like a oil cooler from our experience.
Does it smoke just at cold starts?
Usually "blue smoke" is raw fuel but normally not really noticeable except when temps are falling or at start up. I had this happen to me and my FICM was going out. Mine would pour "blue" smoke out and smell like raw fuel for 3-4 miles.
And you did say it was "white" smoke correct?
This sounds like coolant burning off through the exhaust which is signs of the EGR cooler but you didn't see coolant in the EGR valve housing. When you pulled the EGR valve was it gunked up? One more thing to look for and its a little difficult to notice but pull the oil stick and see if it looks like any coolant maybe mixing with your oil. Ususally when the EGR cooler goes out you will get water in your oil along with white smoke, when was your last oil change? Just wondering if it looked milky? A small leak on the EGR is kind of hard to notice until the thing finally kicks the bucket.
Oil Cooler is oil in the degas! Sounds like you are ok there.
Just a small tip if you start noticing the white smoke severely I would pull over and tow it back home rather than taking a chance. If you are driving and it goes out and you don't notice it you "could" blow the head gaskets really fast without knowing. Just keep caution in your passengers mirror and your temp gauge.
Again though it could be early signs of head gaskets OR EGR cooler. IMOP one of the two are leaking some what.
And you did say it was "white" smoke correct?
This sounds like coolant burning off through the exhaust which is signs of the EGR cooler but you didn't see coolant in the EGR valve housing. When you pulled the EGR valve was it gunked up? One more thing to look for and its a little difficult to notice but pull the oil stick and see if it looks like any coolant maybe mixing with your oil. Ususally when the EGR cooler goes out you will get water in your oil along with white smoke, when was your last oil change? Just wondering if it looked milky? A small leak on the EGR is kind of hard to notice until the thing finally kicks the bucket.
Oil Cooler is oil in the degas! Sounds like you are ok there.
Just a small tip if you start noticing the white smoke severely I would pull over and tow it back home rather than taking a chance. If you are driving and it goes out and you don't notice it you "could" blow the head gaskets really fast without knowing. Just keep caution in your passengers mirror and your temp gauge.
Again though it could be early signs of head gaskets OR EGR cooler. IMOP one of the two are leaking some what.
Usually "blue smoke" is raw fuel but normally not really noticeable except when temps are falling or at start up. I had this happen to me and my FICM was going out. Mine would pour "blue" smoke out and smell like raw fuel for 3-4 miles.
And you did say it was "white" smoke correct?
This sounds like coolant burning off through the exhaust which is signs of the EGR cooler but you didn't see coolant in the EGR valve housing. When you pulled the EGR valve was it gunked up? One more thing to look for and its a little difficult to notice but pull the oil stick and see if it looks like any coolant maybe mixing with your oil. Ususally when the EGR cooler goes out you will get water in your oil along with white smoke, when was your last oil change? Just wondering if it looked milky? A small leak on the EGR is kind of hard to notice until the thing finally kicks the bucket.
Oil Cooler is oil in the degas! Sounds like you are ok there.
Just a small tip if you start noticing the white smoke severely I would pull over and tow it back home rather than taking a chance. If you are driving and it goes out and you don't notice it you "could" blow the head gaskets really fast without knowing. Just keep caution in your passengers mirror and your temp gauge.
Again though it could be early signs of head gaskets OR EGR cooler. IMOP one of the two are leaking some what.
And you did say it was "white" smoke correct?
This sounds like coolant burning off through the exhaust which is signs of the EGR cooler but you didn't see coolant in the EGR valve housing. When you pulled the EGR valve was it gunked up? One more thing to look for and its a little difficult to notice but pull the oil stick and see if it looks like any coolant maybe mixing with your oil. Ususally when the EGR cooler goes out you will get water in your oil along with white smoke, when was your last oil change? Just wondering if it looked milky? A small leak on the EGR is kind of hard to notice until the thing finally kicks the bucket.
Oil Cooler is oil in the degas! Sounds like you are ok there.
Just a small tip if you start noticing the white smoke severely I would pull over and tow it back home rather than taking a chance. If you are driving and it goes out and you don't notice it you "could" blow the head gaskets really fast without knowing. Just keep caution in your passengers mirror and your temp gauge.
Again though it could be early signs of head gaskets OR EGR cooler. IMOP one of the two are leaking some what.
I have a scangauge 2 on the way from Autozone. I will post my EOT vs. ECT and all codes if any.
Thanks for all your help
I was just reading a little on the FICM. I read that a sign of a bad FICM was rough running on a cold start. Well, since it's gotten down to the high 20s low 30s for lows overnight around here my truck runs a little rough right at startup first thing in the morning. Maybe the smoke is coming from the FICM? I'll check it's voltage this weekend.
I replaced mine about 10 months ago. It got cold in the 30s-40's here and I started having white smoke. We drove the truck to TN where it got in the teens. I started having trouble with mine not wanting to crank. It would buck/jerk/skip etc.... it got so bad smoking it looked like i was spraying fog out the exhaust. My smoke again though was heavy blue colored and smelt heavily of diesel. I replaced mine and now the truck fires up as if you have just gotten out of it warm.
Yes the voltage check is a good idea just to rule that out. I got the 58volt hot flash from Swamps and it drove like a new truck. I have two buddies that have the 6.0 and theirs are running rough at cold crank.....bucking about 50-55 mph until warmed up.
As for the white smoke issue though with the coolant being a little low I would keep a close eye on it.
Yes the voltage check is a good idea just to rule that out. I got the 58volt hot flash from Swamps and it drove like a new truck. I have two buddies that have the 6.0 and theirs are running rough at cold crank.....bucking about 50-55 mph until warmed up.
As for the white smoke issue though with the coolant being a little low I would keep a close eye on it.
Crack your window about half way before turning the key over, listen carefully and see if you hear the injectors making noise. I totally over looked this when my FICM was showing out. Mine was silent, i would turn the key over and you wouldn't hear anything coming from under the hood. I had to actually plug my truck in overnight to get it to fire the next morning there at the end of my FICM.....R.I.P.!! They make a ticka, ticka, ticka noise....sorry bad example but you should hear them right before the wait to crank light goes off.
I know yours can't be that bad yet, mine was toast!
I know yours can't be that bad yet, mine was toast!







