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Old Jan 29, 2011 | 04:24 PM
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Jayme Duty's Avatar
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blue smoke

I'm starting to get lots of blue smoke on cold starts. Its not really even cold about 40 and has been plugged in. What does this mean??
 
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Old Jan 29, 2011 | 04:46 PM
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From: Buckley, WA
Blue means oil burning, how long does the blue smoke last
 
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Old Jan 29, 2011 | 04:55 PM
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Could be just a dirty CDR.

Remove it and to clean it, let it soak in gasoline for a couple hours, and onces in a while during that time, take it out, shake it well, and drop it back in. Do this a good couple of times.

When done, let it dry by it self. DO NOT blow compressed air into it, it'll damage the diaphram inside.

Before installing make sure it's working properly.

On the top part, you'll notice a tiny vent hole. Put your mouth on it and your finger inside on the other side, where it connects to the back of the intake, blow into it and at the tip of your finger you should feel the diaphram inside move. If it doesn't, you need a new CDR.



-------

Some blue smoke on cold start ups is rather normal on older diesels, as long as it clears up quick. Could also be do to worn injectors/IP.

What's the mileage on the truck?
 
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Old Jan 29, 2011 | 07:35 PM
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this truck has 141,000 miles. when i got it there were 134,000 miles. I have no idea if it is original ip and injectors but i am guessing it is. The smoke lasted this morning about 10 minutes while it was warming up. Just started about three days ago and only on the first start for the day. seems to be harder to start than usual also.
 
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Old Jan 29, 2011 | 07:39 PM
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That's way to long, shouldn't smoke any color for more than a minute upon cold start up.

With the mileage, my bet is it's got the original injector/IP on it and time for some new ones.

Have it timed also.


Harder starts could also be glow plugs. Does the WTS light stay on for at least 10 full seconds?
 
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Old Jan 29, 2011 | 07:58 PM
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no start light it has a toggle switch. is there anyway to test the IP
 
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Old Jan 29, 2011 | 09:09 PM
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my IP went out and it would plume out blue smoke in the morning cold start, new ip and injectors and all has been well for the last 5k miles
 
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Old Jan 30, 2011 | 11:12 AM
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do you guys think sea foam will help? fill up the fuel filter run it for a minute and let it sit in the ip over night to help clean it out.
 
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Old Jan 30, 2011 | 01:29 PM
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Originally Posted by Jayme Duty
do you guys think sea foam will help? fill up the fuel filter run it for a minute and let it sit in the ip over night to help clean it out.
Id use Diesel Kleen. not sure if it would help, but it wouldent hurt. hows it run otherwise after its warmed up?
 
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Old Jan 30, 2011 | 01:38 PM
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Is it abit harder to start HOT than it usually was?

X2 on Diesel Kleen.
 
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Old Jan 30, 2011 | 04:16 PM
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starts great once warm and seams to run perfect, just lots of blue smoke on the first start.
 
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