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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

2006 6.0 P0308 code

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Old Jan 16, 2016 | 05:23 PM
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2006 6.0 P0308 code

I have a 2006 F250 with a 6.0 powerstroke. Today I went to start it and it had a definite miss and blowing white smoke from the tailpipe. I do not have an egr cooler so it's not that. The coolant bottle is not low nor does it have any pressure building while the engine is running. Could this be a headgasket? Or possibly the #8 injector? Sugestions on diagnosing my problem?
 
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Old Jan 16, 2016 | 07:13 PM
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Most likly the injector. A ta high compression engine will not normally smoke from the tail pipe with a bad headgasket.
 
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Old Jan 17, 2016 | 11:47 AM
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Any ideas how to confirm? Other causes?
 
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Old Jan 17, 2016 | 01:11 PM
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scan for a low contribution code or maybe a buzz test also.
 
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Old Jan 17, 2016 | 02:26 PM
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Switch injector to a different cylinder and retest.
Buzz test
Ohm test
Load test harness
 
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Old Jan 19, 2016 | 09:54 AM
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I am pretty sure its the fuel injector now. I did notice a slight "burp" through the intake every revolution. Is this from the cylinder not firing? or indication of something more sinister like a bent or hung up valve?


Also, the truck is here in Miami with me, not back at home. Can someone recommend an honest shop I can have towed to?
 
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Old Jan 19, 2016 | 10:17 AM
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a thump in the intake is the sign of a push tube issue.... someone else may chime in to confirm that.
 
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Old Jan 19, 2016 | 10:25 AM
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Burp may not be the best description. It sounds like a large air compressor maybe?
 
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Old Jan 19, 2016 | 07:15 PM
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If its poping back threw the intake. You need to pull the valve cover and see whats going on.
 
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Old Jan 21, 2016 | 09:55 AM
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I am just going to have it towed to a shop. If I wasn't 200 miles from home I might tackle it, but I am pretty limited on tools. I think I have a set of wire crimpers, a crescent wrench, a multi tool and a Philips screwdriver.
 
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Old Jan 21, 2016 | 10:00 AM
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Originally Posted by EMC V10 X
I am just going to have it towed to a shop. If I wasn't 200 miles from home I might tackle it, but I am pretty limited on tools. I think I have a set of wire crimpers, a crescent wrench, a multi tool and a Philips screwdriver.
What more do you need?
 
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Old Jan 21, 2016 | 10:02 AM
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Originally Posted by WatsonR
What more do you need?
It would be nice to have some duct tape and bailing wire but I guess I can make due.
 
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Old Jan 21, 2016 | 11:40 AM
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almost anyplace you stop... they have coat hangers and plastic grocery bags!
 
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Old Mar 2, 2016 | 09:58 AM
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Update

I decided to take my Truck to a shop and there is 0 compression on #8 with a Mechanical gauge. He took off the valve cover and all of the valves are moving but at least one intake valve is not sealing. It is coming back through the intake. This means the Cab and Head has to come off. I am going to go ahead and have him pull the other head and do new gaskets and studs since its already going to be torn down that far.


My question, what can cause a valve to fail? Is this common on the 6.0?
 
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