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When cold hard start, cold blooded,blue smoke,run bad until…

Customer Question
When cold hard start...

When cold hard start, cold blooded,blue smoke,run bad until it warms up

Mechanic's Assistant: How many miles are on the car? Have you been losing oil or coolant?

99000

Mechanic's Assistant: What is the model/year of your Ford?

05 f350

Mechanic's Assistant: Are you fixing your F350 yourself? What have you tried so far?

Most likely at shop., just trying to get idea whats up. have idea

Submitted: 7 months ago.Category: Ford
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Answered in 11 minutes by:
9/27/2017
Ford Mechanic: Ricardo Hohl, Master Certified Tech replied 7 months ago
Ricardo Hohl
Ricardo Hohl, Master Certified Tech
Category: Ford
Satisfied Customers: 4,343
Experience: Automotive instructor at Porter and Chester institute
Verified

Hi welcome to just answers my name is ***** ***** is this a diesel engine? can you tell me the engine size

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Customer reply replied 7 months ago
6.0 turbo power stroke 2005
Ford Mechanic: Ricardo Hohl, Master Certified Tech replied 7 months ago

sorry for the delay give me 3 minutes please

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Ford Mechanic: Ricardo Hohl, Master Certified Tech replied 7 months ago

is the engine light on? blue smoke is usually cause by the upper head leaking oil through the valves and in to the combustion system . but it can also be the injectors leaking pressure in to the combustion

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Ford Mechanic: Ricardo Hohl, Master Certified Tech replied 7 months ago

if the engine light is on then you may have a sensor or electrical problem, but if no codes then you have valve seals leaking oil to the cylinder overnight

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Customer reply replied 7 months ago
No codes, stops smoking after a few minutes. Also, it was just hard starting when cold. Then I changed oil. Starts better. Then started smoking
Ford Mechanic: Ricardo Hohl, Master Certified Tech replied 7 months ago

OK then yes you have valve seals leaking oil trough the valve stems in to the cylinder this will contaminate the diesel mixture on the cylinder and cause a hard start and also smoke blue smoke out the tail pipe

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Customer reply replied 7 months ago
Valve seal? Even if there has been no oil loss?
Ford Mechanic: Ricardo Hohl, Master Certified Tech replied 7 months ago

i will say injectors leaking or spraying excessive diesel in to the combustion chamber but the smoke color would be black suds, what you are experiencing is blue in color and that can only be engine oil.

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Customer reply replied 7 months ago
Ok, thank you
Ford Mechanic: Ricardo Hohl, Master Certified Tech replied 7 months ago

Thank you

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Ron
Ron
Ron, ASE Certified Technician
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