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I have a 1999 dt466, that is sometimes a steamy smoke out of…

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I have a 1999...

I have a 1999 dt466, that is sometimes a steamy smoke out of the tailpipe. and we loose a small amount of coolant )maybe a 1/2 pint a day. Has also dropped in power a little bit. it is either head gasket or a Egr Valve…I do not know if the engine has a EGR..Can anyone tell me How to diagnose my problem??? ***** *****

Mechanic's Assistant: Thanks. Can you give me any more details about your issue?

I loose coolant but there is nothing leaking. Does this engine even have a EGR valve?

Submitted: 2 years ago.Category: Medium and Heavy Trucks
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Answered in 24 minutes by:
2/1/2016
Technician: Daniel Wilson,
 replied 2 years ago
Daniel Wilson
Category: Medium and Heavy Trucks
Satisfied Customers: 6,884
Experience: Owner at DJ Wilson
Verified

Hi my name is***** will be glad to help. If an EGR engine it could be the EGR cooler but in both EGR and non EGR engines it could be an injector cup leaking, cracked head or head gasket problem, cylinder liner leaking ( would have coolant in the crankcase oil). Let me know

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Technician: Daniel Wilson,
 replied 2 years ago

Since yours is a 99 I believe the EGR engines did not start until 99. You will need to pressure test your cooling system to find the leaks with the injectors removed but only at a pow pressure not to cause a leak and inspect the injector cups.

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Customer reply replied 2 years ago
I have checked the oil regularly and can not find any coolant in the oil..where is the EGR valve located on my engine(DT466)?
Technician: Daniel Wilson,
 replied 2 years ago

That was a typo... EGR was 04/05 and later engines

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Technician: Daniel Wilson,
 replied 2 years ago

Sorry about that....So your problem will likely be in the head or injector cups

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Technician: Daniel Wilson,
 replied 2 years ago

Hi, Did you get this resolved?

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Technician: Daniel Wilson,
 replied 2 years ago

Hi, did you get this resolved?

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