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LOSING POWER. 2006 FRHT 1FUJA6CKX6LW27175. EVEYTHING

Customer Question
LOSING POWER Mechanic's Assistant:...

LOSING POWER

Mechanic's Assistant: What's the make/model/year of your truck? Engine type?

2006 FRHT 1FUJA6CKX6LW27175

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

YES, EVEYTHING

Submitted: 11 months ago.Category: Medium and Heavy Trucks
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Answered in 5 minutes by:
9/13/2017
Technician: Daniel Wilson,
 replied 11 months ago
Daniel Wilson
Category: Medium and Heavy Trucks
Satisfied Customers: 6,889
Experience: Owner at DJ Wilson
Verified

Hi my name is***** will be glad to help. What do you have for fault codes?

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Customer reply replied 11 months ago
no codes are showing
Technician: Daniel Wilson,
 replied 11 months ago

Engine make/model? Mercedes/Detroit?

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Customer reply replied 11 months ago
detroit
Technician: Daniel Wilson,
 replied 11 months ago

No codes I would start by changing the fuel filters and check for restrictions and leaks between the tank and pump as well as verify your fuel supply pressure is good

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Technician: Daniel Wilson,
 replied 11 months ago

Check for air cleaner restrictions and for leaks in the turbo and intake boost piping

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Customer reply replied 11 months ago
checked fuel filters, replaced turbos.
replaced oil rings on pistons
Technician: Daniel Wilson,
 replied 11 months ago

Check the turbo as well that the compressor wheel is free from damage and spins freely

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Customer reply replied 11 months ago
compressor new spins freely
Technician: Daniel Wilson,
 replied 11 months ago

Thanks for the update. This is immediately after overhaul the low power? You only replace the oil rings and not the compression rings? Any particular color smoke?

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Customer reply replied 11 months ago
black smoke
Technician: Daniel Wilson,
 replied 11 months ago

My other questions? What work was done?

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Customer reply replied 11 months ago
We have replaced the turbo, egr cleaned oil rings on pistons
Technician: Daniel Wilson,
 replied 11 months ago

So you had the head off and reused the compression rings, rod and main bearings etc but there is new oil rings?

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Technician: Daniel Wilson,
 replied 11 months ago

That is not common practice. An in frame at that point is. Were the liners honed, measured with a bore gauge?

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Technician: Daniel Wilson,
 replied 11 months ago

If I am understanding this correctly and this is the case, the rings are likely not seating properly.

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Customer reply replied 11 months ago
I'll check rings
Technician: Daniel Wilson,
 replied 11 months ago

Also verify your valve and injector adjustments are in specs as well. Keep me posted.

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Customer reply replied 11 months ago
rings are set as it was in a kit. everything is in specs
Technician: Daniel Wilson,
 replied 11 months ago

thanks for the clarification on what was replaced... as far as the rings... and assuming you reused the original liners did you measure them with a bore gauge and hone them?

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