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Daniel Wilson
Daniel Wilson,
Category: Medium and Heavy Trucks
Satisfied Customers: 5587
Experience:  Owner at DJ Wilson
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LOSING POWER, 2006 FRHT 1FUJA6CKX6LW27175, YES, EVEYTHING,

Customer Question

LOSING POWER
JA: What's the make/model/year of your truck? Engine type?
Customer: 2006 FRHT 1FUJA6CKX6LW27175
JA: Are you fixing your truck yourself? What have you tried so far?
Customer: YES, EVEYTHING
JA: Anything else you want the truck mechanic to know before I connect you?
Customer: no
Submitted: 1 month ago.
Category: Medium and Heavy Trucks
Expert:  Daniel Wilson replied 1 month ago.

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

Customer: replied 1 month ago.
no codes are showing
Expert:  Daniel Wilson replied 1 month ago.

Engine make/model? Mercedes/Detroit?

Customer: replied 1 month ago.
detroit
Expert:  Daniel Wilson replied 1 month 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

Expert:  Daniel Wilson replied 1 month ago.

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

Customer: replied 1 month ago.
checked fuel filters, replaced turbos.
replaced oil rings on pistons
Expert:  Daniel Wilson replied 1 month ago.

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

Customer: replied 1 month ago.
compressor new spins freely
Expert:  Daniel Wilson replied 1 month 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?

Customer: replied 1 month ago.
black smoke
Expert:  Daniel Wilson replied 1 month ago.

My other questions? What work was done?

Customer: replied 1 month ago.
We have replaced the turbo, egr cleaned oil rings on pistons
Expert:  Daniel Wilson replied 1 month ago.

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

Expert:  Daniel Wilson replied 1 month ago.

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

Expert:  Daniel Wilson replied 1 month ago.

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

Customer: replied 1 month ago.
I'll check rings
Expert:  Daniel Wilson replied 1 month ago.

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

Customer: replied 1 month ago.
rings are set as it was in a kit. everything is in specs
Expert:  Daniel Wilson replied 1 month 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?