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Have a 2012 freightliner dd13 code 4334 fmi 7 replaced metering…

Customer Question
have a 2012 freightliner dd13...
have a 2012 freightliner dd13 code 4334 fmi 7 replaced metering block same code except says now mechanical system not responding any input would be appreciated
Submitted: 3 years ago.Category: Medium and Heavy Trucks
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Customer reply replied 3 years ago
when we removed the line to the metering block there didnt appear to be any def fluid in the supply line the original code was the 4334 fmi 7 but low air pressure
Answered in 29 minutes by:
6/1/2015
Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago
roybelding
roybelding, Shop Foreman Freightliner trucks
Category: Medium and Heavy Trucks
Satisfied Customers: 7,923
Experience: Shop Froeman for Freightliner Trucks
Verified
good afternoon my name is ***** ***** I will assist
do you have the service link program???
use an air pressure gauge and make sure there is 75-80 lbs air pressure to the metering block from the PLV.
Roy
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Customer reply replied 3 years ago
i dont have the service link program i have pocketfleet diagnostics so i am not able to read some of the parameters through my scanner.
Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago
ok, did you check the air pressure??
can you do the scr air pressure test on the metering block???
Roy
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Customer reply replied 3 years ago
in the process of checking that now unable to run the scr test i will let u know in a few
Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago
ok, let me know
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Customer reply replied 3 years ago
we have 76lbs of air at the meterring block
Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago
ok, check the line for any oil or water.
can you monitor data with it in re gen??? the air pressure and def pressure will show in the data
Roy
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Customer reply replied 3 years ago
Womt regen manually am unable to force with computer could it b the pump
Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago
be nice to talk to you directly to save time going back and forth.
the pneumatic switching valve could be bad or yes, the pump but tests need to be done.
it would be nice to see what def pressure is.
Roy
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Customer reply replied 3 years ago
Arent the switching valve and the pump come as one assembly
Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago
no, the valve can be purchased separately
Roy
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Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago
how are you making out??
Roy
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Customer reply replied 3 years ago
replacing the pump assembly
Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago
why?? what lead you to that??
when you said there was no fluid to the metering block before, that is normal. the truck purges the lines when you turn it off to get rid of all fluid in the lines??
Roy
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Customer reply replied 3 years ago
The pnuematicvalves and the pump come as a unit the feed lines are not restricted and return lines are not restricted we have 76 psi new metering block no wiring faults what else would u suggest? With limited data acces and the dealer two weeks out what else could it be
Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago
ok, just wanted you to know the valve was available separately for about 20 bucks
the plv valve on top of the trans. was there anything in the lines other than air??? if not then put it in a re gen and see what happens.
can you monitor the re gen with your program??
Roy
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Customer reply replied 3 years ago
Should i be able to manually regen this unit with the button on the dash? Also test drove truck this morning light did not return after installing pump
Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago
then the code cleared itself. a driving re gen is possible but you will not know any readings for the process.
looks like you have got it figured out.
please dont forget to rate me as it is the only way we get paid for our efforts
Roy
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Customer reply replied 3 years ago
My software can clear codes so i cleared them and did not return im in the process of buying the detroit software
Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago
good, get the newest version, 8.1
Roy
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Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago
how did you make out??
please dont forget to rate me as it is the only way we get paid for our efforts
Roy
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