14 liter det when it warms up starts to surge from 900 1300 rpm dealer says wiring harness no codes new pedal all sensors replaced egr replaced only thing left turbo ? got new harness from det wrong one. nuts. 09 freightlnr
60 series surging
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by o1reb, Jul 14, 2019.
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If the dealer effeted up with the wrong harness then turn th ones that does not hae clothes for fit
Intothesunset Thanks this. -
Had something similar, is it doing while not under load? Say cursing the parking lot at around 900 rpm in 2nd 3rd gear?
x1Heavy Thanks this. -
09 Freightliner is 10 years old. The ecm may be dying. The batteries are rated for 10 years.
x1Heavy Thanks this. -
Once dead.... you will NEVER get a restart out of it. You can crank until cows come home, ultimately
Intothesunset Thanks this. -
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Clean and or replace all Grounds fpr batteries and engine. Check ground stud welded in frame.
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If your having a battery issue in the ecm, it will give a code 31 I believe. Someone above stated the batteries are good for 10 years? I disagree. There are thousands of ecms still running on detroits well over 10 years with original batteries. Diagnose first, don't throw parts at it. Which wiring harness did the dealer suggest you change?
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