2006 peterbilt with a cat c13 , the truck will start and idle fine for around 10 seconds then it starts to miss a little for another 10 seconds and then it starts to miss and run really rough .fuel pressure was at 65 psi . changed the transfer pump and fuel pressure regulator and it brought the pressure up at 75 psi but the truck is still doing the same thing. new air filters , and injectors, over head was just done. all the injector wiring is tight. any ideas?
CAT C13 running rough
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by vvicess, May 23, 2017.
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I have a C 12 in a 2000 379 and my ECM took a crap. Could not find a used one so I bought one from RWC international here in Phoenix, $2100
Truck runs like a raped ape now! -
I would guess ecm wiring...
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Sounds like its sucking air.
You can have good fuel pressure but still have air in it. Check all fuel suction lines.
Check the return for air also going back to tanks -
Was there ever a solution for this?
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Is check engine light light on? If all injectors coded very good chance need an ECM.
A5¢ Thanks this. -
We have a c15 and are slow at building boost. We got told injectors or sucking air somewhere.
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Sounds like sucking in air or ecm. Could also be an engine brake solenoid sticking when oil pressure builds up.
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Op did you fix your rough idle on your 2006 Pete C13
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