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CATEGORY LISTINGS > DETROIT > Rough idle 2000 12.7 series 60 [ REFRESH ]
Thread Title:

Rough idle 2000 12.7 series 60


Created On Sunday November 08, 2009 07:25 Diesel Talk
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BigRig
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Posts: 4
Joined: Jul 2009

Note Sunday November 08, 2009 07:25 View thread in raw text format
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My 2000 International 9400 Eagle has a rough idle - It almost sounds like it is running out of fuel.
Also can hear the turbo whistle but this could be normal?
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GoneFishen
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Joined: Jan 2007

Note Sunday November 08, 2009 13:59 View thread in raw text format
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Turbo whistle could be good or bad, usually an EGR engine will have nice sound to it. However a whistle could also mean a loose CAC clamp and/or damaged CAC hose. On the more expensive side a CAC that does not meet the pressure standards. Check the CAC system out at 30 psi for 15 seconds.I made pugs for the 'hoses' so I could test the entire system, not 'just the cac'.
Fuel pressure on a non egr should be no less that 15 psi at idle with NO air in the return line to the tank. Non egr engines should have around 60 psi at NL speed test and hold around 40+ at full load at 1300 rpm. EGR DDEC 5 should NOT exceed 32 psi at ANY time regardless of load or rpm.

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DDA tech for 30 years,all 2 cycle,series 60,50 mbe also.
1995 F250, 191k mi.
Lost Wages, Nv
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BUTCH
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Posts: 256
Joined: Jan 2009

Note Sunday November 08, 2009 19:35 View thread in raw text format
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I HAD AN INTAKE GASKET BAD WHEN MY TURBO WHISTLED LOUD,BAD INJECTOR WILL CAUSE A ROUGH IDLE

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IM A 35 YR OWNER OPERATOR
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CATEGORY LISTINGS > DETROIT [ REFRESH ]
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