Tapping Noise
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Senior User
Joined: Apr 2004
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Tapping Noise
When I'm cruising, or when I first step into acceleration with my 6.0 PSD, I hear a tapping noise similar to lifter noise in a gasoline engine. I'm told it's injector noise and is normal. Anyone else experience this, or have any suggestions? Thanks.
Post Fiend
Joined: Apr 2004
Posts: 19,098
Likes: 8
From: Great State of Texas
Wish I could give a warm and fuzzy here but, you might want to take her in for a check up if this is what you are hearing.
Metal Tapping Noise from Rear of Engine:
Excursions built after 1-10-05 and 2005/06 F-SuperDuty may have a metal tapping noise from the rear of the engine on decel or light acceleration, or under loads when the high oil pressure is at higher levels. This may be due to a damaged/improperly fitting HP oil pump output quick connect fitting. To diagnose, you will need a scan tool with active command capability. Command the IRP duty cycle to 45% and listen at the high pressure oil pump cover with a stethescope as the engine speed is increased to 2800 RPM. If the noise is louder on the pump cover than on other parts of the engine, the pump cover will need to come off to inspect and replace the fitting. Broadcast Message 5511.
Good luck.
Metal Tapping Noise from Rear of Engine:
Excursions built after 1-10-05 and 2005/06 F-SuperDuty may have a metal tapping noise from the rear of the engine on decel or light acceleration, or under loads when the high oil pressure is at higher levels. This may be due to a damaged/improperly fitting HP oil pump output quick connect fitting. To diagnose, you will need a scan tool with active command capability. Command the IRP duty cycle to 45% and listen at the high pressure oil pump cover with a stethescope as the engine speed is increased to 2800 RPM. If the noise is louder on the pump cover than on other parts of the engine, the pump cover will need to come off to inspect and replace the fitting. Broadcast Message 5511.
Good luck.
