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6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis

Thumping sound from pasenger side

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Old Oct 12, 2013 | 11:27 AM
  #1  
firecatab's Avatar
firecatab
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From: Airdrie Alberta
Thumping sound from pasenger side

I am hearing a thumping sound from under the hood on the passenger side of my truck. I have been running a Spartan tuner for the last year or so and it almost sounds like a relay or something trying to open and close, anyone have any idea what it may be?
 
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Old Oct 12, 2013 | 01:42 PM
  #2  
ljutic ss's Avatar
ljutic ss
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From: Green Lane, Pa.
Sounds like the blend door is making the noise, switch to max A/C and see if the noise goes away.
 
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