Compression Ignition Addict
Join Date: Jan 2012
Location: Gulf Coast
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First off, it appears that you may not be running a motorcraft oil filter. If you are not, that is a bad idea. Next, those intake pipes look good, are they powder coated?
Now, diesels are loud, hard to diagnose sounds like that. My guess is that it's the ac compressor, see if the noise corresponds with the ac kicking on and off, or an idler pulley going bad. You would need to loosen the drive belt and check the pulleys by hand. If you think it is the fan or fan clutch, see if the noise corresponds with the fan speeding up. lastly sometimes the best way to figure this out, is to get a piece of hose and CAREFULLY move it around the engine compartment while holding it up to your ear. Jmo.
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Unfortunately had to Sell my ......2004 KR CC SWB FX4 - Edge insight cts, blue spring upgrade, updated HFCM drain plug, XDP coolant filter, CAT EC-1 rated coolant, Custom Diesel EGR delete, CAT delete, Rotella T6
SEE MY OIL COOLER REPLACEMENT AND EGR DELETE -
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Last edited by southend; 07-21-2012 at 03:25 PM.