I have a "chirp chirp chirp" under the hood after the truck warms up. It follows along with the speed of the engine. It started intermittently about a month ago and only after the truck had been at interstate speeds for a couple hundred miles, got home from that trip and it seemed to disappear. Over the last couple weeks it reappeared and has steadily gotten worse to the point that once the truck is warmed up, it starts chirping again and doesn't stop.
Changed the belts (dual alternators) last weekend.. no change. Removed the belts this afternoon to see if I could isoloate to a pulley or alternator. Fired the truck up for a quick minute w/o the belts and it still chirps like a canary. Hard to isolate where it is coming from...
I've searched the boards high and low and didn't find anything that really describe this problem except for this vid:
It isn't my truck but the problem is identical except that there are no metal chips on my oil filter (oil is new as of a couple weeks ago).
Truck has 150k and typically runs like it was new.. just sounds like I have a cage full of birds under the hood.
Any help would truly be appreciated!! I really need this rig back on the road asap.
2004 F250 6.0L
Rotella T6 Synth 5W-40
No engine mods, no chips, oil and filters changed regularly
Changed the belts (dual alternators) last weekend.. no change. Removed the belts this afternoon to see if I could isoloate to a pulley or alternator. Fired the truck up for a quick minute w/o the belts and it still chirps like a canary. Hard to isolate where it is coming from...
I've searched the boards high and low and didn't find anything that really describe this problem except for this vid:
It isn't my truck but the problem is identical except that there are no metal chips on my oil filter (oil is new as of a couple weeks ago).
Truck has 150k and typically runs like it was new.. just sounds like I have a cage full of birds under the hood.
Any help would truly be appreciated!! I really need this rig back on the road asap.
2004 F250 6.0L
Rotella T6 Synth 5W-40
No engine mods, no chips, oil and filters changed regularly