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  1. O

    New OEM fan clutch but still roaring dump truck?

    BTW, J1000 - love your videos!
  2. O

    New OEM fan clutch but still roaring dump truck?

    Thanks. I have the same problem in the winter when OAT is around 60-70. Just takes longer for the fan clutch to engage. But once engaged, it doesn't seem to disengage during driving, until having been parked for a while. Are there any other members who live in AZ perhaps who can chime in on...
  3. O

    New OEM fan clutch but still roaring dump truck?

    Thanks for the input. Will clean the coolers and radiator fins later this week. Will also test the fan clutch as you suggested. when the engine is in operating temps, holding the RPM at steady 3,000 for a long while would cause the fan clutch to disengage after coming on for a while, wouldn’t...
  4. O

    New OEM fan clutch but still roaring dump truck?

    So any other thoughts on why the fan clutch wouldn’t disengage? I asked another local guy who has an 05 and his truck doesn’t do this. I know the heat is crazy here.
  5. O

    New OEM fan clutch but still roaring dump truck?

    Thanks for posting a wealth of info in one of your previous posts. I said I might get a BT ELM327 ODBII adapter to monitor temps since the old laptop I run Tech Stream on has to be plugged in due to almost dead battery. Came to find out later that the one I ordered would not work with IOS, but...
  6. O

    New OEM fan clutch but still roaring dump truck?

    Toyota OEM - silver color with the other side of the mating surface to the pulley bracket being black (not blue that is talked a lot about on this forum). Same as the Lexus OEM taken out. Part number 16210-50102.
  7. O

    New OEM fan clutch but still roaring dump truck?

    A quick update - as part of timing belt and water pump replacement, I had another Toyota OEM fan clutch and a new AISIN fan pulley bracket put in, along with new belts, idlers, tensioners, thermostat, etc. Fan still gets stuck and does not disengage. Still sounds like a dump truck or jet...
  8. O

    New OEM fan clutch but still roaring dump truck?

    First one after the cool morning 12-mile commute today just pulled into the garage at work. I rolled the DS front window down to get a better recording of the roar as I went above 2000 rpm while parked. Second one leaving work late afternoon a few minutes after starting driving. No roaring...
  9. O

    New OEM fan clutch but still roaring dump truck?

    The only reasons I mentioned several issues are because: 1. A locked up fan clutch is supposedly adversely affects mpg and engine power 2. Someone in a different thread had mentioned that after changing his fan clutch, his perceived transmission issues were gone too. I wanted to post about the...
  10. O

    New OEM fan clutch but still roaring dump truck?

    Fan clutch is OEM from the dealer. Before cold start, spinning the fan with my hand gets it to spin 1.5-2 blades. Cold start then idle a couple of minutes then shut off. Spin it with my hand again, about the same maybe just a tad looser about 2 blades turn.
  11. O

    New OEM fan clutch but still roaring dump truck?

    The cold start is normal. About 1400 rpm with fan coming on loud as it should. Fan speed reduces after 30 seconds or so. Idling a minute or two, rpm drops to 800 in Park. I get the abnormal roar after I drive it for a few minutes.
  12. O

    New OEM fan clutch but still roaring dump truck?

    Can you please elaborate?
  13. O

    New OEM fan clutch but still roaring dump truck?

    It coasts fine, no dragging brakes. The tires are 34s, no need to regear. The roar was present with factory rims and tires on.
  14. O

    New OEM fan clutch but still roaring dump truck?

    Thanks to all for chiming in. Year = 2007 so Five speed No, CDL is not engaged No, PWR button is not engaged All the lights and switches are in working order No codes - I use Techstream. Although I may download some ODBII phone app to scan via BT ELM327 as I drive to see the coolant temps -...
  15. O

    New OEM fan clutch but still roaring dump truck?

    Hi! A few months ago I sold my V8 4Runner and bought a 2007 LX470 with 87k miles. It had a roar that corresponded to engine rpm. Usually this would be the result of a locked up fan clutch. Last week I got a new OEM fan clutch (could have gotten and Aisin from Amazon I know) and installed it. I...
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