radiator fan clutch
#1
Pit Crew
Thread Starter
radiator fan clutch
i am planning to replace the radiator fan clutch. spins too freely, even when hot, which may have contributed to a high heat temp reading in traffic today. has anyone ever deleted the fan clutch, and simply put in a direct-drive fan? i mean one that bolts onto the pump, like the oem setup, not the electric fans.
#2
Racer
dlcoffin - Where is your temp change at?This thread shows were it should be.Also there is a temp sending sensor that can give false readings. Dont know if this is helpful,but its something to think about perhaps? Have been folks here with high gauge readings that were false when checked with thermometer.
https://www.clublexus.com/forums/ls-...-98-ls400.html
https://www.clublexus.com/forums/ls-...-98-ls400.html
#3
Pit Crew
Thread Starter
dlcoffin - Where is your temp change at?This thread shows were it should be.Also there is a temp sending sensor that can give false readings. Dont know if this is helpful,but its something to think about perhaps? Have been folks here with high gauge readings that were false when checked with thermometer.
https://www.clublexus.com/forums/ls-...-98-ls400.html
https://www.clublexus.com/forums/ls-...-98-ls400.html
#4
since i put new thermostat in, it'd been rock steady, until today. stop and go on freeway. i got to where i was going, shut off car, its been steady back to normal since, I've determined I'm going to replace fan clutch, it spins too freely when hot.. other threads confirm this as well.. original, expected things to go out after 21 years and 193k on clock. Pretty sure gauge is fine. my gauge sits at 2nd mark, which is normal. i watch the warm up, and always stops there. wanted to know if other people had deleted the clutch and just straight drive the fan and their results, if any.
Don't know anything about going to a full electric setup.
Last edited by 400fanboy; 10-07-18 at 12:01 AM.
#5
Racer
mine failed on me due to someone using an aftermarket replacement. I would only recommend using the OE Aisin clutch fan. Sounds very loud on startup when mine was bad due to seizing and not thermostatically locking and unlocking when hot/cold.
#7
Pit Crew
Thread Starter
update: i put in a new fan clutch. no more temp creep, in even stop and go traffic. ok, next problem... saving up to replace timing belt, of which there's 60k miles on it according to the last replacement body sticker..
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#8
Replaced my fan clutch this summer. The original hung in there like a champ, but made it difficult to diagnose. If you can keep turning it by hand on a cold engine over and over and over again. I would suspect it. Replaced mine ...pretty easy...don't get the heavy duty fan clutch though. Heard they are way too loud. I have a false temperature gauge reading on mine and it started by creeping up over years. Lexus dealer confirmed it is a false reading ... and nearly impossible to find replacement combination unit. My scanner tool does live feeds and she never tops 191 degrees.
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400fanboy
LS - 1st and 2nd Gen (1990-2000)
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07-14-18 11:50 AM