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Old Mar 6, 2015 | 10:54 PM
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I have a 2000 Rx300 AWD,The tranny wont go into 3rd gear.I brought the Truck 3/14/13, USED it has 180,000 on it,I never had any work done on the tranny.Would you recommend a full flush and or a knock sensor change to fix this problem?truck is in very good condition other wise.Please anyone with knowledge of this problem i would GREATLY APPRECIATE YOUR INPUT.THANK YOU INADVANCE.SLIMGUY!!!!
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Old Mar 7, 2015 | 06:14 AM
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Never do a full flush, only drain and fill using T-IV compatible fluid.

Do you have a CEL? Do you mean the car doesn't go into 4th gear i.e. overdrive?
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Old Mar 7, 2015 | 02:41 PM
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Any other symptoms? Rough running, CEL on? You could take it to AutoZone and they will read any codes for you.
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Old Mar 8, 2015 | 09:38 PM
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When the truck gets to 40mph the rpm needle start to go up to 3000 the faster i go the higher the RPMs goes The thuck is an Lexus 2000 Rx300 and has 180,000 on it,Should change the KNOCK SENSOR oR anything u can tell me to do would be very helpful,THANx in Advance

Last edited by slimguy221; Mar 8, 2015 at 09:41 PM.
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Old Mar 8, 2015 | 11:32 PM
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Originally Posted by slimguy221
When the truck gets to 40mph the rpm needle start to go up to 3000 the faster i go the higher the RPMs goes The thuck is an Lexus 2000 Rx300 and has 180,000 on it,Should change the KNOCK SENSOR oR anything u can tell me to do would be very helpful,THANx in Advance
I would say please read the sticky threads.

A very important question was asked, Do you have Check Engine light On? Before answering that can you tell us if the CEL light, lights up during test ,,, the first time you turn ignition switch from acc to run. If the CEL light is busted, please have the OBDII codes read. There can be many reasons for not going to overdrive gear, and knock sensor problem will turn on the CEL.

Salim
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