Lexus RX 300 - Answered Questions & Fixed Issues


The 1999-2003 Lexus RX300 models have a common failure of the engine computer that causes the harsh shifting of the transmission. You need to get the computer (ECM - Engine Control Module) rebuilt or replaced before it causes permanent damage to the transmission. Even if the transmission is already ruined, the ECM will still need to be repaired. Most often, the transmission is fine though, and rebuilding the ECM will restore the smooth shifts that the Lexus should have. Circuit Board Medics can rebuild the ECM and reprogram it so that you only have to plug it back in when you get it back. See the link below:

http://circuitboardmedics.com/1999-2003-lexus-rx300-hard-transmission-shifting-ecm-ecu-computer-repair/

2002 Lexus RX... | Answered on Jun 10, 2019 | 2,461 views


Its believed this is held by clips care age could break these clips as the plastic becomes brittel.Be best see your vacumm cleaner dealer and he may have the attachment to do the cleaning.Good luck.

Lexus RX 300... | Answered on Mar 28, 2019 | 26 views


You can try out some guide from here reliable-store they also provide live chat feature for instant help and it's very useful

Lexus RX 300... | Answered on Mar 12, 2019 | 94 views


Check you haven't locked the rear window switches via the switch on the driver door.

Lexus RX 300... | Answered on Mar 11, 2019 | 33 views


Go to dealership or take o e bolt as sample to the hardware store or car wrecking yard

Lexus RX 300... | Answered on Mar 02, 2019 | 38 views


There isn't just one cause for this symptom. Is the engine light on while it is running? If so, please have the codes read and forward them. My first guess for "Hunting" is timing. The timing belt may be loose or the crankshaft sprocket could be loose. There could also be an electrical issue with the fuel system, ignition system or a component related to the ECM. Please write back with more diagnostic information and I will do my best to help.

2003 Lexus RX... | Answered on Sep 27, 2018 | 46 views


No, nothing will drop down into the pan when it is removed. The only precaution that you will need to prepare for is the transmission fluid. Supporting the pan and directing the fluid can be messy. Wear safety glasses, lay down cardboard, have plenty of rags on hand and a large drain pan.

1999 Lexus RX... | Answered on Sep 18, 2018 | 80 views


It is not, there are complaints about the timing chain noise and there are not many 6 cylinder engines that you have to worry about that one.

Lexus RX 300... | Answered on Jun 24, 2018 | 696 views


You will get your solution and all info on service
info, repair info, parts info, wiring/electrical/fuse diagrams, error/fault codes, torque specs, PCV,
owner's/service/repair/parts/maintenance manuals etc everything
this website www.reliable-store.com
it's a very good website for vehicle problems even as old as 1991 ford..

2003 Lexus RX... | Answered on Mar 19, 2018 | 84 views


A lot of times the fuel filter location for a newer model car like you have is it's going to be in the fuel pump

2001 Lexus RX... | Answered on Feb 07, 2018 | 162 views


Cowl drain may be clogged on driver side

2001 Lexus RX... | Answered on Jan 06, 2018 | 111 views


Is it a standard? If so sounds like the clutch is giving up and needs replacing. If it is an automatic then check fluid level might be low, that can cause slippage.

1999 Lexus RX... | Answered on Dec 25, 2017 | 170 views


Replacing plugs is not a complete tuneup. Problem could be in plug wires or in coil that fires the plug. If you lookup codes and identify cylinders that are misfiring, try disconnecting that plug wire on both ends (plug on one end, coil on the other) and substituting a different one temporsrily. If your coils are mounted directly to the plug, try swapping coils between cylinders to see if the problem shifts to a different cylinder.

Lexus RX 300... | Answered on Dec 20, 2017 | 243 views


Hi, The first thing to do is take off the hub caps & see if one or more wheel nuts have come off! If that is not the answer then check if one of the brake pads has come adrift. The only thing easy left is the wheel bearing, should that not solved then you have a half shaft problem and you need to take that out look at the teeth on part that goes into the Diff the teeth should be straight if not then you need new half shaft & if one has gone you can be assured so has the opposite wheels well on they way to going or your Diff needs renewing & thats expensive. Please leave me feed back: Malcolm Campbell, Thanks.

2000 Lexus RX... | Answered on Dec 18, 2017 | 77 views


i am suggesting you a link which will help you to solve the problem easily i had tried this link before http://toolsnyou.com/

1999 Lexus RX... | Answered on Dec 12, 2017 | 73 views


Yes, I would have to agree that it is a wheel bearing if the noise is only coming from the left side. Not uncommon on this year and model.

2002 Lexus RX... | Answered on Dec 09, 2017 | 65 views


You can get empty key cases on ebay, open the old key case and remove the transponder with the buttons on it and transfer it to the new key case, no programming necessary because you are using the same transponder, al that's left then is to have the key cut to fit the ignition switch.

Lexus RX 300... | Answered on Dec 09, 2017 | 34 views


The "repairmen" damaged your vehicle while attempting to fix it.

2003 Lexus RX... | Answered on Oct 26, 2017 | 61 views


Visit the on-line store, known as reliable-store, they have the repair manuals. I'm sure you will get the solution of your problem. 1999 lexus rx300

1999 Lexus RX... | Answered on Oct 14, 2017 | 82 views

Not finding what you are looking for?
Cars & Trucks Logo

-1,002 questions posted

Ask a Question

Usually answered in minutes!

Popular Products

1999 Lexus RX 300
1999 Lexus RX 300

443 Questions

2001 Lexus RX 300
2001 Lexus RX 300

350 Questions

2000 Lexus RX 300
2000 Lexus RX 300

326 Questions

2002 Lexus RX 300
2002 Lexus RX 300

142 Questions

Top Lexus Experts

Marvin
Marvin

Level 3 Expert

84966 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22484 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Are you a Lexus Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...