Question about 1991 Lexus LS 400

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Lexus sytarts to makes this dragging noise at 4000rpm

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2001 lexus rx300 problem. When accelerating the vehicle makes a grinding sound as if something is engaging and you feel vibrations. It only last for one to two seconds and this only happens sporadically.


Any grinding is not good. This almost sounds like a sticking brake rotor/caliper which is popping free, or a parking brake dragging. Either way the fact that it stops does not mean it will fix it self. I would inspect all 4 brake rotors for excess wear.
try to determine if this happens after parking and braking, then isolate the area you thing the noise is coming from.
Separate from that it could be a gear issue in your trans at low speed but you need to get it checked ASAP as it will only lead to greater expense.

Nov 22, 2009 | 2001 Lexus RX 300

3 Answers

I have a 2000 lexus rx 300. clicking arond or near center consul


the location and type of noise u hear is most likely coming from the electric blend door temperature control actuator.when they fail the ting gears inside make a clicking noise like this, the location you gave is dead on to where this part is located.

Aug 27, 2009 | 2000 Lexus RX 300

5 Answers

I have two noise-related problems with my '99 Lexus rx300.


I had a similar annoying noise with the root cause being found in the air-mix servo. This servo motor box is one of three I believe and is located on the passenger side of the climate control system and accessed by removing the glove compartment (4 screws) and the panel down just above the floor. The servo in question is located behind a couple of heater tubes and you need a stubby phillips screwdriver to remove it. Disconnect the wiring plug. The servo has a damper actuator on one side. Hold with the actuator down and pry open the case. Don't fret if the snaps break because the unit is held together with screws anyway. Clean the contacts inside the box and re-lube the gears and contact plate with silicone grease. Reassemble and reinstall (kind of a pain). Works fine now in my auto (all is quiet again!) and saves hundreds of bucks vs. a visit to Lexus service. Shield the servo from heater tube heat with some aluminum reflective duct sealing tape. I think the heat breaks the lube down and caused the servo voltage to become errant, causing the servo to "hunt" and generate annoying noise. Good Luck.

Jun 13, 2009 | 1999 Lexus RX 300

2 Answers

Mk2 Golf GTI 2l 16v Not Performing Like IT Should!


ive had this problem the loud tapping noise if properly you have the wrong oil in the engine the lifters only have a very small hole in for the to get in so if it to thick it cant get in causing the slapping noise.

Jun 15, 2008 | 1992 Volkswagen GTI

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