Wierd noise.....
#1
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Wierd noise.....
Okay...I have a 2000 GS300 with 48,000.(Yes, we almost never drive it) Here's my scenario.....When I'm stopped at a light or and I get this vibrating noise coming from the front somewhere. It sounds like it could be behind the dash or in the engine compartment.
Here is where I get thrown for a loop. This only happens when the car is in DRIVE and the brake is applied and I'm stopped. If I throw it into PARK, the noise goes away immediately. If I let off the brake, it goes away. I haven't tried the other gears yet or reverse, but I am going to try those as well.
Any ideas? I thought it may be a vacuum or something, but I really have no clue.
Here is where I get thrown for a loop. This only happens when the car is in DRIVE and the brake is applied and I'm stopped. If I throw it into PARK, the noise goes away immediately. If I let off the brake, it goes away. I haven't tried the other gears yet or reverse, but I am going to try those as well.
Any ideas? I thought it may be a vacuum or something, but I really have no clue.
#2
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Search is your friend... https://www.clublexus.com/forums/sea...archid=5529775
Its your brake system or rather the electric brake booster motor. Bet if you put it in park and pump the pedal a few times you'll hear it again
Its your brake system or rather the electric brake booster motor. Bet if you put it in park and pump the pedal a few times you'll hear it again
Last edited by Mr Jokster; 10-25-10 at 04:54 AM.
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I just can't figure out why it doesn't always do it all the time? Sometimes I don't hear it for weeks.
If it was the ABS thingy, shouldn't it do it all the time?
If it was the ABS thingy, shouldn't it do it all the time?
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#8
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Okay...I'll add some research data here.
If the car is in PARK, I cannot get the noise to start, even when pumping and then holding the brakes.
If I roll the drivers side window down and then back up, once the window is rolled back up, the noise goes away within 1/2 a second. The window is up when the noise starts.
This is some weird stuff to me......
If the car is in PARK, I cannot get the noise to start, even when pumping and then holding the brakes.
If I roll the drivers side window down and then back up, once the window is rolled back up, the noise goes away within 1/2 a second. The window is up when the noise starts.
This is some weird stuff to me......
#11
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It does it consistently, while driving, standing still, in Park, in Drive, etc. The brake booster is just building up pressure again (and when it does that the brake fluid in the reservoir goes down btw).
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