Hello Dear Lexus Owners,
I recently bought a 2008 RX400h with about 140K miles and drive off. It drives fine out from the dealer but I noticed a short squeal when the car is started and drive off from Parking. When I depressed the brake pedal to shift the gear from P to R, I heard a noticeable squeal coming from the engine compartment. It's a short squeal like 2-3 second and it stops or may be repeat once or twice with about 10 second interval if I keep pressing down the brake pedal at the Park Position.
It never made that sound when the gear is in R or D position or during regular driving. It only squeals once or twice when the car is parked as the pump is pushing brake fluid but it can't because the line is full.
Is that the sign of the brake flush needed or air trapped in the hydralic lines or the actuator assembly starting to wear out?
I have seen videos of failing actuator on youtube but it's nothing like that at all. It's just a squeal or two at the Park position.
Is that normal for old RX400h or it's needing to go to the Lexus dealer?
I have a Techstream setup and may be able to flush the brake fluid myself if that's all it needed. I think I'll replace the pads and lube all the brake caliper pins before the flushing.
Thanks for your input, folks!