Last post on Apr 05, 2012 at 2:08 PM
You are in the Toyota Avalon
What is this discussion about?
Toyota Avalon, Brakes, Sedan
#9 of 175 Re: Maintenance on 2001 Avalon [rceggl]
Apr 03, 2005 (2:40 pm)
Condensate will build up in the brake system of any car. You're right, the system is sealed, but it's not that tight. Moisture can get into the reservoir. And if I'm not mistaken, hot brake fluid is hydrophyllic, and will attract water vapor from the air. As the fluid cools the water will precipitate out. Left long enough, the water will pit the cylinders and cause leaks and spongy brakes. Happens on all cars.
Now, whether 38,000 miles is when the system should be flushed, and whether a "power flush" is required are good questions.
My experience has been to have the brakes bled to push the water out. Maybe the power flush does a better job.
I guess what you should research is how much brake repairs can cost versus having the system flushed.
I'm not real big on using Dealers for maintenance. If you still have suspicions, find a good mechanic and ask him.
As to the transmission, I have heard that Toyota transmissions can be pretty brutal on the fluid so its a good idea to keep up on the changes. I also know that if you have an oil cooler, (most cars have one in the radiator; others may have a separate unit) that filings from the transmission can migrate there and then settle out in the bends of the tubing, where they begin to restrict the fluid movement. The effect can be that your transmission gets hotter than it should, and that's not good at all. So flushing once in a while is a good idea. Again, whether 38,000 miles is enough to cause a build up that you should be concerned about is something I don't know. But keep in mind that this stuff happens to all automatics, not just Toyota.
#10 of 175 Re: Maintenance on 2001 Avalon [zone1]
Apr 11, 2005 (2:19 pm)
Am sure that adding new brake fluid, transmission fluid, or coolant results in degradation of metal parts. (Ions in the fluid cause breakdown of the metal until equilibrium is established.) Therefore, you should either change the fluids regularly (40k miles) or not at all. Not changing them at all is probably better for your parts in the long run. Flushing will therefore re-excite the bits of metal gunk that are settled out. Alternatively, it will create more metal gunk that will stop up things. If your car is 10 years old and hasn't had the fluids changed, you run a big risk with your head gaskets by suddenly having your oil change guy "flush the system" for you. 2001 car, probably okay to change the fluids if you want to.
#14 of 175 Speaking of brakes...
May 24, 2002 (11:31 am)
I have a related question about Avalon brakes. I currently own a 1999 Avalon. I bought the car because it came so highly recommended, by members of Town Hall, Consumer Reports, etc. However, I am having problems with the brakes squealing nearly all the time.
I have taken it to the local Toyota dealer, where the tech has twice told me that the problem is because the asbestos was removed from brakes, they squeal alot more. If this is the case, why doesn't every car on the highway have squealing brakes? He further stated that every couple of months I should do a "panic stop" in order to clean the brakes and reduce the squealing.
Any light anyone can shed on this would be most appreciated... it drives me crazy!!!
May 25, 2002 (8:33 am)
Did you buy it new or with mileage. If not new, then it may have had a brake job where they did not use Toyota pads. The lifetime pads are much harder than OEM and will cause squealing. I just had the pads on my parents altima replaced for the squealing. They were like brand new, but the squealing was horrible. Had nissan pads put on and it's now as quiet as can be.
#16 of 175 With mileage please...
May 29, 2002 (6:21 am)
Bought the Avalon a year ago with around 34,000 miles on it. The tech says it still has 70% of the pad left. Will check and see if they are original Toyota pads. If not... may get that brake job after all... Thanks for the info.
(Still driving me crazy...)
Jun 09, 2002 (7:21 pm)
Does the pads on your Avalon have the proper shims installed on them? The shims cost as much as the pads ($30 to $40) so sometimes they are not replaced when a pad replacement is done. Switching to soft, so called 'organic' pads will stop the squeak, but they must be replaced more often. The cheap 'organic' pads, however, will not wear out the rotors as fast, saving some money on rotor cutting or replacement.
Jun 10, 2002 (11:38 am)
Just wondering, are these the OE pads?
If replaced, are they the Toyota OEM ones? Do I have to assume it was a dealership job?