Brake Drum Wheel Cylinder problems of the 2002 Toyota Camry

I drive a 2002 Toyota Camry xle 4 cylinder car. Ever since we bought it, it had problems braking when over an irregular surface like potholes, manholes etc. Recent reports on Toyota prius braking issues sounds very similar to what I experience on my car. I read on blogs online that other 2002 Camry xle owners reported the same. I thought this was pretty normal at first, but not anymore. The car jerks for couple of seconds when I try to brake over irregular surfaces, the abs kicks in and you lose control for couple of seconds. Please investigate this matter with seriousness. I think this is a very important safety issue. Thank you.

I have a 2002 Toyota Camry xle with a 4 cylinder engine. The anti lock brakes have never really engaged properly when braking even moderately on any uneven surface, such as rippled pavement, railroad tracks or smaller pavement irregularities. The pedal feel is very light and you need to really brake quite hard to get the brakes to engage. This situation cases a very long stopping distance and with a very weak and dangerous braking effect. It is almost as if there is very little braking action when trying to stop on the uneven road surface. The braking effect is better, but not as strong as it should be on normal road conditions. I have always maintained the car to the manufacturer's recommended level and have asked about this braking issue on several occasions. The dealer has said that the brakes perform properly. I think this may be a computer related system issue and needs to be examined. Please note that this is not a single instance occurrence. This has happened at least 5 or 6 times since I purchased the car new in June 2002. It is a very disconcerting feeling when trying to brake and the car just doesn't respond as it should. We have 4 other cars in our family, two hondas (accord and odyssey), a Toyota corolla and a Nissan altima. None of those cars have any such braking issues. I can get you the VIN ,but do not have it as I am filling out this form.

My 2002 Camry began "lurching" approx. 2 years ago. We have taken it for service 5 times, to no avail. We replaced spark plugs, a sensor and were told by one dealer that it was jumping from cylinder to cylinder, but they could not find the source of the problem. Two other visits to 2 separate dealers were unsuccessful in experiencing the problem during test drives. They even had a regional manager come and check it out. They said they have never seen this problem before and could not diagnose it. It happens inconsistently when cruising at lower speeds and again at higher speeds. Sometimes it is worse than others and then it goes days without happening. I am now concerned that it may be a safety issue connected to the gas pedal and would like to know what the problem is and have it corrected. I have also experienced issues when braking when going downhill on a bumpy surface. This has happened since I had the car. When I reported it to the dealer, they told me it was just the way the disc brakes work, but it was scary - feels like you don't have control over the car. We have been loyal Toyota owners for many years due to their history of quality, reliable cars, but have concerns now. Please let me know what can be done to help us with these issues. Thank you. Approx. Incident dates below are not accurate. It has been an ongoing problem for 2 or 3 years.

Brakes on the 2002 to present Camrys, I have changed the whole systems out, and I keep telling tech suport that the fluid drains back into the mastercylinder from the line that loops up on non abs systems, the lines leak on the abs sysem due to under tighting. They tell us that the system was made to be soft from complaints of previous owners this is on 02 and present. I see all the below but why wait berfore someone gets killed,somthing needs to be done now. I work at a Toyota dealership for 12 years now and this keeps getting shoved under the rug, the design is a defect in it self. At least do this test, drive a 02- 04 Camry non abs, 2az eng 4 cyl, find a safe road, running about50- 80, slam on the brakes, to the floor they go. Hope nothing is in front of you. May not do it on every one. Find one that will ,then bleed them, still soft but will stop better,wait awhile then try it again, to the floor they go. Sorry about the fake name and all but I woulden be working at Toyota or any dearlership very long reporting somthing like this. Call me a rat if you like but then say,maybe he is just thinking about me and my loved ones. Please don't let this turn into a firestone thing.