I am an assistant service manager at a high volume toyota store in nj. We just had a customer with a 99 100 series complain about loss of brake pedal. Upon inspection we found that his hydraulic brake line ruptured due to rust. The line is located between the gas tank and the frame toward the driver rear in front of the tire. Seeing how consistent these vehicles are from one to the next when it comes to problem spots [and there are few trouble spots on thease beasts [I am the owner of a 220k 2000 cruiser. With this said you all may want to take a look at your brake lines before you have an issue. I just found it useful to share this with all of you.
time to check your brake lines.
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Thanks, ill check mine out, any part numbers for what needed replacement? My cruiser has been blessed with 13 jersey winters, so I'm all in
Sounds like time for another Toyota Recall. John
Thank you. Will check
What do you mean loss of brake pedal? When I step on mine it seems to go down a little ways before engaging not touchy like my 80
Um. No.
So since we have a true 4 channel system, how does the truck react to a broken line in one of the channels? Does it keep pressure on the other 3? I know back in the day, vehicles had diagonal 'channels' - DS Front / PS Rear - to give some braking in the event of a line or slave cylinder failure.
Didn't Spressomon's brake line rupture there also? I'm not surprised to hear this. My old rust belt 100's lines were pretty badly corroded.
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It is not the rubber hose. It is the actual metal tube. There are 2 of them one running above the other one. To see them you need to lie on your back and move yourself under the truck in front of the driver rear tire. You are looking at the space between the inside frame rail and the gas tank. You will see 2 tubes there. Above those 2 tubes are 2 more tubes but they are either fuel line or charcoal canister tubes. You are concerned with the 2 lowest metal tubes. In this guys case he blew out the bottom tube and when the mechanic went to change it the other tube broke away with moderate pressure. The good news is the mechanic said the lines loosened with no drama from their fittings. I just checked mine and they seem decent. This may be very isolated to super rusty trucks as this guys underside looked like it spent several years in the ocean. Hope this helps
Dan's was a front brake hose....
Dennis,
Based upon the my failed PS front brake hose experience a few years ago the 100 does not have a safety/redundant brake circuit. For all the safety BS the guberment/insurance industry require, even on 1999 MY vehicles, it was quite a shock to lose all brakes, from the one hose rupture...on the Flint Trail switchbacks no less. Quite harrowing actually.
The failure occurred at the banjo fitting. We're not 100% sure what caused the failure; however believe the broken front frame side anti-sway bar mount/bracket was a contributing factor...
I have also had to replace my emergency brake cable due to corrosion; and the brackets.
Frustrating. You'd think they could have easily programmed in logic to detect a dead circuit and shut that channel in the abs manifold. Or had a passive excess flow valve that would clamp on flow. Can't imagine a functioning system would have any significant flow on brake application, it's just pressure and flex.
Just noticed a leak undermine in this spot and it is as you have described here - love the searh funtion!
Is there a part number to replace the entire line, looks a dificult spot to splice in a section...I will have to check if it is the upper or lower, probably should just do both right away...
Glad this popped up. I'm fairly certain I'll need to swap them out soon. I was hoping they were part of the AHC system. @beno how much are these hard lines? Thanks a ton.
My rear brake line broke open last night. It poured brake fluid all over my driveway. It was rusted thru bad. My mechanic didn't think you could order new brake lines. He said he usually makes his own. Would it be cheaper to order all new brake lines?