I need to do a brake job on the front of my 04 Elantra, how to reset the caliper piston. I've tried the traditional c-clamp method but can't get the clamp to grip well on the non-pad side because of the caliper shape.
View 4 RepliesI changed the rear brake pads on my 2002 Elantra and the caliper pistons would not retract to fit over the pads. After 11 years of weather exposure the pistons were frozen. I removed the calipers, soaked the pistons with WD-40 and penetrating oil and heated the housing with a hair dryer. Doing this periodically for a day I got the pistons to break free. I removed the pistons for inspection and they were severely corroded. I ordered two rebuilding kits on line which included all seals and pistons.
The pistons are threaded and screw into a threaded rod inside the housing. Should I thread the pistons in until they bottom out, or should I turn them out until they touch the inner brake pad?
One of the pistons in my driver side (UK) front brake caliper is sticking, so I've bought a second hand caliper just to fix the problem until I come to sell my pri in a month or so.
View 15 Replies2001 F250 SD diesel. Brakes have been working fine with no pulling. They just started to squeal recently so I knew it was time for some new pads.
I'm having a problem that seems to plague me often when I try to replace disc brake pads. I can't get the twin pistons to go back in to allow room to get the new, thicker pads in.
I unscrewed the cap to the master cylinder and used a spreading tool (that came in a brake kit from Advance Auto Parts) to compress the pistons. No movement.
I put a lot of force on it. No piston movement.
I unscrewed the bleeder screw and tried again. No movement.
I am a few DAYS into a project changing my ball joints on my 2001 F250SD 4wd.
Latest issue is I can't get the brakes back on. One of the pistons was pressed out making replacing the calipers onto the rotor impossible. Fiddling with things has only made it worse.
The higher piston is stuck extended, and the other piston doesn't even budge.
The truck is our only vehicle, and I have been working on it since Tuesday night. It looked like it was going to be done today, but I can't put it all back together now.
That piston will not move. I've tried opening the bleeder and taking a clamp to it but all I get it a few more drops of fluid, no visible movement.
A while ago it looked like this. I got it to move in a little, but it is firmly stuck.
I'm wondering if I can pull it all the way out and clean/sand polish it. Can I use a quick-clamp on the rubber section of brake line to isolate the calipers so I can pull the piston out without draining all the brake fluid from higher in the system? And what do I do about the other piston that doesn't seem to be moving at all? Grab with big pliers and twist/pull?
Some of us just have a knack for finding layer upon layer of problems on projects...
I pulled into my driveway after a 30 minute drive and smelled burning brakes. The right front was the culprit so I took a garden hose and cooled it down. The next day I remove the caliper and one of the pistons fell apart. So I need a new caliper and trying to decide if I buy after market or go with Motorcraft? I think the rotor, caliper, and pads are original since I the rotor is stamped Ford and the caliper bracket has TRW and Ford markings.
View 12 RepliesI have a 2004 Elantra GLS. My left rear brake was hanging (wheel was very hot to the touch after driving, while other wheels were not), so I had a friend check the brake pads. We decided to replace the pads and rotors. While doing so, the parking brake seemed stuck in the on position, so I opted to have him disconnect it completely until I could afford to replace it. I had used it for the first time about 2 weeks before I noticed the hot brake problem, so we figured that must have been why the brake was hanging.
My friend replaced the rotors and pads, put some penetrant/lubricant on the piston of the caliper and reassembled the brakes. He did use the special tool to spin the caliper in when putting the pads on, however he didn't know that was necessary and tried to force them in with a C-clamp first.
Now, I seem to have two problems:
1. The left rear brake still hangs sometimes. I will drive the car and when I park it I can feel the heat coming off of the left rear wheel. It is extremely hot, so I know the brake is hanging (even with the parking brake disconnected). What is the problem here? Is the caliper bad? Would replacing the caliper solve the problem? Does the parking brake have to be connected to stop the caliper from hanging up?
2. My second problem is the pulsating of the brakes. I am afraid the rotor is warped because of the heat, or maybe he didn't clean everything well enough before he put the new rotor on. How can I figure out what the problem is? Is there a way to check a rotor to see if it is warped? Could there be another reason I feel the pulsating brakes? By the way, the brake fluid is full.
If the caliper needs to be replaced and I can leave the parking brake disconnected, are there any special instructions my friend should know about before working on this? He does work on a lot of cars and rebuilds cars to sell, so he is pretty knowledgeable. I think the only thing he didn't know about was rotating the piston. I would like to provide him with detailed instructions if necessary.
This is my second time posting for the same issue on a 2003 3.5L with 120,000+ miles. Rear driver side brake caliper is stuck again. I have replaced both rear calipers after the driver side stuck a few months back. So most likely the first time was caused by something else.
What else could be causing this? Brake line, master cylinder, or other? I did not replace any brake lines the last time this happened. Just calipers and pads.
I've been having a randomly recurring problem with my 2004 Hyundai Elantra for several months now. I'll be driving along and will notice that my brake pedal won't depress. When I step off of the accelerator, it is like the brakes are already engaged. Eventually, the brake pedal won't depress at all and the car acts like the brakes are fully engaged. Sometimes I can let it sit for an hour or several hours and the brakes will readjust and I can move again. So far I have replaced both calipers, rotors, 2 brake hoses and the master cylinder, but I am still having this problem. My mechanic is flummoxed. Any time I have the car towed in, the brakes release by the time it arrives and he has no problem to observe.
View 3 RepliesI have an 04 elantra 2.0. Seems to idle rough when in D and foot on brake at the the lights etc. Put it into N roughness goes away.
View 15 RepliesStarted to change front pads and rotors on my GX470, but couldn't get the caliper bolts loose. Is it safe to use a torch to heat up the area around the bolts so I can loosen the bolts? Any other way to break these bolts free?
View 12 RepliesI have a 2007 Prius gen II with 50,000 miles on it. I took it for MOT ministry of transport annual test and it failed on rear brakes. The near side puled 82kg the off side puled 242kg I puled the pads and copper slipped the pads and sliders the piston pushed bake with ease reassembled them and re tested them witch increased the near side by 5kg. How did you rectify it.
View 2 RepliesAfter a routine brake pad replacement the brake pedal hits the floor when applied with normal force. The pedal feels like a badly leaking master cylinder, but prior to the pad replacement the brake pedal was firm as a rock with no drop at all. If I pump the brakes the pedal will come up to normal height, but if I then maintain light pressure the pedal will again sink to the floor.
1. Truck was braking fine, however pad 3/4 worn
2. Replaced front calipers, rotors and pads
3. Replaced front brake feed hoses
4. Replaced rear pads
5. Started engine
6. Started bleeding from furthest point from MC a) passenger rear, b) Driver Rear, c) passenger front, d)driver front. Did it two times...
Still, brake travels all the way to the fire wall and never develops tension. Moreover, sometimes, when person pumping brake puts pressure and i open bleed, no fluid comes out. Could it be a failed master cylinder??? I tend to think it's not because 24hrs ago, the pedal felt fine and the truck was braking ok.... So much for preventive maintenance.
My 2004 Toyota Highlander with 84K miles has been diagnosed with a seized front driver side brake caliper with worn brake pad (1/32). I had recall work done a few days ago at the dealership and this was discovered afterward during the "complimentary" multi-point check-up. - You know, the long laundry list of recommended work they try to sell you on. Of course the brake work is actually necessary.
Since the vehicle was just inspected 2 months ago at our local shop, my husband suggested I take it back there to verify the diagnosis and see what that mechanic would recommend. That mechanic confirmed and showed me the seized caliper/worn pad, which, by the way, was functioning well in mid January at inspection, and measured 7/32. This mechanic recommends replacing both calipers, pads, turning rotors. There was no indication of a problem with the RF caliper, but he says it's just a good idea to replace it so we would avoid having another problem in the future.
I want to ask everyone's opinion regarding replacement of just the bad caliper vs. both. Are we getting ripped off as far as the estimate and is the flush necessary? Also, is this issue typical in the first place, and what causes a brake caliper to seize? We've had several other vehicles driven many more miles than my Highlander and never experienced a seized caliper.
Is there a secret to this? I've tried everything. I have the proper tools, I've dried bleeding the brake fluid as I compress, but nothing is working! This is the first time I've changed my brakes, but everything online looks straight forward enough. Is there anything I could be missing or does it seem that my piston is legit stuck?
View 9 RepliesStarted my 2010 Prius the other day and the traction control, brake light, abs light and a yellow Astrix light came on and wouldn't go off. The car drives and handles just fine, brakes feel normal. I have tried resetting the lights with a trick with a paper clip someone else posted, but it didn't work for me.
View 7 RepliesWe recently replaced the driver's window on our 2001 Prius, and now when the auto-close switch is activated, the window closes and then immediately bounces back open to halfway (triggering jam protection function). I know it's common to have to reinitialize the window in this situation, but can't figure out how to do it!
I have the Gen II+ instructions but they don't work for this car. How it should be done on a Gen 1? The manual has no details, unfortunately.
Got Elantra GT 6 month ago. Good car, but it seems I have a very common problem of Elantras - lost of brakes. My car has TCS, but no ABS. It started 4 month ago. Car is fine for several weeks, but then within two days brake pedal getting from bad to worse. My mechanic already replaced master cylinder and right rear caliper. Did not work. Yesterday it was third time when I almost (very soft pedal) lost brakes. Today in Hyundai dealer service they bled the brakes and said "that they hope it will work". Their mechanic found air in both (left and right) rear brake lines. So, my question if I have a leak in, say, left line will it propagate to the right line? I am asking because I do not know the hydraulic schema of the brakes and want to collect as much info as possible.
View 17 RepliesThe brake lights on my 02 Elantra won't turn off. Do I likely have a faulty brake light switch? If so, how do I replace it?
View 5 RepliesI have a 2002 Elantra and all of the TCM, ABS, AIR BAG and BRAKE lights come on as soon as I push the throtle and the car starts moving forward. I looked inside the owner's manual but all it says is that if all these lights come on at the same time and stay on the car needs to be taken to the dealership ASAP.
View 4 RepliesI have been working on my 01 Elantra for 2 days now. My problem is that I have absolutely no brake pedal at all, it just goes right to the floor. and this is only when the car is running, when it is off I give it a quick pump and i have a nice firm pedal. I installed a new master cylinder, bench bled it and all that jazz. I replaced the rear brakes and a wheel cylinder, I have also bled the brakes multiple times, and mutliple ways. bled the master while on the car and all the brakes while the car is off and while it is running. I dont know what else could be wrong with this. I looked at all the lines and there are no wet spots, no hoses are swelling up. everything looks top notch...i just have no brakes why.
View 15 Replies