Volvo - Abs - Brakes - S70 :: ABS Keeps Going Out
Mar 9, 2011
I have a 99 S70 and the ABS kicks in at in appropriate times, and stays stuck on (i.e. the pedal vibrates every time I touch the pedal and I can hear a loud buzzing sound even if I am not applying the brakes). After a while, the noise stops, but the ABS and TRACS lights come on. The first time this happened my mechanic replaced the ABS module and the problem went away for a while. The problem has resurfaced and each time "fixes" the problem for free, but it keeps happening. A) What is the root of the problem? B) Can I fix this myself every time it happens in the future?
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I have a Volvo P1800 I am restoring. The problem I have is the brakes don't work. The brake peddle does to the floor so I think and have read that this is due to the master brake cylinder. I removed the to of the master reservoir and found it is bone dry but the main reservoir is full? Why this is if the seals have failed surely there would still be brake fluid in the master reservoir???
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I've been in some version of a Volvo since I inherited my parents brick-colored sedan in high school. It was a tank, ran forever and kept me safe and protected. Years later I bought a new black Volvo sedan. In 2006 with a hubby and two kids, I decided that I could graduate to the SUV. Feeling like I'd made a fantastically safe and practical decision, I drive my silver XC90 to work and on road trips. It's not the fanciest nor sexiest vehicle, but I feel my family is safe.
Hard working folks should not have huge budget surprises like my Volvo SUV has turned into. Little did I know what I was getting myself into when I made this purchase. When I took it into the Culver City dealer for my 30,000 mile service yesterday, I found out that my Volvo XC90 needed it's second replacement rotors and brake pads. I'd already been through this expense at 17,000 miles, much to my surprise. I'd never heard of needing to replace brake pads and rotors at 17,000.
Now, at 30,000 miles the local dealer's service department told me I needed another set at a cost of $1,000.
I have friends driving a Toyota or a Honda that rarely require maintenance or repairs. Volvo is an expensive vehicle to buy and it gets you every time you visit the service department and all repairs are expensive. It's disappointing to say the least.
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My 89 240 is a project car so I am just fixing everything up as new until it's all done.
Replaced the Brake Booster with a fully reconditioned one, a new master cylinder, full pressure bleed, new pads. Now I have fantastic brakes but they feel super spongy still . As an example, I make an emergency stop to check if they are ok and after stopping just fine , the pedal still wants to go down further. I have checked all the flexible lines for ballooning and they are ok .
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My daughter called and told me that her brakes are not coming back up after she has stopped. She had to take her hand and pull the brake pedal up. She has a 2000 Volvo S-40. What is the matter?
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When I have to brake suddenly, at about 35 miles an hour, I begin to get strong vibrations in the steering wheel and the same in the brakes. After 35 miles an hour (and prior to this speed), it's relatively smooth. I'm also starting to notice an unevenness in my tires. I've gotten it checked out and was told that my brakes still have wear, but there was a little "warping."
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My 1990 Volvo 760 turbo has a problem. The brakes are sometimes hard to depress (although they work). When this happens, there are accompanying problems with sluggish acceleration and difficulty with the automatic shifting. What's happening?
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I have a 1995 850. About a year ago, I suddenly had a loud grinding noise coming from my brakes. It only happened in hot weather and when the brakes seemed to be hot. Also, it only happened when I was coming to a final stop, like the last 10-20 feet. I took my car to my "trusted" mechanic. They diagnosed it as being my front pads and rotors, so they replaced them (they also felt the front vibrating.) NOW the brakes seemed okay after I got it back the second time (no loud grinding noise.)
When I got the car back, the weather was starting to cool since it was nearing winter. My winter weather is like 70's during the day, and during this time, there was no grinding. It's now starting to get hot again, and sure enough, that grinding noise is back, but not as bad as the first time a year ago. Again, it is only when the brakes heat up and I come to a final stop (the last 10-20 feet.) If I break lightly, it won't make that noise, and it takes me driving for about 15 minutes for the grinding noise to start (it sounds like metal on metal and loud.) Also, I don't feel the vibration like I did a year ago. I only drive the streets, and have not been on the freeway since I got the new brakes.
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I have had to return my V50 twice for ABS associated problems. The first time to change a speed sensor then to replace the passenger side front hub. Now the car is making a soft shhhhhh sound for a split second whenever I drive off. According to the car manual on page 8, the car tests the ABS system "when the car first reaches the speed of 12 mph... The brake pedal will pulsate several times and a sound may be audible from the ABS control module. This is normal."or so the manual says.
My pedal has never pulsated except when I was having problems with the ABS system. In Honolulu, there is only 1 Volvo dealer and according to them the shhhh sound is normal. The repair tech went so far as to take me for a drive in a new 2011 V50, which did make the same sound. I am concerned only because I feel the braking system is important to me and the history of ABS issues. Volvo Customer service deferred to the dealers' service center. Should I take it in because the brake is not pulsating.
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I have a 2002 Volvo S40. I have recently noticed a very loud screeching noise while driving. It sounds like metal on metal, and it stops when I push the brakes. Any thoughts on what this might be? It sounds like it is coming from the front right tire. I also have heard rattling up there for a while (sounds like something is loose) but my mechanic was not able to find anything with this. I also have issues with my head lights. They go out about every other month and need to be replaced.
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I have a 1997 F150, 4X4. My mechanic says its time for new brakes and was curious if it would be worth possibly converting from drum brakes to disc brakes??
My mechanic has quoted me $300 to do the rear brakes, would it be worth the extra money to convert??? I really don't care for drum brakes. I have done a search on the internet and every time it brings up the issue with the parking brake.
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What are the correct timing marks and positions for a Volvo 940 Turbo? I especially need the position of the crankshaft pulley. I have read the timing mark is on the cover, but unfortunately mine has dry rotted and crumbled away.
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I recently bought a beater '89 F-150 (I-6, MT) with the following problems:
1) Both rear brakes seem to stick on occasion--almost like there was a "check valve" on the rear brake line. When that happens, there is a "BRAKE" and "Rear ABS" light (although the light does occasionally come on without brakes sticking noticeably).
What I noticed in Haynes is that the "RABS I" system functions in the following way: a) Upon noticing rear axle spinning slower than front axle, it actuates a valve, isolating the rear brakes b) If the problem persists, it then dumps the pressure back into the main system.
So, I wonder: Is this an ABS system acting up? If I were to (temporarily) de-power the ABS setup, would it default to "no ABS," or would I need to remove the hydraulic valves from the brake lines? (Don't really want to if I don't have to.)
2) You can select either fuel tank, get that tank's level to indicate on the fuel gauge...yet it only "draws" from the front tank.
Again, Haynes says there is a low pressure pump in each tank, feeding a high-pressure pump in essentially a small "header" tank. The "dual-function reservior" has a wholly mechanical selector, and notes that "Tank switching versus gauge conflicts can occur under certain failure mode conditions."
So: I can understand that the mechanical selector can, in effect, "stick" on one tank. But what I don't understand is how it can still draw from the front tank, with the "rear" tank selected (and presumably, that tank's low-pressure pump trying to feed the header tank.)
Is it possible that the low pressure pump--while beneficial to prevent gravitation at the main pump--isn't strictly necessary to fuel the engine? Or do I have a problem with a low pressure pump that's "always on," regardless of the selected tank?
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Two months ago, I replaced the rear drum shoes, wheel cylinders and seemed after that I was ok until today. I checked the rear brakes and they are split in half. i noticed my abs & brake lights lit up this morning. I would think the ABS is getting stuck? How do I check the ABS? This morning I felt like something was holding back the truck. I continued and when I got home I said to myself, let me just check the rear brakes and thais what I found. Both sides had the shoes broke.
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What would cause the rear drum brakes to lock up upon hard braking? I have replaced the wheel cylinders, installed new spring kit, and adjusters.
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I have this truck (in signature below) that I have not driven for ~3 years. As I am starting to drive it I am noticing I need to put A LOT of pressure on my brake pedal to get the brakes to work. They stop the truck and the pedal doesn't feel soft as if there is air in the line but it feels as if I apply a lot of pressure and there isn't a lot of grab.
While it might be possible, I don't think I have any type of glaze or coating on my brakes that would cause this. 95% of those 3 years, the truck was inside.
I wonder if it feels as if the truck is hard to stop because of the additional power I have coming from this new motor?
Is there any type of part I can replace in the brake booster to adjust the pedal? Or brake booster. Maybe that is going bad?
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I have a 1994 F-250 4x4 w/manual transmission. I was driving a few days ago when the brake pedal suddenly went to the floor. I had almost no brakes (less than 10% at most), but luckily was able to get off the road safely. It was immediately apparent that the line connecting the T-fitting and the passenger side drum had broken.
I have never blown a brake line before, but I always assumed that you would have either front or rear brakes, depending on which line blew. Unfortunately I was wrong! The master cylinder reservoir was about 3/4 full when I initially checked it, but after I moved (slowly) the truck to a safer spot in the parking lot, I checked again and it was nearly empty.
Is my brake system behaving normally (no brakes front or rear, blown line completely empties the reservoir), or should there be some safety factor built in? If the system is operating correctly, is there any way to convert to a system that doesn't give out fully when a line is blown?
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My truck sat for 4 years. 1995 F-250. We needed to replace the brake lines. when you hit the brakes the truck does stop but not fast enough and it will not pass inspection this way. So far I've replaced
1. All the brake lines
2. Calipers
3. Brakes all around
4.RABS module
5. Master cylinder
6. Wheel cylinders
Pretty much everything but the brake booster. Lines were bled several times. The brakes still go to the floor. Anything else that I haven't tried? I want my truck back!
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I have a 2004 Ford Expedition and today on the freeway I had to step on the brakes pretty hard to avoid an accident. After pressing, the pedal resistance became really soft and the brakes worked, but were very sensitive (a lot of pedal movement to brake). I had this happen some time ago and I did a complete system flush and no problems since then, but it has to do with how hard I hit the brakes. What could be wrong????? BTW - I never noticed the anti-lock brake pedal pulse at all during this event. I'm not even sure it is working at this point. No dash lights to indicate an error of any sort.
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I have a 2005 F250 & both front calipers are locking up. I have replaced the front pads, no change, my mechanic installed a new master cylinder. No lockup for about two weeks until today. Front calibers are locking up again.
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I have a 97 F250 that is having reoccurring brake issues, It has an intermittent hard pedal with little to no brakes when it occurs. It will stop but you are standing on the pedal with both feet. I have replaced the booster, master cylinder, and the vacuum pump in the past trying to isolate the issue and still had the problem. On this year model the abs ids only on the rear correct???? if it is shouldn't it only be affecting the rear brakes? Since this truck has a dual reservoir MC the front should still work?
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