Question about 1998 Volvo S70

1 Answer

Abs senor is going bad

When i come to a near complete stop, the brake vibrate the whole front end but not the streeing wheel.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Volvo Master
  • 3,433 Answers

Check, visually for brake pad contamination. Especially inboard brake pad/ Any fluid leakage should be visible through holes in wheel or on the backside of wheel. If no leak or contamination abs can be in question as suggested.

Posted on May 14, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why is the left front tire thumping and the brake pedal vibrating when I stop


ABS thinks you are skidding, and is applying the brakes on and off. Likely one of the ABS sensors is bad.

Apr 10, 2015 | 2002 Pontiac Grand Prix

3 Answers

Front end vibrates under pedal


have tires checked and rebalanced --if rotors were cut have rechecked if new than need to check the cv axles one of the axles possible going bad-- also steering components worn or loose --also bad shock or ball joints

Apr 09, 2013 | 2003 Ford Taurus

1 Answer

My anti-lock brakes light on the dash is on....what could be causing this?


Problems with ABS can be frustrating. You have senors on the front wheels, you have wires that run to the sensors, plus you have the ECU mounted to the master cylinder or on the fire wall depends on other options. Now the wheel sensors work like little alternators. Your wheels will have a gear that the senor reads as the wheel turns and then creates an A/C voltage that tells the ECU unit that the wheels are turning. Having a ABS code could mean that wiring to one of the sensors is broken or has fallen off, or is corroded at the plug end. Your ABS system has four major parts the ECU, an ABS hydraulic unit and the wiring harness to the wheel sensors, then last the sensors themselves. You will need to check all the wiring harnesses to each If you have a multi meter you can read the voltage of each wheel sensor at the other end of its wiring harness. Jack up the front end and find the end of each wheel sensor harness and spin the wheels by hand. you should get a reading on the AC voltage scale of about ..45 volts. not quite a half volt. when the wheel stops the meter should go to zero. spin the wheel and the meter should show voltage. That will tell you if the sensor and the wiring is good. The ECU has no trouble shooting it is good or bad.can't help you there. same with the Hydraulic unit. Most times it will be a wire broken or a bad wheel sensor. Good hunting.

Oct 20, 2010 | Oldsmobile Cutlass Ciera Cars & Trucks

2 Answers

What to look for when your ABS light comes on. Is therea sensorthat needsto be replaced. Where are the ABS located on the car. Thanks


Problems with ABS can be frustrating. You have senors on the front wheels, you have wires that run to the sensors, plus you have the ECU mounted to the master cylinder or on the fire wall depends on other options. Now the wheel sensors work like little alternators. Your wheels will have a gear that the senor reads as the wheel turns and then creates an A/C voltage that tells the ECU unit that the wheels are turning. Having a ABS code could mean that wiring to one of the sensors is broken or has fallen off, or is corroded at the plug end. Your ABS system has four major parts the ECU, an ABS hydraulic unit and the wiring harness to the wheel sensors, then last the sensors themselves. Now learn what each part looks like I am posting pictures for you. You will need to check all the wiring harnesses to each part. Then check the sensors. here is the ECU unit --->> e6fbbf8.jpg --->>> Next is the Hydraulic unit.--->>>45dc6de.jpg--->>> Then the wheel sensors. --->>> 3d29687.jpg If you have a multi meter you can read the voltage of each wheel sensor at the other end of its wiring harness. Jack up the front end and find the end of each wheel sensor harness and spin the wheels by hand. you should get a reading on the AC voltage scale of about ..45 volts. not quite a half volt. when the wheel stops the meter should go to zero. spin the wheel and the meter should show voltage. That will tell you if the sensor and the wiring is good. The ECU has no trouble shooting it is good or bad.can't help you there. same with the Hydraulic unit. Most times it will be a wire broken or a bad wheel sensor. Good hunting.

Oct 18, 2010 | 1998 Ford Ranger SuperCab

2 Answers

Juddering brakes when stopping


if your abs light is on a code can be retrieved naming the possible culprit a wheel speed sensor or the abs module could be faulty if you have no light on then i would definately say the module is bad

Apr 30, 2010 | 1997 Ford Explorer AWD

2 Answers

Brake pedal vibrates while braking and doesent stop right away


There's speed sensors at each wheel. You may have got some contamination in front of one of them... sounds like the abs is trying to compensate for un equal speed at each wheel... and something may be blocking a proper read at one of the wheels...

Jul 23, 2009 | 2002 GMC Sierra 1500

1 Answer

Clunking/vibration/squeling noise under the front end


sounds like u need front brake pads and rotors i would check brakes first if ok then i would check front wheel bearings but cv joints make a clicking sound usauly when turning

Mar 29, 2009 | 1997 Chevrolet Cavalier

1 Answer

Vibration when braking that I feel through the brake pedal.


Is it possible that you are hearing the abs pump running in the engine compartment? It sounds like an ABS problem with one of your wheel speed sensors.

Mar 01, 2009 | 2005 Saturn VUE

2 Answers

Electrical?


ok im going to go threw the list of overall problems with electrical
alternator wareing out you might not know but your alternator was used from before overhaul this could have been a problem before other problems replace this

now seperate problems down the list
power windows- you had overhaul done and i hope the mechanic marked the electrical lines the relay junction box if not then he got a relay wire crossed with another wire

steering bars for vehicle can be worn have checked by mechanic

abs lights- faulty sensors bad or worn hardware warped rotar bad bearings
always do either front together or back together brake install or all at same time with brake installs never do a side of brakes this throws the whole vehicle off its running smooth and stopping smooth

a/c this comes back to the relays in relay compartment this could have been switched with door relays you need to have the wireing checked for this

the brakes alone are by self there own problem so yes these are seperate problems

you will want to get a computer diagnostics and a free brake inspection at any brake master i found that they do more than just brakes and its really helpful in diagnosing problems for free then telling you what you need keep in mind brake masters
i hope this helped seeing that im not actually there in person to see vehicle

Jun 13, 2008 | 2002 Buick Rendezvous

Not finding what you are looking for?
1998 Volvo S70 Logo

Related Topics:

150 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volvo Experts

yadayada
yadayada

Level 3 Expert

77202 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22265 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Volvo Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...