20 Most Recent 1998 Volvo V70 - Page 3 Questions & Answers

You need more work than just replacing sensors. That hideous noise is the ABS system kicking in prematurely. Take it back to the place that installed the sensors, they didn't check the whole system.

change the abs relay in the fuse box under the hood

you have to take it immediately to the car speciialist to repair this malfunction of the abs

Codes can be removed from most mechanics with a code reader, they can check and reset them for you, bear in mind these lights came on for a reason, ask the mechanic what did the codes signify. Good luck

ABS light comes on with ignition then should go off when you start the car.
If abs sensor does not turn off after disconnecting the battery, then there is a real problem, a faulty sensor or ABS malfunctioning.
When the ABS led comes on immediately after you start the car and stays on usually is one of the relays.
The main one is called surge arrester relay, if it is faulty usually there have been an overvoltage.
There should be two more, usually located behind the black plastic cover of the ABS.
Testing and changing the faulty relay can fix the problem.

If light turns off on startup, and comes back on when you reach some speed, usually you need to check the wheel sensors. You test them unplugging the sensor located behind the wheel and testing it for continuity with a multimeter.
Use Haynes manual to find locations and specs of relays.
Contact a qualified mechanic if you cannot fix it yourself, problems with ABS may compromise safety of the vehicle.

I had the same problem which was diagnosed incorrectly 3 times
Could be one of 2 things you may want to check
Have a tech read your codes
Have the ABS Control Module checked by a technician. If that is ok then make sure they look at the altenator
In my case, I was getting voltage spikes that were shorting out system controls -the ABS Control Module and the battery, etc. Once they put in a new altenator, the problem was fixed.

ABS SPEED SENSOR

you have wheel sensors on all four wheel assemblies,if the light is comming on have your brakes ckecked.

You need to have an abs code scanner hooked up to it to find out why the light is on. If there is an advanced auto or an autozone parts store near you, go there, they can hook up one for free, takes about a minute, if not, you'll have to pay somewhere else, and it isn't cheap.

99% Bad ABS Module.

Unless you have a cut ABS wheel sensor.
I fix them my self.

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Your car had been designed to work with ABS brakes, if ABS is not working brakes performance can be badly affected, particularly at high speed.
To keep the vehicle safety to standards the ABS should be inspected. At a qualified garage they can connect to ABS system, get an error code in return and diagnose the problem.
Check relays first.

remove positive battery terminal for 30 seconds

try a sqirt of wd 40 into the barrel and also down the shift lock mechanism

Sounds like a blown Head Gasket or cracked Engine Block.

It will cost well over $250 through a Volvo Dealer just for the Fob and that is the only way to do it. Volvo should be able to sell you a new key but they will need your Vin Number.

Check out IPD, they have how to videos on U-Tube.

Inside the Driver's compartment in the foot well just forward of the Driver's Door on the side. It is right about where your left Calf would be while driving. It is a handle that you pull back towards the back of the car.

plug, wires and also could be the distributor cap.

Check power coming into coil! If power coming in then coil is faulty!

They are on the ac lines on high and low lines probably close to the condenser anf compresser