1999 V70XC Starts but throttle not working SRS ABS Skid lite

[abscate]

You can't put that much charge into a battery in 10 minutes, and voltage is not a good diagnostic of battery state anyhow. It would be worth putting it on a slow charge over 24 hours and seeing if you can bring it back to full charge. The voltage will read artificially high for a few minutes after charging, and you might just be consuming the charge running it.

Maybe haul the battery to AutoZone and have them charge and test it (and ignore the sales pitch for the O2 sensor)

[richc233]

I found a Bosch part that looks like the one from the link to eBay above, from Eeuroparts http://www.eeuroparts.com/Parts/63211/V ... r-8697015/, but their reference only shows it for newer V70's after 2005. Does anyone have a better reference? I ordered it and they are shipping it to me today, but I wanted to be sure before I install.

Thanks,
Rich

[precopster]

Battery is NOT a suspect here, YET. Even a DEAD battery with 6V or less will allow the charging system to output 13.5 to 14.3 volts.

You need to stop getting swayed away from charging system for the time being. Battery cables can have 1V or 1.5V drop NOT varying drop such as your case. The 2005 plus regulator is the wrong one as the alternator part number was superceded in 2005.

Use the Irish regulator's FOOM part number references in that eBay listing to find a local regulator in the USA.

Once the charging system is repaired just jump start and test output while engine is running then go for a long drive 45mins plus to recharge the battery.
As you can see I DID warn you that the battery would drop down again in voltage even while engine is running so this is a 100% charging system problem so far.

Later you can get the battery tested but firstly address the regulator.

[richc233]

Thanks MIke. I do understand the I am not getting proper charge from the alternator at 9v, I was just trying to get an opinion on the battery at the same time to try to get it fixed over the weekend. They are shipping the regulator to me - if it fits do you think it will work properly? I can't find a good cross reference for the part number and Eeuroparts said they could probably find out by Monday but felt it looked the same so it should work.

Thanks,
Rich

[precopster]

As I stated in my last post the regulator you chose is the WRONG ONE. You need a 1999-2004 regulator. When you enter your vehicle into Europarts site it clearly states the one you chose doesn't suit. It may fit but may cause electrical issues or damage the diodes in the alternator.

The actual number FOOM 145229 not 1452299 as in the Irish site. Also FOOM 145352 suits your car

Also Tasca (Volvo dealer) states is incorrect: http://www.tascaparts.com/oe-volvo/8697015.

CORRECT OEM is 8637851

[richc233]

I pulled the alternator and it looks like I will need to replace it. The lower slip ring is worn, where the upper one is basically smooth the lower is worn and has a ridge. The lower brush is also more worn, about 1/16 inch. I am surprised that it is like this as it is a 1999 but only has about 50K miles on it. I guess I am lucky that eEuroparts didn't get the regulator out in time on Friday, as now I can change the order to the Alternator!

I also tried to test the regulator with an ohm meter but am not sure how it should read. The one upper brush reads about .9 ohm to the larg brass ring/connection but the other brush doesn't seem to connect to the other connection or ground - though I don't know if it should. Also, connecting to the 2 slip rings I get a short.

Does this sound like the right thing to do? I am not a pro but it seems like if I just replace the regulator it still may not work and even if it does it probably won't last long.

Thanks,
Rich

[precopster]

No one here is an alternator rebuilder.....but out of 50 or so posts where alternator has failed a new regulator has fixed it in 100% of cases.

Slip rings are $5 .....worth a try

If the new regulator has even brushes the gouge in the slip ring shouldn't matter. Guess it boils down to time and need.