HELP!! Bad Voltage Regulator?

[Ricky Bobby]

What is the range test 9 reads on the OBC while driving with the new alternator?

[e30cabrio]

That is the volt low I was talking about.

The fluke reads 14.2 - 14.9 running. (not moving)

Test 9 reads 13.2- 13.9.

On the drive to the mechanic, after trickling for 2 days before I started it the fluke read 14.7, test 9 13.5.

After I started it, fluke 13.8, test 9 12.3.

It got down to 11.3 on the 12 mile drive but ran fine and started normally with normal crank speed.

The battery light is off and hopefully that is the end of electrical issues.

[Ricky Bobby]

If test 9 reads between 13-14 volts I think its perfectly fine, that should indicate a healthy alternator (at least that's what I have read)

Your fluke might be off a volt, test 9 seems to be pretty accurate from what I read. Hope your electrical issues are over!

[e30cabrio]

The fluke is 20 years old but top of the line. I use it critically and have it checked every few years. It is 99.9 % accurate.

Thanks, I hope this is the end of issues for some time. (mechanic said it needs a trans mount which I ordered).

[MPDano]

Yeah, had a very similar issue with my wifes X5 with all kinds of weird errors. Trans Failsafe, etc. This was 4 years ago and I replaced the battery and alternator and have been free of issues up until last weekend. Already replaced battery but still having issues. Next is the Alternator and I'm sure my problems will go away.

Also, our X5 has to be warmed up for a few minutes or the tranny slips bad. I too don't believe about the lifetime trans fluid. Gonna look into replacing the filter/fluid soon.

[bcredliner]

Originally Posted by MPDano

Yeah, had a very similar issue with my wifes X5 with all kinds of weird errors. Trans Failsafe, etc. This was 4 years ago and I replaced the battery and alternator and have been free of issues up until last weekend. Already replaced battery but still having issues. Next is the Alternator and I'm sure my problems will go away.

Also, our X5 has to be warmed up for a few minutes or the tranny slips bad. I too don't believe about the lifetime trans fluid. Gonna look into replacing the filter/fluid soon.

Your transmission is slipping and you have a trans failsafe--why do you think the problem is the battery or the alternator?

Have you done any troubleshooting or had the computer read for faults?

[MPDano]

Originally Posted by bcredliner

Your transmission is slipping and you have a trans failsafe--why do you think the problem is the battery or the alternator?

Have you done any troubleshooting or had the computer read for faults?

...because the trans slipping has been going on for over two years, that's why. It's not related.

[bcredliner]

I read your post again. I see you weren't asking for input. OOPSIE

[MPDano]

Originally Posted by bcredliner

I read your post again. I see you weren't asking for input. OOPSIE

Oh boy, always one on every forum

[bcredliner]

Originally Posted by MPDano

Oh boy, always one on every forum

I was merely trying to help.

Your first response to my post sounded defensive that is why I read your original post again and then interpreted you weren't asking a question you were commenting that battery didn't fix the problem but you are sure the alternator will.

OOPSIE was intended as an apology for suggesting you needed help when your post didn't ask for it.

Your post is entirely out of line.

Yes, there is always one on every forum.