Possible voltage regulator issue? - 00447 - Function Limitation due to Over-Voltage

[AdamInKC]

Went to the track this evening and the staging lines were pretty long, so had the car idling with the heat on to keep IAT's low. After 20-25 mins, 3 lights lit up on my dash (ABS, Traction Control and not sure on the 3rd). Essentially, car went into 'limp' mode and kept running but at an increase idle speed and throttle input was sketchy. I pulled to the side and checked codes. After clearing codes, the car ran fine but this occurred a second time later after idling for awhile. It seems it happens when the car is running warm and I am using a lot of accessories.

My best guess after searching the forum is my voltage regulator on the back of the alternator is on it's last leg. I see a spike of 16.96v below and several '00447 - Function Limitation due to Over-Voltage' errors.
If this is the issue, I will go ahead and order this: https://www.ecstuning.com/b-genuine-...or/06e903803t/

My 2012 S4 has 63k miles and I replaced the battery about 6 months ago. Battery shows fully charged in MMI.

Here are my codes... would greatly appreciate feedback.

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: Malfunction 0010
03-ABS Brakes -- Status: Malfunction 0010
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: Malfunction 0010
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
10-Park/Steer Assist -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: Malfunction 0010
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
22-AWD -- Status: Malfunction 0010
36-Seat Mem. Drvr -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
55-Headlight Range -- Status: Malfunction 0010
56-Radio -- Status: Malfunction 0010
5F-Information Electr. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
6C-Back-up Cam. -- Status: Malfunction 0010
72-Door, Rear Right -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CCBA) Labels:. 06E-907-551-CAK.clb
Part No SW: 8K0 907 551 D HW: 8K0 907 551 A
Component: 3.0T SIMOS84 H08 0003
Revision: --H08---
Coding: 0104000A240F0128
Shop #: WSC 06324 000 00000
ASAM Dataset: EV_ECM30TFS0218K0907551D 001003
ROD: EV_ECM30TFS0218K0907551D.rod
VCID: 323E100CD4AFF107B4C-8066

1 Fault Found:
6619 - Implausible Data Received from ABS Control Module
U0415 00 [096] - -
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 102336 km
Date: 2018.05.04
Time: 21:31:49

Engine speed: 946.00 /min
Normed load value: 18.4 %
Vehicle speed: 0 km/h
Coolant temperature: 77 °C
Intake air temperature: 61 °C
Ambient air pressure: 980 mbar
Voltage terminal 30: 16.960 V
Unlearning counter according OBD: 40
Engine speed: actual: 928 /min
MAF_ENVD: 228.77646 mg/stroke
Coolant temperature (unfiltered): 78.0 °C
Engine: operating status: IS
Engine load: 18.359375 %
Vehicle speed: actual: 8 km/h

Readiness: 0000 1100

-------------------------------------------------------------------------------
Address 02: Auto Trans (J217) Labels:| 0B5-927-156.clb
Part No SW: 8K2 927 156 S HW: 0B5 927 156 F
Component: 0B5 30TFSINAR H10 0003
Revision: --H10--- Serial number: 0000000524
Coding: 000001
Shop #: WSC 06325 000 00000
ASAM Dataset: EV_TCMDL501 A02087
ROD: EV_TCMDL501.rod
VCID: 46D65CDC48277DA7084-8012

2 Faults Found:
8007 - No Communications with Steering Angle Sender (G85)
U0126 00 [032] - -
[Lost Communication With Steering Wheel Angle Sensor Control Module]
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 1
Reset counter: 40
Mileage: 102336 km
Date: 2018.05.04
Time: 21:31:52

Engine speed: 951 /min
Transmission input speed: 951 /min
Transmission output speed: 0 /min
Engine torque: 20 Nm
Transmission fluid temperature: 60 °C
Accelerator position: 0.0 %
Clutch status: Kupplung 1 kann Moment übertragen

8015 - Steering Column Control Module
U0212 00 [032] - No Communications
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 1
Reset counter: 40
Mileage: 102336 km
Date: 2018.05.04
Time: 21:31:52

Engine speed: 893 /min
Transmission input speed: 893 /min
Transmission output speed: 0 /min
Engine torque: 44 Nm
Transmission fluid temperature: 60 °C
Accelerator position: 0.0 %
Clutch status: Kupplung 1 kann Moment übertragen


-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104) Labels:. 8K0-907-379-V1.clb
Part No SW: 8K0 907 379 BJ HW: 8K0 907 379 BJ
Component: ESP8 quattro H04 0060
Revision: -------- Serial number: --------------
Coding: 290D1A
Shop #: WSC 06324 000 00000
VCID: 025E80CC240F818764C-8056

2 Faults Found:
00447 - Function Limitation due to Over-Voltage
001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 1
Fault Frequency: 1
Reset counter: 58
Mileage: 102336 km
Time Indication: 0
Date: 2018.05.04
Time: 21:31:49

Freeze Frame:
Hex Value: 0x0540
Hex Value: 0x4002
Hex Value: 0x0203
Hex Value: 0x22D2
Hex Value: 0x00FF

01324 - Control Module for All Wheel Drive (J492)
013 - Check DTC Memory - Intermittent
Freeze Frame:
Fault Status: 00101101
Fault Priority: 4
Fault Frequency: 1
Reset counter: 58
Mileage: 102336 km
Time Indication: 0
Date: 2018.05.04
Time: 21:31:49

Freeze Frame:
Hex Value: 0x0040
Hex Value: 0x5702
Hex Value: 0x0228
Hex Value: 0x50D4
Hex Value: 0x00FF


-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J393) Labels:. 8K0-907-064-05.clb
Part No SW: 8K0 907 064 CG HW: 8K0 907 064 CG
Component: BCM2 2.0 H05 0435
Revision: 00002001
Coding: 0D0100
Shop #: WSC 06325 000 00000
VCID: 77A8E1187FCDD42F432-8022

Subsystem 1 - Part No SW: 8K0 905 852 D HW: 8K0 905 852 D
Component: J764 ELV MLB H37 0042
Serial number: 2311000204692016

1 Fault Found:
00447 - Function Limitation due to Over-Voltage
001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 2
Fault Frequency: 1
Reset counter: 58
Mileage: 102336 km
Time Indication: 0
Date: 2018.05.04
Time: 21:31:40


-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255) Labels:. 8Tx-820-043-3Z.clb
Part No SW: 8T1 820 043 AQ HW: 8T1 820 043 AQ
Component: KLIMA 3 ZONEN H08 0180
Revision: C1000000 Serial number: 01290920111149
Coding: 66002000
Shop #: WSC 06325 123 12345
VCID: 005A8AC42A039397728-8054

1 Fault Found:
00447 - Function Limitation due to Over-Voltage
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 2
Fault Frequency: 2
Reset counter: 58
Mileage: 102336 km
Time Indication: 0
Date: 2018.05.04
Time: 21:31:40


-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels:. 8K0-907-063.clb
Part No SW: 8K0 907 063 P HW: 8K0 907 063 P
Component: BCM1 1.0 H30 0392
Revision: 10030001 Serial number: 00000001067459
Coding: 26009015003CAF212700000300003D0D4F9CD2480201016100 0000
Shop #: WSC 22102 444 13595
VCID: 3C223E34066B37776E0-8068

Subsystem 1 - Part No SW: 8K1 955 119 A HW: 8T1 955 119 Labels: 1KX-955-119.CLB
Component: WWS 280911 H07 0070
Serial number: SWF11090286835
Coding: 00FD11

Subsystem 2 - Part No SW: 8K0 955 559 HW: 8K0 955 559 Labels: 8K0-955-559.CLB
Component: RLS H04 0003
Serial number: 11692439
Coding: 025028

Subsystem 3 - Part No SW: 8K0 941 531 AS HW: 8K0 941 531 AS
Component: E1 - LDS H03 0031
Serial number: 00000000002409110483

Subsystem 4 - Part No SW: 8K0 907 410 C HW: 8K0 907 410 C
Component: HOMELINK H01 0010

1 Fault Found:
00447 - Function Limitation due to Over-Voltage
001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 6
Fault Frequency: 2
Reset counter: 58
Mileage: 102336 km
Time Indication: 0
Date: 2018.05.04
Time: 21:31:00


-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446) Labels:. 8K0-919-475.clb
Part No SW: 8K0 919 475 T HW: 8P0 919 475 M
Component: PARKHILFE 4K H01 0081
Revision: 11001001 Serial number: 36861127003530
Coding: 20010D
Shop #: WSC 06325 000 00000
VCID: 4ACE68EC5CBF99C7ECC-801E

1 Fault Found:
00447 - Function Limitation due to Over-Voltage
001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 6
Fault Frequency: 2
Reset counter: 58
Mileage: 102336 km
Time Indication: 0
Date: 2018.05.04
Time: 21:31:43

Freeze Frame:
Temperature: 27.0°C


-------------------------------------------------------------------------------
Address 15: Airbags (J234) Labels:| 8K0-959-655.clb
Part No SW: 8K0 959 655 K HW: 8K0 959 655 K
Component: AirbagVW-AU10 H44 0610
Serial number: 003GLD0P2YD+
Coding: 303837354230303030304A55304C384B3053
Shop #: WSC 06325 000 00000
ASAM Dataset: EV_AirbaECUVWAUDI010 003010
ROD: EV_AirbaECUVWAUDI010_003_AU48.rod
VCID: 45D45BD0752176BF01E-8010

Seat occupied recognition:
Subsystem 1 - Part No SW: 8K0 959 339 C HW: 8K0 959 339 C
Component: BF-Gewichtss. H02 0040
Serial number: 5810000R1100004AC3

Crash sensor for side airbag: driver side:
Serial number: 6334MSME65022C3AD

Crash sensor for side airbag: front passenger side:
Serial number: 6344MSME6501514D9

Crash sensor for side airbag: rear: driver side:
Serial number: 6352QSME39602F48O

Crash sensor for side airbag: rear: passenger side:
Serial number: 6362QSME3C602D52L

Crash sensor for front airbag: driver side:
Serial number: 63732SME5E5F2C78O

Crash sensor for front airbag: front passenger side:
Serial number: 63832SME4A625760/

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527) Labels:. 8K0-953-568.clb
Part No SW: 8K0 953 568 G HW: 8K0 953 568 G
Component: Lenks.Modul H17 0014
Revision: -------- Serial number: 90372KIK0001W
Coding: 000036
Shop #: WSC 06325 000 00000
VCID: 3E26343C10772567404-806A

Component: E221 - MFL H02 0010

1 Fault Found:
00447 - Function Limitation due to Over-Voltage
001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 6
Fault Frequency: 1
Reset counter: 58
Mileage: 102336 km
Time Indication: 0
Date: 2018.05.04
Time: 21:31:53


-------------------------------------------------------------------------------
Address 17: Instruments (J285) Labels:. 8T0-920-xxx-17.clb
Part No SW: 8K0 920 981 Q HW: 8K0 920 981 Q
Component: KOMBIINSTR. H12 0258
Revision: 00000000 Serial number: EJG56X2AC
Coding: 831F09008300D705020000
Shop #: WSC 22102 444 13595
VCID: 41DC4FC061895A9F3D6-8014

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533) Labels:. 8T0-907-468.clb
Part No SW: 8T0 907 468 AD HW: 8T0 907 468 K
Component: GW-BEM 4CAN-M H09 0117
Revision: EC000056 Serial number: 5600E1191302F2
Coding: 00C303
Shop #: WSC 06325 000 00000
VCID: 035085C83B15888F6FA-8056

Subsystem 1 - Part No SW: 8K0 915 181 E HW: 8K0 915 181 E
Component: J367-BDM H07 0170
Serial number: 11039382160911

No fault code found.

-------------------------------------------------------------------------------
Address 22: AWD (J492) Labels: 8K0-907-163.clb
Part No SW: 8K0 907 163 A HW: 8K0 907 163 A
Component: 4 Wheel Drive H13 0025
Serial number: 002009110001030
ASAM Dataset: EV_AllWheelDiffeQSPCAN 003016
ROD: EV_AllWheelDiffeQSPCAN.rod
VCID: 2E06047CC097D5E7D04-807A

1 Fault Found:
0253 - Function Restricted due to Exessive Voltage
U1401 00 [008] - -
[12V Überspannung CAN Spannungsdiagnosegrenze DTC_CAN_HIGH_VOLTAGE]
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Reset counter: 58
Mileage: 102336 km
Date: 2018.05.04
Time: 21:31:49


-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr (J136) Labels:. 8T0-959-760.clb
Part No SW: 8K0 959 760 D HW: 8K0 959 760 D
Component: MEM-FS H06 0074
Revision: AA000000 Serial number: 00000013692451
Coding: 00581B00000000000000
Shop #: WSC 06325 000 00000
VCID: 3B203D280365304F67A-806E

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386) Labels:. 8K0-959-793.clb
Part No SW: 8T0 959 793 M HW: 8T0 959 793 D
Component: TSG FA H08 1501
Revision: -------- Serial number: --------------
Coding: 011C13204E00410001
Shop #: WSC 06325 000 00000
VCID: 53F075888BF5D80F9FA-8006

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. (J393) Labels:. 8K0-907-064-46.clb
Part No SW: 8K0 907 064 CG HW: 8K0 907 064 CG
Component: BCM2 2.0 H05 0435
Revision: 00002001 Serial number: 0159531123
Coding: 0106063A003A440582B0013200000000
Shop #: WSC 06342 123 12345
VCID: 77A8E1187FCDD42F432-8022

Subsystem 1 - Part No SW: 8K0 959 719 B HW: 8K0 959 719
Component: GTO BF H01 0070
Serial number: 00000000000000439454

Subsystem 2 - Part No: 1K0 951 605 C
Component: LIN BACKUP HO H05 1501

Subsystem 3 - Part No SW: 8K0 959 591 B HW: 8K0 959 591
Component: J245 PS050 H08 0043

No fault code found.

-------------------------------------------------------------------------------
Address 47: Sound System (J525) Labels:. 8T0-035-223-BOM.clb
Part No SW: 8T0 035 223 AN HW: 8T0 035 223 AK
Component: DSP Prem H10 0190
Revision: 00010001 Serial number: 34804010066002
VCID: 7AAEF82C4CDFC9473CC-802E

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387) Labels:. 8K0-959-792.clb
Part No SW: 8T0 959 792 M HW: 8T0 959 792 D
Component: TSG BF H08 1501
Revision: -------- Serial number: --------------
Coding: 011C13204E00410001
Shop #: WSC 06325 000 00000
VCID: 52FE708CB4EFD10794C-8006

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake (J540) Labels: 8K0-907-801-V1.clb
Part No SW: 8K0 907 801 H HW: 8K0 907 801 H
Component: EPB Audi B8 H09 0100
Revision: 00000003 Serial number: 00000001020978
Shop #: WSC 00000 000 00000
VCID: 343216142E3BFF37A60-8060

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range Labels: 8K0-907-357.clb
Part No: 8K5 907 357 B
Component: Dynamische LWR H01 0010
Revision: 00000001 Serial number:
Coding: 0000004
Shop #: WSC 06325 000 00000
VCID: 392C27200559025F756-806C

1 Fault Found:
00447 - Function Limitation due to Over-Voltage
001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 2
Fault Frequency: 1
Reset counter: 58
Mileage: 102336 km
Time Indication: 0
Date: 2018.05.04
Time: 21:31:42


-------------------------------------------------------------------------------
Address 56: Radio (R) Labels: Redir Fail!
Part No SW: 4G0 035 082 G HW: 4G0 035 082
Component: Radio U SIRIU H53 0133
Revision: AB001007 Serial number: 156I50B7555099
Coding: 020007010000000001
Shop #: WSC 06325 000 00000
VCID: 2412E6549EDB6FB7360-8070

1 Fault Found:
02984 - Connection between Impedance Converter 2 and Window Antenna
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 5
Fault Frequency: 1
Reset counter: 18
Mileage: 102334 km
Time Indication: 0
Date: 2018.05.04
Time: 19:39:52

Freeze Frame:
Voltage: 12.50 V


-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794) Labels:. 4E0-035-6xx-5F.clb
Part No SW: 8T1 035 664 F HW: 8T1 035 664 B
Component: H-BN-NA H52 0189
Revision: -------- Serial number: 490I$0B7641724
Coding: 010200000206E1EF45000F0E000000030000
Shop #: WSC 06325 123 12345
VCID: 3B203D280365304F67A-806E

Subsystem 1 - Part No: 8R0 060 884 CA
Component: NAR 2014 1002

Subsystem 2 - Part No SW: 8R0 919 604 HW: 8R0 919 604
Component: DU7 High H41 0104
Serial number: A130I00BS024306

Subsystem 3 - Part No SW: 8T0 919 609 G HW: 8T0 919 609 G
Component: E0380 Bedient H08 0100
Serial number: 00000000945154

Subsystem 4 - Part No: 8R0 060 961 A
Component: CD-Database 2712

No fault code found.

-------------------------------------------------------------------------------
Address 62: Door, Rear Left (J388) Labels:. 8K0-959-795.clb
Part No SW: 8T0 959 795 N HW: 8T0 959 795 B
Component: TSG HL H06 1501
Revision: -------- Serial number: --------------
Coding: 010C13204000210001
Shop #: WSC 06325 000 00000
VCID: 56F68C9C9807CD27784-8002

No fault code found.

-------------------------------------------------------------------------------
Address 6C: Back-up Cam. Labels: 8T0-907-441.clb
Part No SW: 8T0 907 441 C HW: 4L0 907 441 B
Component: J772__Rearview 0040
Revision: --H05--- Serial number: 525PA8-J14902G
Coding: 1000006
Shop #: WSC 06325 000 00000
VCID: 382A22243E531B578A8-806C

1 Fault Found:
00447 - Function Limitation due to Over-Voltage
001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 3
Fault Frequency: 1
Reset counter: 58
Mileage: 102336 km
Time Indication: 0
Date: 2018.05.04
Time: 21:31:48

Freeze Frame:
Term 15 On
Reverse OFF
Count: 3


-------------------------------------------------------------------------------
Address 72: Door, Rear Right (J389) Labels:. 8K0-959-794.clb
Part No SW: 8T0 959 795 N HW: 8T0 959 795 B
Component: TSG HR H06 1501
Revision: -------- Serial number: --------------
Coding: 010C13204000210001
Shop #: WSC 06325 000 00000
VCID: 56F68C9C9807CD27784-8002

No fault code found.

End----------(Elapsed Time: 01:55, VBatt start/end: 12.3V/12.3V)-----------

[LYKUNO]

As noted in the ECS link you provided: "A good way to check for a faulty voltage regulator is to use a digital multimeter on the battery, with the engine running, to read the charging voltage. If voltage is not constant around 13 to 14 volts, chances are the voltage regulator has gone out."

Have you take that step to measure the actual voltage the regulator is putting out? I would recommend checking it at idle and with some throttle applied, to see whether the voltage reading is stable at various RPMs. Many digital voltmeters will capture and record "peak" readings (i.e., spikes), that you might not otherwise see on an analog voltmeter.

You also mentioned having the battery replace recently. Did you install it yourself or have someone else do it? Have you verified the battery connection to be solid/tight and clean? A loose battery connection could be a problem that you don't want to overlook before dropping ~$200 on a new regulator.

[AdamInKC]

As noted in the ECS link you provided: "A good way to check for a faulty voltage regulator is to use a digital multimeter on the battery, with the engine running, to read the charging voltage. If voltage is not constant around 13 to 14 volts, chances are the voltage regulator has gone out."

Have you take that step to measure the actual voltage the regulator is putting out? I would recommend checking it at idle and with some throttle applied, to see whether the voltage reading is stable at various RPMs. Many digital voltmeters will capture and record "peak" readings (i.e., spikes), that you might not otherwise see on an analog voltmeter.

You also mentioned having the battery replace recently. Did you install it yourself or have someone else do it? Have you verified the battery connection to be solid/tight and clean? A loose battery connection could be a problem that you don't want to overlook before dropping ~$200 on a new regulator.

I confirmed it is the voltage regulator by reproducing the issue (left idling for an extended period of time). Got the warning lights/beeping in the cabin and measured voltage at 18.6 at the battery terminals. New regulator has been ordered. Hoping this is not a PITA to install!

[Ch13f]

Hello,

Just ran into the same issue. Same codes and over voltage recorded at between 16 and 18.6 volts.
Did replacing the voltage regulator correct the issue? How difficult was the install/replacement?

Thanks

Luis

[JasonHood]

I have the same issue. My issue is reproduced by flooring it and coming to a quick stop (floored it today to get around a truck and caught a redlight). Voltage spiked to 15 and went into self preservation mode. Same codes. Weird thing is, this only happens when its really hot outside.

[AdamInKC]

Yes, replacing the voltage regulator fixed the issue on my car. It was not an easy job, since the alternator must be removed from the underside of the car. Did not own a car lift at the time I did this, but now I do so it would be much easier.

[Ch13f]

Great. Will buy voltage regulator and replace. Is replacing straightforward with some difficulty? I have ramps and access to a lift if necessary.
Thanks again.

Luis

[Ch13f]

So...replaced voltage regulator and issues are now corrected. Brushes were very worn down on old regulator compared to the new regulator. I used ECS vid on getting car into service position and asked for advise from forum members. Car on jacks, wheels turned. Thank you all.

There were two surprises for me.First the socket for accessory pulley tensioner was 17mm, I was tracking 16mm. Anyway this worked for me.
Second I was humming along taking the four alternator bolts off when I saw a mounting bracket coming down at me straight for my face. It did not hit me but I was surprised. So...the alternator mounts to this bracket which also acts as the mounting base for the supercharger belt tensioner.

Fun fun. Saved me some funds and I now know how to replace alternator, voltage regulator, belts, tensioner, and put car in service position. :)

[sivletho]

Sorry to revive from the dead but I’m having issues with the charging system.
Is it normal for the voltage to battery to take 1-2 min to get to 13.7v on startup or does it need to be instant?

Already replaced voltage regulator and new aftermarket battery.


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