- Apr 9, 2012
- 64
I went to Advance Auto to get a quick check done on my alternator. The gauge was fluctuating quite a bit but not consistently so I thought the stepper might be bad. I had to the stepper for the tach and speedo anyway so I'd replaced them all. The gauge settled down a lot but I still wondered so when I had the alternator out when changing the tstat I brought it to be tested. It improved when i disabled the DRL per the instructions here. Ironically they didn't have the proper bracket for the machine and couldn't jury rig it well enough for a good test. The guy said he could test in the vehicle. I thought it didn't work as well but whatever. I put everything back together and went back, got this result. Alt seems to be OK but what the heck is ripple?
![108A2389-CD7C-4F81-A21B-87C365CB6B89-1636-000001A6088859CE_zps94cc3668.jpg](http://i906.photobucket.com/albums/ac266/cableguy2368/108A2389-CD7C-4F81-A21B-87C365CB6B89-1636-000001A6088859CE_zps94cc3668.jpg)