![]() |
|
|
|
#1
|
||||
|
||||
AL129X Voltage Issue...Regulator?
Hey everyone,
On my 420SEL. I replaced the stock alt with a AL129X rebuilt from AutoZone...first replacement unit had a bad bearing.. after a week I replaced it with a replacement unit.. Now a week later..the car is dead. Battery read 7V across it. I throw on the charger..a few hours later I get the car started. I measured battery voltage at 11.9V..clearly no alt. I measure from the alt's power cable at the distribution block to ground...26V! I performed continuity tests between the battery's positive terminal and the upper half of the two post distribution point.. got continuity there but nothing between the battery and the lower point... WEIRD. So I remove the alt's cable and check voltage..50V! I think the regulator is..broken. Anyone know the replacement regulator part number for the AL129X?
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out. Check here for compatibility, diagnostics, and availability! (4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!) 82 300SD 145k 89 420SEL 210k 89 560SEL 118k 90 300SE 262k RIP 5/25/2010 90 560SEL 154k 91 300D 2.5 Turbo. 241k 93 190E 3.0 235k 93 300E 195k |
Bookmarks |
|
|