RAD Merc SVT
CEG'er
99 Mercury Mystique 3L port-matched NPG tune, Optima Yellow Top, sound system.
Here is the scenario. About three weeks ago my amp kept turning on and off randomly, I found it was going into protection mode because it was seeing over 16v. I measured voltage at the battery. Engine off: 13.2v, engine idle: 15.5-16.1v engine idle with sound system disconnected (in case it was creating a heavy load) still 15.5-16v.
Battery is good, I assumed the voltage regulator or something in the alt. was bad so I replaced alt. with a new one. Started it up measured voltage still 15.5v and my amp is still turning off randomly so it's still getting above 16v. I had the old one tested and it failed anyways making me think the new alternator/regulator is bad. Before I pull it off and have it tested I was wondering if anybody has any ideas on what else it could be. I think it's weird that both alternators are doing the exact same thing. So the new one is in now with the same problem but now the charging system light is on and it wasn't before.
On another note after I built the 3L and put it in my datalogs show 13.8v so it was working
Thanks for the help I've been struggling with this one for a while
Here is the scenario. About three weeks ago my amp kept turning on and off randomly, I found it was going into protection mode because it was seeing over 16v. I measured voltage at the battery. Engine off: 13.2v, engine idle: 15.5-16.1v engine idle with sound system disconnected (in case it was creating a heavy load) still 15.5-16v.
Battery is good, I assumed the voltage regulator or something in the alt. was bad so I replaced alt. with a new one. Started it up measured voltage still 15.5v and my amp is still turning off randomly so it's still getting above 16v. I had the old one tested and it failed anyways making me think the new alternator/regulator is bad. Before I pull it off and have it tested I was wondering if anybody has any ideas on what else it could be. I think it's weird that both alternators are doing the exact same thing. So the new one is in now with the same problem but now the charging system light is on and it wasn't before.
On another note after I built the 3L and put it in my datalogs show 13.8v so it was working
Thanks for the help I've been struggling with this one for a while