Hi all I hope someone can throw some light on this for me. I recently bought a P38 4.6 1996 automatic & it broke down on the way home. Rev counter & speedo fluctuations & engine holding back, the car wouldn't restart after turning off so I fitted a new battery & car drove home fine. The car wasn't charging & fuse box smelt hot and initially had no battery light until I fitted the new battery. I replaced the alternator and the car is now charging but goes flat over night. I checked for current drain 0.05amp. Charging battery relays 18 & 19 got hot. The result from the electric sticky tests are
Engine off full load 30sec 11.31v, voltage across battery at ldle no load 13.87, voltage across battery 2000 rpm no load 13.86,voltage across battery 2000 rpm full load 13.37, voltage at alternator 2000 rpm 14.31, voltage drop ody & battery neg 0.18, voltage drop alt pos & battery pos 0.8, voltage drop battery neg & 1st ground 0.06, 1st ground & block 0.10, alt housing & block 0.00, alt pos & alt housing 12v? Surely that can't be right? I'm confusing myself now.
Is alternator faulty & what could have caused my initial problems? Also srs light is on but I suspect that's a separate issue but just in case thought I'd mention it. Oh and there is battery voltage on the brown & yellow wire to the alternator, is this from the becm? If I connect a bulb from the terminal on alternator this goes to and poss terminal of battery the bulb illuminated until engine started then goes out, once turned of it comes on again.
Sorry if this reads rushed but I spent ages typing it out just now & the system timed out & I lost everything & had to start again.
Mark ( newbie)