altanator'ssss ! grrrr

[stu89]

just wondering if u can help me figure somthin out. i got a 1996 calibra ecotech with air con, and the altanator went the other day. they sent me a 70amp one which was the same as the one that was on it. But if i load it up whilst running ie. heated seat, heated window and mirrors + lights and that, It makes the battery light faintly glow and volt gauge drop to like 10 volts + the idle speed changes (revving its self). they gave me a choice of a 70amp or 120amp. but the one that was on there was a second hand one because its got calibra wrote on it, so i fort someone could have put the wrong one on it in the first place. ive put new earth straps on the engine and it never helped. Any ideas??????

cheers stu.

[RobbieV]

70amp Alt is the correct one for your car, as for the loading i get the same with mine which i think is normal.

[stu89]

o right. thanks

[vaggelis00]

i have the same problem. i am using a new 120amp alternator but when everything is on the red battery light starting to glow a little. i would appreciate if somebody can give a solution to this problem

[vaggelis00]

finally i solved my problem with low volts. it was an earth wire just under the distributor that goes to the chassis . now the car is running cooler and it has more power

[phenoxymethyl]

I ahd same with my last car, headache!