5 replies to this topic

[399Road]

OK, not a question, as I've had this on my old GTE a few years ago and have been putting up with the same thing on the Ascona for about a year now. If I switched my heated rear window on , then everything was ok for a few seconds and then the battery light would start glowing and get brighter with engine revs. This seemed to be worse if the weather was damp and you ended up either having only the windscreen demister or the heated rear window on at one time. I cleaned up the earth for the HRW and replaced the switch but it was still the same. In the end I've cut the B+( Battery Positive ) terminal off the Alternator's wiring and refastened it with a new terminal to the Alternator. Now it's perfect, so I thought I'd share this on here in case anyone elses Manta had this similar annoying fault. Two minutes and five pence later and I've fixed the stupid fault I've been putting up with for a year now.   ...Luke

[mantadoc]

If you have the older Rallye 6 clock dash that used the same type of gauge as the oil gauge, not a cheap slow bi-metallic strip one like the later dashes you see the volt drop as soon as you flick the switch.


One of these things is not like the others, one of these things is not the same................

[cam.in.head]

yes & you can also get this symptom if the main 12v supply wire to the car fusebox/ign switch has a bad connection (6mm wire on large starter terminal  along with main pos battery lead)if this lug is not perfect then the alternator output voltage will be much higher than the rest of the voltage in the car & cause the ign lamp to glow(brighter as more things are switched on)

[BoXXerRACE]

i get this on my GTE since i had a new alternator fitted, but it did it when the old one was dying too. doesn't help that my volt gage is on the ropes as well.

[cam.in.head]

BoXXerRACE, on 30 January 2012 - 11:13 AM, said:

i get this on my GTE since i had a new alternator fitted, but it did it when the old one was dying too. doesn't help that my volt gage is on the ropes as well.

if you run a wire from the battery positive to the positive on the wire that goes up to the ign switch & the glowing lamp dissapears then this will prove you have a bad connection somewhere.

[BoXXerRACE]

the car needs a full re-wire (amongst other things) once i have a garage to do it all in and a little jimny to replace it as my daily driver. so i'm not too bothered about haunted gages at the mo, as long as she keeps trooping on until i can retire her for a full rebuild.