flashes intermitantly approx once a week,have checked battery,12.8V,alternator charging.14.4V,drive belt tight. 2003 Mitsi Diamante 3.5 Any suggestions appreciated
quickbuck,
Jun 28, 12:52am
Either a loose earth off the back of the alternator, or fluid getting in the alternator. For us it was power steering fluid getting into the alternator. Not a Mitsi though.
ridiculousness,
Jun 28, 2:37am
From memory I think when the light flickers it is one of the brushes either worn out and/or not contacting the slip ring properly.
ridiculousness,
Jun 28, 2:37am
inside the alternator of course.
frank1,
Jun 28, 4:08am
Would have thought that if brush not contacting,dash light would be on all the time,anyway will check earth on alternator tomorrow--neighbours car,only done 130 clicks.
ridiculousness,
Jun 28, 4:42am
Yeah I should have said not contacting 'properly' which means it is contacting but the brush is not being pushed against the slip ring with the force it should have pushing against it. It has either lost tension through jamming in the carrier or through wear. The light flickers now and again.
franc123,
Jun 28, 5:44am
See what the charging voltage is doing at the time when its flicking, it could be a regulator or even a rectifier pack getting dodgy. The latter can sometimes be picked up by the presence of a slight AC voltage across the terminals.
sparkyz,
Jun 29, 10:18am
Does this happen only in daytime when they have been driving for some time? Does it stop flashing if they turn the headlights on?
ceebee2,
Jul 5, 11:03pm
Quite common for a brush to stick in holder when almost worn out as it hangs in the holder. Being a Mitsi alternator, they do have other issues as well with similar results.
NB = If you find the alternator requires anything other than brushes then replace with genuine parts only as most compatible parts will not last.
frytime,
Jul 5, 11:27pm
Hang on. 12v at battery 14v at alternator. Blown fuse?
msigg,
Jul 6, 12:42am
Yes ridiculousness has it in one, don't worry about it at this stage, eventually, maybe in 3 months or more it will fail completely and then just get a replacement, if you still have the car. Yea its either charging too much at a point or not charging at a point.
ozz1,
Mar 20, 9:22am
2003 should be bosch alternater. either slip ring worn or brush worn. rectifier and brush pack held on by 2 screws. cheap at local auto sparky or BNT.
Since the public registrations are closed, you must have an invite from a current member to be able to register and post in this thread.
Have an account? Login here.