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hi i own a 2000 Montana not ext not sure what model with 328 458 kms
with a few issues

the first is surging lights i should say everything electrical surges ,lights ,fuel pump,heater fan the lights are most noticeable they dim then bright n dim and so on Ive been told to change the voltage regulator (in the alternator)
not sure if that will do it

second the power locks lock and unlock with the key (in both doors but not the hatch) ,the switch on the inside will unlock all the doors but will not lock them (drive &pass) and the key fob we got does not work at all I'm told that the hutch's lock is jammed but still unlocks & locks with the above methods

third the power rear vent windows do not work Ive checked the fuse is good got power to the switch haven't got to the motors yet to see if they have power

forth the rear window wiper does not work, fuse good


the first is the one I'm trying to get fixed first as i can live with the rest for now[/align]