My 2002 wrx wagon died last week...got a jump and got to the parts store, turned off, car was dead again, another jump and they were going to check the system, the car died again revving to 2000 rpm...They said my alternator was dead...Swapped alternator and tried to recharge battery...battery was dead...Put in new battery to go with new belts and alternator car cranks, stuff works BUT, now I get an occasional flicker of the battery/brake light...I did the work myself and am a novice...Any ideas? was wondering if belt tension was off or if I got a bad alternator....I will add that it happens mostly at 2000-300 rpms when the car is accelerating, but is intermittent, and the number accessories I'm running don't seem to affect it.. I have retightened the battery connections...and pushed the clip connector on the alternator, which seemed to be correct...I checked the document that came with the new alternator...it was rated at 90 amps...not 75, could that be it?
Tonight, I noticed when the lights did their flash, there was a noticeable increase in brightness on the dash...Then it faded quickly...then the ABS went on...then the lights faded until it died...I managed to coast in the dark into a parking space and abandon ship. So I'm wondering if I have faulty wiring to the alternator, a new alternator with a bad voltage regualtor, or a bad alternator...
Living in DIY hell with the girlfriend....
A tow to the shop and 60 hours later...the garage said my battery was dead and the charging system was charging...did a warranty swap on the battery...2 miles from the garage going down the high, the battery/brake light lit up for a half second...so now its parked and I've ordered another alternator...hoping that I got a defective voltage regulator that is inside the new alternator...Any advice anywhere?
New Alternator was defective...so if you have those flashing Brake/Battery warning lights...chances are, something like the voltage regulator, which resides inside the alternator is hanging....and putting a drain on your battery...the second swap eliminated the problem...and the original dead alternator never showed the flashing lights...Hopefully this will bubble up in a google search for some poor soul, like I was...Peace out