cooked alternator?
#1
Lead Lap
Thread Starter
cooked alternator?
Well, i have this nasty whirring noise coming from the PS location. when i use the stethoscope it seems to originate from the alternator, like a bad bearing noise. I also swapped PS pumps with a spare I have just to be sure, but noise is still there, and when u scope the pump it is silent,.
Anyway I also noticed this morning my air solenoids werent acting properly and the cd deck kept cutting in and out when messing with the airride..seems like a voltage issue.
Yep, car running im seeing 11.5 volts, revving it up to 4000 rpm the voltage slowly rises up to a max of 12. This seems to confirm the bad alternator.
Anything else it can be? Clearly not a fusible link as the voltage does in fact rise, although very little.
I wonder if the brushes are toast on it? With twin compressors and a large stereo i know I am loading it way more than a stock unit would see.
Anyway I also noticed this morning my air solenoids werent acting properly and the cd deck kept cutting in and out when messing with the airride..seems like a voltage issue.
Yep, car running im seeing 11.5 volts, revving it up to 4000 rpm the voltage slowly rises up to a max of 12. This seems to confirm the bad alternator.
Anything else it can be? Clearly not a fusible link as the voltage does in fact rise, although very little.
I wonder if the brushes are toast on it? With twin compressors and a large stereo i know I am loading it way more than a stock unit would see.
#3
it could be more than just the brushes. best to just replace the alternator completely with a rebuilt unit or a higher output one for your extra components.
are you running a capacitor for the stereo? what kind of compressors are you running? viair comps are known to draw lots of current depending on model.
are you running a capacitor for the stereo? what kind of compressors are you running? viair comps are known to draw lots of current depending on model.
#4
Lead Lap
Thread Starter
Tein viair 400s and no cap! I have one sitting still nevet put it in. With no cap and the subs hitting i assume itnis putting a "shock" loading onto the alternator. Picking up a used one yomortow for 60$, dont trust the part store lifetime warranty ones for $200, and no time to order a higher output unit from my guy, need the car ready for woodward dream cruise this sat!
#5
Lead Lap
Thread Starter
took it to oreileys, put it on the mahcien and it started screeching. Yup bearing is toast and failed all tests. Picked up a used one for 40 bucks...hope it gets the job done till i can get a built one.
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bigboy0723
ES - 1st to 4th Gen (1990-2006)
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03-17-16 09:25 PM