i have a 580 watt amplifier and a 97A alternator, my alternator wont charge my battery when my car is running, i have checked the belts and they are tight, i have checked all connections and they are solid.
2007-03-20 17:21:47 · 9 answers · asked by need4speed_underground_ps2 1 in Cars & Transportation ➔ Car Makes ➔ GMC
does it charge the bat when the amp is off. if not you have a bad alt. if it does you still need a bigger alt go 150amp or bigger.good luck
2007-03-20 17:27:06 · answer #1 · answered by doug h 5 · 1⤊ 0⤋
That 97A alternator might have its rating stated in peak current, instead of RMS. If that's the case, then you really only have a 68A alternator(97A * 0.707), in which case your 580 watt amplifier(pulling 48A) is starving your electrical system of all the power it needs. The rest of your vehicle must need the extra 20A for your spark coil, computer, and lights.
2007-03-24 17:31:06 · answer #2 · answered by joshnya68 4 · 0⤊ 0⤋
The alternator or the voltage regulator has blown.
Take a multimeter and measure the voltage without the engine running. Should be about 12V. Then start the engine and take another reading across the battery terminals and it should read 13.6V. If it doesn't then you need to have the charging system repaired.
2007-03-21 00:27:30 · answer #3 · answered by Fordman 7 · 1⤊ 0⤋
You may need to go to a high out put alternator to compensate for the extra juice you use for your sterio. Call and check around to get the best price.
2007-03-21 00:51:24 · answer #4 · answered by skip1960 4 · 0⤊ 0⤋
Have a load test done to the battery by Auto Zone.
2007-03-21 14:42:30 · answer #5 · answered by (A) 7 · 0⤊ 0⤋
Stop by auto zone or schucks, they will check the charging system.
2007-03-21 00:25:29 · answer #6 · answered by renpen 7 · 0⤊ 0⤋
when you turn the key to the on positition does the bat light come on if not it is the light,it makes a complete circuit
2007-03-24 09:44:19 · answer #7 · answered by will79601 3 · 0⤊ 0⤋
regulator...sometimes built into the alt.
2007-03-21 00:25:33 · answer #8 · answered by Anonymous · 0⤊ 0⤋
perhaps your battey is dead, have it checked at any service or borrow a tester and do it yourself
2007-03-21 00:27:59 · answer #9 · answered by mickkooz 4 · 1⤊ 0⤋