I own a 1997 Buick Riviera and the stock alternator just went out ( thats over 10 years!) Everything else is in working order and there are no current problems. It takes a 140 amp alternator stock but Napa's replacment premeium alternator was 150 amps. After a long hassle to install at night in the sears parking lot!, I started the car and all was fine. When I came home, I just revved it a bit before i shut it off and I noticed that the interior lights flickered a bit. (I said " Oh Great!, I can ever just solve a problem , a new one has to come up!.lol) This has never happened beforre...Ever. I noticed the next night that the headlights "pulsed" as well. I figured out that at 2500rpm's and above, it does this. below that everything is fine. Keep in mind everything was connected exactly how the original one was. I'm pretty decent with car and even had a buddy there for assistance. The ground is tight and so is the connecter. Battery terminals are back on tight as well. Battery tested.
2007-03-19 22:53:36 · 5 answers · asked by CeeStyle 2 in Cars & Transportation ➔ Maintenance & Repairs
If the internal voltage regulator was bad, woulndt it be effected at other rpm's as well?
2007-03-19 23:29:22 · update #1
Got the Alternator tested and it outputting just how it should. or at least that's what they said. still having lights flickering problem!
2007-03-20 20:12:31 · update #2
Update: not the voltage regulator!
2007-03-23 20:32:35 · update #3
make sure the plug on the alt dose not have a wire that is off and the grounding for the alt is ok. test voltage useing the alt housing for the ground and turn on all acessories. if its a bad ground that will tell you. if it is fine (13.8- 14.7) then make sure the belt is tight.
2007-03-26 06:40:13 · answer #1 · answered by jsn_ayers 4 · 0⤊ 0⤋
hi, get a voltage reading at the battery while reving engine up and down. voltage should be steady at about 14.8max. if the voltage goes up and down with the engine rpm i would replace the regulator or the whole alternator unit. good luck.
2007-03-25 20:44:58 · answer #2 · answered by charlie 5 · 0⤊ 0⤋
Even though you just installed a new alternator...I think the internal voltage regulator is bad...have it draw tested and see if the output bounces..if so replace it...before you warranty goes out..
2007-03-19 23:07:32 · answer #3 · answered by gotspeed7883 3 · 1⤊ 0⤋
The output at that RPM is going to be pretty steady, I mean if it did pulse it would be so fast you couldn't catch it. Try replacing the voltage reg if it's seperate, whole alternator if it's not.
2007-03-19 22:59:04 · answer #4 · answered by 1000 Man Embassy 5 · 0⤊ 0⤋
Your automobiles production facility electric powered device isn't adequate adequate to handle the present this is being ate up with the help of the subwoofer amplifier. besides the fact that if it rather is merely 380 watts, opportunities are high it rather is drawing everywhere from 25 - 40 amps of extra cutting-edge out of your motor vehicle's electric powered device. try setting up a capacitor (a million.5 farad must be adequate). Failure to handle your project might effect in injury on your motor vehicle's alternator that could desire to deliver approximately problems charging your battery. in the experience that your alternator is going out, and your battery is now no longer being charged, you would be dealing with much greater problems and $$$ than might have been spent merely setting up a capacitor.
2016-10-19 03:47:27 · answer #5 · answered by ? 4 · 0⤊ 0⤋