Question about Hyundai Accent

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I have a 2000 accent it has some sort of power problem just replaced alternator and battery worked fine for a day now lights are dim and motor has no power random dash lights come on and off (airbag, check engine, brake, seatbelt)

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Sounds like the new altenator isn't working. Now sometimes they sell altenatores that don't work but the store bought ones work most of the time. You need to get the batter charged before moving forward as the altenator is'nt a battery charger ( it'll work like one but it'll work so hard it'll burn out charging a low battery) Your new altanator was put in with the good battery and the good battery was charged up all the way then that's fine.. So now we got to find why it's not working before you say the new altenator is bad. Theres a big wire on the back of the altenator all by it'self heald on with a bolt. this wire is hot from the battery all the time even wigh the key off. In the main fuse panel under the hood there's a (Main, or Altenator) fuse in the box it's the biggest one and it's bolted in. the rest of the fuses just pull out. It'll be 100 amp ( it's big) It's on an angle in the corner of the panel, ( It's the only one on an angle) it' needs to be hot( battery power all the time) as the other end of it's wire is one the altenater and the other is connected to the battery. If this checks out move on to the small plug on the back of the altenater that plugs in. one wire is hot all the time and the other comes hot turning the key on. If they don't two fuses have to be good in the under dash fuse box the number 1 and number two fuses have to be good their the upper left and the next one on the left down. all the fuses should be good and live with the key on. Use a test light( a icepick like tool with a clear handle a wire coming out of the end with an allagater clip on the end, Walmarts got em and all the auto parts stores do to as do tool dears and other laces too) touch the back sides of the fuses with the alligator hooked to medal ground ( door hinge)bolt into the body and touch both sides of the fuses to see if thier live if it's hot ( light's the light) on both sides it's good, one side it's blown. You can look at fuses and tell that their bad but you can't always tell a good one by just looking, ( look good and be bad, happens alot) If the fuses are good and the plug on the altenator lights the light with the key on and the belt that's turning the altenator is good and tight and not worn out then you need to take the altenator back off and have it tested at the store ( the one you bought it at will be best) if it's bad exchange it for a good one and put it on with a new belt or one you know is good ( 100,000 miles is too much ) then make sure the battery is good and charged ( take it with you to the store and they'll charge it test it and exchange it for a good one if it's bad ( you need to do this at the store you got the battery from or a least have the reciept if your going to a different branch of a chaisn store. some batteries are warrenteed by any of their deslers and their number to find the closest dealer sometimes is on the battery.

Posted on Oct 15, 2010


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