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Re: alternator is bad..
This is a bad alternator, if u are very skilled then u should have no problem, u just need common hand tools, remember to disconnect Battery before staring working, take a picture before u start work of bolts and wiring to alt..
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if the drive belt is correctly fitted and tensioned the alternator should be charging....have it checked and, if necessary, replaced
I am assuming that all the charging components, such as the regulator, are integrated in the unit.
Also, have the specific gravity of the cells in your battery checked for health/condition...might be the battery is not holding a charge very well, could be a dead cell.
1st thing ,make sure you haven't taken out too much gas out. ck.fuel filter. loosen fuel line up on carb. or fuel injection ,whichever it has. If able to get to turn over see if fuel getting to engine. If not,fuel pump bad or fuel filter plugged. If able to get car started, disconnect batt. If it dies, alt.probably bad
Options are a couple things like faulty ignition switch... or neutral safety switch either out of alignment or going bad... what does the car do when you try to start it... because it could also be the charging system ... such as the battery not having enough voltage to start or a bad alternator not charging the battery. You need to ***** the situation and check everything step by step. starting with the battery. if you have a voltmeter, you can set to DC and put POS to + and NEG to - and if it reads 12.5V with the motor off then the battery is charged a dead battery will read 11.8V. Start the car and place the POS lead of the voltmeter to the POS terminal on the alternator (the big red cover) and ground the NEG lead and you should get a similar reading steadily... It should not drop ... if you get a low reading then the alternator is going bad and cannot charge the battery. Next check your starter underneath the car and put the POS to the big terminal going to the battery, It should read a similar voltage. To check that the starter solenoid has enough power you can run a wire with a switch direct from solenoid to switch to battery and try or you can put the POS to the spade connector end and the NEG to ground and have a helper turn the key to start to check for voltage (12V) if not then it suspect a faulty ignition switch... If when you try to start after ensuring a good charge and get a cluck noise with no start or start sometimes then your starter may be bad... If you get nothing at all and your lights and accesories work with 'bright' lights then your starter solenoid may be bad... If nothing happens and the lights dim then the ignition switch may be bad ... If you're not much of a DIYer you can take the car to your local autozone or advanced auto and they do a free alternator and battery check...If they are good then you can remove the starter and have them perform a bench test. Hope this helps... Good Luck.
alternator's go bad - even some new ones are no good - prolly a rebuilt one gone bad - test it -- charge the battery - - then drive it in the day time to the local advance or auto zone - they will test ur charging system - also - take down the vin number and ask the local dealer if there have been any recalls or service bulletins - on ur car -
You have several choices;
) You can get the alternator check at an auto parts store. Most do it free. You will have to take it off.
) You can get the entire charging system check at Sears. The checkup is free.