I have a 91 jetta, 1.8 engine, All started when an alternator belt broke, replaced it twice and then realized it may be the alternator so we replaced it but the battery light came on so we put in a brand new battery and it still won't hold a charge, all connections are secure??? What else could it be?.
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You need to charge your battery up more. Either get a battery charger or leave the jumper cables hooked up for a longer period of time. Your battery was probably completely dead. You might even need a new battery...they really don't like to be completely drained.
Check your alternator which is not charging your battery.Make sure the serpentine belt is not broken and is turning your alternator pulley. If the belt is good and the pulley for the alternator is not frozen you may want to make sure the battery and alternator has a good ground connection. If you replace the battery your vehicle will run until the battery voltage drops so you have to fix the charging system first.
Did you check the battery? Alternator? The 2003 Jetta TDI's are FAMOUS for breaking the alternator pulley right off the shaft. Is your serpentine belt hanging? You could have a bad battery, broken alternator, broken serpentine belt, or bad alternator among a few other things. If your belt is hanging either the belt broke or more commonly, the alternator puller broke off the shaft. It happens all the time with the 2003's
There may be a surface discharge. this occurs when the vehicle still draws current from the battery even when the car is off.the problem could have been going on for a while now and the battery just cannot sustain in a charge any more. most times this occur in the morning when you start. a simple test is to disconnect the battery at night an see of it starts in the morning the battery held its charge and the car is the problem.. Other Reasons:- the lights was left on a door was left open battery not holding charge no battery water the alternater not working well to charge the battery
It sounds like the alternator belt or the alternator is going bad. The squealing sound was probably the alternator belt. the alternator belt might need to get tightened or replaced or you may need a new alternator. The alternator keeps the battery charged. When the alternator goes bad the battery can not be recharged. You also should keep the power steering fluid up to par or the power steering will go bad on you.
Sounds like your alternator is starting to seize up. Remove the belt and spin the pulley by hand. If you hear a light grinding sound or the pulley is stiff then the alternators bearings are worn. Take the alternator to an electrical repair shop for rebuilding. I usually pay around $50 as opposed to $100 or more from a parts store. Look up auto electrical repair in your Yellow pages. Older VW's are known for starter and alternator failures so finding a cheaper source for parts should help you save some money.
Possible solution. It could be the belt tensioner. It might not hold
the belt tight enough to have a consistent charge to the battery
through the alternator. I had to replace the one on my 91 accord and
that solved my problem.