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2000 VW Jetta High battery draw/dies 12-18 hours after charge
My 2000 VW Jetta GLS w/2.0 L engine battery keeps dieing due to a constant high draw on the battery when the car is shut off. When the battery cable is removed there is a considerable arc of electricity. There is a secondary cable which connects from the positive battery terminal to an elecrtric bus located on top of the battery cover (this bus has several wires which come off of it). I am able to narrow the high draw item on the car to the heavy gage red wire which comes off of the bus. What does this wire power? When I disconnect only this wire from the bus, the car will not turn over and the dash board LCDs go blank. Someone said the problem may be the voltage regulator. Any suggestions? Thank you.
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If you have a voltmeter and know how to use it test the battery voltage with engine at idle and then again at 2000 rpm. You should have an increase of around 1.5 - 2.0 volts at 2000 rpm. Around 14.5 - 15.5 max.
SORRY TO TELL YOU WHEN DISCONNECT BATTERY ON VOLKSWAGONS.YOU MUST USE A MEMORY SAVER.IN CIGARETTE LIGHTER.TO KEEP COMPUTER MEMORY.IF YOU DONT.YOU HAVE TO GET A SPECIAL SCANNER TO REPROGRAM CAR LIKE THE DEALERSHIP.
The trick is to take off the belt and spin the different things and see if any of them make the noise you hear. Water pump, alternator, power steering, air pump, belt tensioner pulley. You could also briefly (30 seconds) run the engine without the belt and see if it still makes the noise.
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sounds like a bad ground somewhere. that can burn out power wires due to a high amp draw and cause the battery not to charge. try hooking up the negitive cable directly to the engine to jumpstart it. if that works and the car dies as soon as you disconnect the cables a bad ground is very likely. and I have noticed the new gms are very weak in the charging/battery department. They are using very cheep batterys ,die very easy. also check fuses.
Check your vacuum lines, make sure there is no leaks, and go from there, then all you electrical connection in the engine compartment.
I have a 1996 Jetta Trek Edition, the hoses, and wire harness, are so brittle, any movement can cause hoses and wire insulation to crack.
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