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2008 Jetta 2.5... Intermittent to constant no-charge. 3rd alternator, 2nd battery...I'm lost JA: Have you tested the battery with a voltmeter? And can you see if it's leaking or not? Customer: It shows 13.6 after a charge... I haven't tested when the car freaks out on highway or quits, the key tells me it's dead. JA: Are you fixing your Jetta yourself? What have you tried so far? Customer: I am. I'm on my 3rd alternator and second NAPA battery. JA: Anything else you want the mechanic to know before I connect you? Customer: I don't believe so.
Hello, my name is***** and i will do my best to assist you.I am going over your story now and will reply back soon with some info,thanks!
do you have a volt meter to check the battery while the car is running to see what the voltage is?
ok , the biggest issue is melting fuse boxes, on top of the batter you should have small fuse box with a bunch of red and or black wires coming out of it , ill send a picture over, this box powers the alternator. most times the fuses blow or the box melts.
it also affects the ac compressor and radiator fans if memory serves me., so take a look at this box, we used to change the fuse box and the wiring to the alternator . very very common issues. hope this helps. let me know, I will do my best to help you. Please take a second and click the stars at the top of the screen to rate me so i may receive my credit , 5 stars is ideal , please request me in the future.Keep in mind then when you rate it does not end our conversation. you can still return here to me for follow up information if needed, Lou P.
interesting,,,,,,,,, usually returning to idle is worse, you dont hear a belt squeal do you? a loose tensioner can cause something like this cause the belt will slip on the pulley of the alternator. I do not think there is enough room to get the regulator out, plus you have changed the alternator so that should have been fixed as well with the new alternator.
hmm, i really suspect the fuse box, can you open it and send me a few pictures of it. ?
no problem, we can get this figured. also is your car auto or manual? that actually may matter.
ok, the manuals have a clutch inside the alternator. not sure if the automatics do . not 100%
ok sounds good.
checking in, havent heard from you in a few days. you still need my help? I am here if you do.
ok, that fuse box is the different one. I will have to opt out , this later year I am not sure of the issue and dont want to waste any more of your time.
Thanks for choosing Just Answer . I'm Wolfgang here to help!!
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ok i see what is going on. i need you to do this .
please let me know what you come up with please
that test at the cig lighter will not work . you need to check the voltage at the back of the alternator with a volt meter and then at the circled area of the pic you have provided. i need to see if the voltage is different at the back of the alternator to the cable point of the fuse box.
yeah not easy to get but need to get to it . i usually get a long screwdriver and then use that with one lead of the meter touching the blade of the screwdriver to the nut of the big cable of the alternator . note be careful not to ground the blade to metal or damage will occur.
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