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Alternator wire melted on a 2008 year car
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Marcness
New User
Jan 31, 2010, 1:37 PM
Post #1 of 6
(1854 views)
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Alternator wire melted on a 2008 year car
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Hello,
First info on the car.
Year : 2008
Make: Opel
Model: Astra OPC Turbo
Engine : 2.0 (model z20leh)
Kilometers : 37,000 (Car under warranty)
A month ago the red battery light turned on, service tech checked voltage by using Tech 2 tool, alternator was charging sometimes, sometimes did charge but others stopped charging, that's why the red light turned on.
They took the alternator out to be fixed on the bench but electric tech said it was charging well, only a little of rust in one terminal, the alternator was remounted but after a several hours the red battery light turned on again, Tech 2 showed that charge was again unreliable so decided to change the alternator for a brand new one. I had to wait for a month for the new alternator, finally the new alt was mounted but four days later it died again and my car passed away on the middle of the highway.
Towed the car to the dealer, they unmounted the brand new alternator to find the positive wire and terminal from alternator totally melted.
I don't trust on the dealer technicians but since the car is under warranty they have to fix it, I want to have a second opinion to tell them what to do. I feel this problem was their fault because did a bad mounting or they didn't find the source of the problem when mounted the second alternator.
Below you can see a picture of the alternator just like it was found after unmounted.
I will apreciate very much what should request to be double checked and tested, they will change the wire so my concern if they would use the right wire.
Thanks very much for your feedback
Marcelo
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Sidom
Veteran
/ Moderator
Jan 31, 2010, 3:32 PM
Post #2 of 6
(1835 views)
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Re: Alternator wire melted on a 2008 year car
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In this case I don't know if it's possible or not but the best thing may be to find a different dealer if you don't have confidence in this one.
No offense intended and with all due respect if you think you are going to get better knownledge of these systems via internet auto forums show very little respect for this profession as a whole to what kind of knowledge & training is required to work on some of these new systems, not even mentioning the tool & equipment requirements.
Sure it sounds like they missed something & if you had some working knowledge of these systems you would realize that an intermittent is one of the toughest problems to trace down and that is what they are going to have to find, the intermittent short.
You have every right to know what the final problem & fix was/is so you can have confidence in your car but going in dictating a diagnostic routine off the internet won't be received well and really won't help your situation.........
(This post was edited by Sidom on Jan 31, 2010, 3:32 PM)
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Marcness
New User
Jan 31, 2010, 4:05 PM
Post #3 of 6
(1828 views)
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Re: Alternator wire melted on a 2008 year car
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In this case I don't know if it's possible or not but the best thing may be to find a different dealer if you don't have confidence in this one.
No offense intended and with all due respect if you think you are going to get better knownledge of these systems via internet auto forums show very little respect for this profession as a whole to what kind of knowledge & training is required to work on some of these new systems, not even mentioning the tool & equipment requirements.
Sure it sounds like they missed something & if you had some working knowledge of these systems you would realize that an intermittent is one of the toughest problems to trace down and that is what they are going to have to find, the intermittent short.
You have every right to know what the final problem & fix was/is so you can have confidence in your car but going in dictating a diagnostic routine off the internet won't be received well and really won't help your situation.........
Thanks very much for your reply.
We are doing a kind of team work with the technician chief, since he confirmed that is his first time repairing this car (there are only 100 units in my whole country) so just want to help him looking for the common benefit.
I never intended to show up telling what to do because respect their job anyway, but this dealer as many others in my country usually change the broken piece but never repairs it, so they don`t have deep knowledge on intermitent problems like this, so I guess they tried to make the same thing without looking for the real source of the problem.
We actually changed dealer from the one who made the first change but all of them belongs to same umbrella whatever city they are, same training and same way of making business by fixing cars.
So, I will apreciate if can come with some help you guys can suggest me to contribute to the teamwork we are doing to fix this car.
I cant take the car to a different dealer network because would loose the warranty.
Regards
Marcelo
(This post was edited by Marcness on Jan 31, 2010, 4:29 PM)
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Sidom
Veteran
/ Moderator
Jan 31, 2010, 4:29 PM
Post #4 of 6
(1823 views)
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Re: Alternator wire melted on a 2008 year car
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Unfortunately my database only covers vehicles in the US and not it Chile so I can't even pull up a wiring diagram on this car.
Just due to the intermittent nature of your problem (sometimes the lights on, sometimes off) and since the alternator had been replaced really seems to point at a short in the wiring, especially since you melted the power feed wire.
I would look at a wiring diagram and start check all the power feeds. I'd start with the main one that got melted. Do a visual inspection of the harness & wiring, make sure it isn't pinched or rubbed thru anywhere, do a wiggle test on the harnesses (move them around to see if that makes a difference) and then start doing some voltage drop testing on the related circuits....
On the main feed wire, I would disconnect it from the back of the alt (so it doesn't get melted again doing this test) but leave it powered up, hook a test light to power & probe the end that went to the alt, then do the wiggle test, if the light turns on or even blinks while wiggling the harness that would indicate a short to ground.
This stuff is pretty basic so it's probably not what they are looking for but due to the fact I have no experience on this make, it's all i have to offer.
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Sidom
Veteran
/ Moderator
Jan 31, 2010, 4:59 PM
Post #6 of 6
(1812 views)
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Re: Alternator wire melted on a 2008 year car
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I doubt the wiring would be the same but if it is the alt feed is off the starter.
That harness would need to be inspected for an external damage or rubbing thru but I imagine they've already done this......
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