Ferrari 308 problems

Most likely a wire in the stalk rotary knob has come unsoldered from its metal contact piece. One way to confirm/deny if the stalk knob is working (or not) is to touch the relay with the "K" (Bosch ...006) on it = you should be able to feel it "click" when you rotate the stalk knob to "on". See this thread if you do find that turning the rotary knob switch "on" does not actuate the "K" relay:
https://www.ferrarichat.com/forum/threads/instructions-for-fixing-a-headlight-switch.257534/

 

Thank you for the information i was hoping it was not the rotary knob now I did to figure out how to take it apart and check the wires.

 

I added a link in my prior post to a reference thread with pictures.

 

Thank you for the link It look very helpful I would not have known about the knob to pull off and look at the solder joints. I thank you very much for the link.

 

I just had my alternator rebuilt and it has been working fine up until now. I am getting no output at all from it. Has anyone else experienced this? It would really suck If I have to take it back out again. It was a nightmare the first time.

 

Does your alternator warning light in the dash come "on" when you turn the key "on" (engine not running) as it should?

 

it does but when I start the engine the battery light does not light up the way it should that is how I knew the alternator was not working.

 

If you mean that the alternator (battery) warning light does not go "off" when the engine is running, have you confirmed that the alternator V- belt is still OK? The alternator warning light will often go "on" with the engine running when the alternator has an electrical problem (but also sometimes not go "on" when the alternator has an electrical problem); however, the real intended function of the alternator warning light is to detect a broken/missing alternator V-belt.

 

I looked at the alternator the belt is still on and running. I just am not understanding why it's doing it. everything is running and I just had it rebuilt unless something inside the alternator has broker or something. a winding or something. I might just have to take it back off and bring it back to where I had it rebuilt to have tested. The place is the best around I took it to. The Ferrari dealership sends their alternators to them.

 

I had the same issue. Not enough voltage at the battery. Rebuilt alternator. I witnessed the proven bench test at the rebuild shop. Reinstalled alternator. Still not charging adequately.

Check the connection at the starter. There’s a red cable that runs from the alternator to the starter. The connection lug at the starter was faulty. I replaced the lug and made a solid connection at the starter. All good now.
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thanks for the info I will do that today. I hope that is the problem.

 

I was thinking about what you said about the starter stud. The car still starts the alternator is not working. If that lug was bad then the car would not start correct?

 

No, the car started and ran fine. Looking at the complete diagram, (if you have one) the fat red wire from the starter runs to the fuse panel.
So the power to the starter is not affected by the smaller red connection to the alternator.

I drove the car for quite a while and plugged in the trickle charger when not in use.
I'm pretty sure it was the faulty wire connection all along and I didn't need an alternator rebuild.

 

You said to replace the connection stud not just clean it? I need to replace it need to take the whole starter out.

 

This lug deteriorated from corrosion. Only a few strands of wire were hanging on for dear life.
The termination bolt (stud) at the starter remained intact.
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I think I said lug, meaning red wire connector to the starter stud. Sorry for the confusion

 

thanks I am head out to look at all the connections. thanks for the information. fingers crossed. I hope to chat with you later on what I find.

 

Ok, good luck.

 

I checked all coneections cleaned them also. No luck on that working. It must be the alternator. Not sure what else to look at.

 

I notice now that my transmission is engaging when I start the car as well. Man if it’s not one thing it’s another with these cars.

 

Sorry that that didn't work for you.
Steve probably has some more troubleshooting for you

 

??? Are you saying the car tries to go into gear when you are cranking it over?

 

Would you have the full picture you sent me. I had my alternator checked and it tested good. So it has to be one of the wires coming off the alternator. I am guessig it’s the one that says D+ the other one is good. Wanted to see what D+is and where it’s going.

 

D+ goes to gen (alternator) light on dash

 

I suspect you do not have a wiring diagram or owner's manual?