Question about 1987 Porsche 944
Is your volt light working?
If this is not working then check the bulb, if this is ok then earth the D+/61 terminal off the alternator.
If your light works then the fault is the alternator, if it still does not work then check the following:
1. Check that the fuse is ok for the charge lamp.
2. Check the blue wire from the alternator to the firewall connector for continuity. If this is ok the check from the firewall connector terminal for the alternator lamp to the connector behind the dash. If this is ok then you have a problem with the dashboard circuit, or if you found no continuity between the connectors to the alternator then you got a broken wire some where between them.
Hope this helped. Let me know if you need more information.
Posted on Aug 19, 2010
Instead of following all that, why not just put a jumper from the charge post of the alternator over to the battery positive, and see if the issue continues?
Normally, a draining battery is because there is either a dead short or a disconnected ground somewhere.
First check should always be all the ground wires on the chassis/engine/battery. Ensure they are clean and not corroded, and that they are connected and making good contact to clean metal.
Another test to see if the alternator is charging is to remove the positive battery cable from the battery while the engine is running. If the engine stops immediately, the alternator isn't charging. If the engine starts running rough, but continues to run, or just runs fine, then the alternator is charging.
Posted on Aug 19, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Dec 23, 2010 | 1984 Porsche 944
May 05, 2010 | 1987 Porsche 944
Mar 13, 2010 | 1987 Porsche 944
Aug 02, 2009 | 1986 Porsche 944
Jun 04, 2009 | 1987 Porsche 944
May 27, 2009 | 1987 Porsche 944
Jan 10, 2009 | 1987 Porsche 944
Oct 07, 2008 | 1989 Porsche 944
Sep 10, 2008 | 1987 Porsche 944
189 people viewed this question
Usually answered in minutes!