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Re: Battery/Alt./ Ground? Posted by RS [Email] ![]() ![]() ![]() In Reply to: Battery/Alt./ Ground?, TH, Mon, 12 Jan 2004 06:27:30 Members do not see ads below this line. - Help Keep This Site Online - Signup |
There are a few main things that could be causing this:
- The brushes on the voltage rebulator in the alternator being worn down below their service limit. If it has more than 150k miles I'd suspect this. I had the same thing happen to me quite a distance from home. The voltage regulator is on the back of the alternator (towards the front of the car). If you have a very long screwdriver, you can get to the screws to take the unit off. Below is a link to the procedure. For my money, I'd just get a Bosch regulator. Do NOT get an Echlin regulator from NAPA, they don't fit '88s.
- The ground wire from the alternator case to the engine block is broken. When it's running, check the voltage between the alternator case and the negative battery terminal. If it's greater than .5 volts with all of the accessories on, the wire is probably bad.
- Slipping belts.
- On rare occasions, the alternator itself is bad.
posted by 63.148.1...
http://www.dave-new.com/alt.html
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