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914World.com _ 914World Garage _ My "G" Light Is On
Posted by: Headrage Apr 14 2005, 08:27 PM
C'mon guys, everything is new. All of a sudden my "G" (Alternator) light will not go out. No matter what I do. Any ideas?
Posted by: vsg914 Apr 14 2005, 08:28 PM
Belt tension ok?
Posted by: Bleyseng Apr 14 2005, 08:43 PM
Hey, its better than the oil light being on...
you musta not connected sumthin right
recheck all the wiring to and from the Alt and the belt. 
Posted by: Rhodes71/914 Apr 14 2005, 08:47 PM
New alternator?
Was it tested!
Posted by: Headrage Apr 14 2005, 08:54 PM
New Bosch alternater, tested by the best in town. It was good until today. Belt is new (I mean, brand new). All was well untill now. 
I was ready for the WCC and now it is iffy........
Posted by: Mueller Apr 14 2005, 09:00 PM
| QUOTE (Headrage @ Apr 14 2005, 07:54 PM) |
| New Bosch alternater, tested by the best in town. It was good until today. Belt is new (I mean, brand new). All was well untill now. I was ready for the WCC and now it is iffy........ |
have you checked to make sure the belt is still on there??
Posted by: ! Apr 14 2005, 09:06 PM
Have ya put a volt meter on the battery posts? Make sure the battery is FULLY charged....
12.5v at rest
13.0 at idle
13.5-14.0 max at 2500 rpms
Alts do take a dump....they also have regulator probs....see what the meter says and get back to us...
Posted by: ! Apr 14 2005, 09:08 PM
ALSO....the ground strap at the trans to body under the rear trunk can do some real funky things when not tight or has dirty contacts....
Posted by: Headrage Apr 14 2005, 09:13 PM
My gounds are good. Give me the weird stuff.
I gotta go to bed now 
Forgive me. 
Posted by: Aaron Cox Apr 14 2005, 09:16 PM
voltage regulator new?
Posted by: grantsfo Apr 14 2005, 09:17 PM
| QUOTE (Mueller @ Apr 14 2005, 07:00 PM) | ||
have you checked to make sure the belt is still on there?? |
I'm with Mueller I have had new belts jump off or slip on past teeners.
Posted by: ! Apr 14 2005, 09:17 PM
I got from SB to Riverside and back w/o a alt working....found out I had a bad dash stooopid bulb and needed a diode on the D+ circuit.....
Posted by: ! Apr 14 2005, 09:19 PM
A scotch and sofa made me feel better afterwards...
Posted by: 914fire Apr 14 2005, 09:19 PM
nice avatar Z...... 
Posted by: MattR Apr 14 2005, 09:25 PM
disconnect the bulb? 
Posted by: Headrage Apr 14 2005, 09:26 PM
I'm going to have a scotch and sit on the sofa for awhile thank you very much..
Posted by: ! Apr 14 2005, 09:28 PM
| QUOTE (MattR @ Apr 14 2005, 07:25 PM) |
| disconnect the bulb? |
The bulb is part of the circuit you weenie....no bulb no charge
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Posted by: MattR Apr 14 2005, 09:30 PM
jump the circuit. get creative ZOIS
Posted by: Headrage Apr 14 2005, 09:31 PM
I will check back tomorrow.
Posted by: ! Apr 14 2005, 09:31 PM
Fix it RIGHT .....beeeyotch.....
Posted by: MattR Apr 14 2005, 09:32 PM
oh yeah, well you could do that 
Posted by: Aaron Cox Apr 14 2005, 09:33 PM
congrats, you have hit your 914's G spot 
Posted by: skline Apr 14 2005, 09:43 PM
I cant believe all you guys, it may not be any of those things. Check fuse number 8, in fact, check all your fuses, I will bet you a drink at the WCC it is a fuse. If it is, you buy me a drink. If it is not a fuse, I will buy you a drink. By the way, I drink Propel!!!
Posted by: Aaron Cox Apr 14 2005, 09:45 PM
| QUOTE (skline @ Apr 14 2005, 08:43 PM) |
| I cant believe all you guys, it may not be any of those things. Check fuse number 8, in fact, check all your fuses, I will bet you a drink at the WCC it is a fuse. If it is, you buy me a drink. If it is not a fuse, I will buy you a drink. By the way, I drink Propel!!! |
you didnt know that till slits told you.....
Posted by: skline Apr 14 2005, 09:47 PM
But I remembered, that is the key. And you should have too since you know he is the one who told me. I would say you owe me a drink too. Make it Kiwi Strawberry please!!
Posted by: SGB Apr 14 2005, 09:51 PM
voltage regulator is an easy replacement , a likely culprit, and not expensive. Give that a try. I've had brand new VRs that were DOA, and caused me to R&R my alt TWICE!
Posted by: skline Apr 14 2005, 09:55 PM
I replaced mine too when the light came on and when I did it came back on about 10 minutes later. That is when Slits told me about fuse 8, it was loose and not making a good connection. Once that was resolved, I have not had the problem since.
Posted by: Aaron Cox Apr 14 2005, 11:29 PM
ironically....
my G light went on nice and bright on my 30 min drive home in the dark...
wonder how long i can go with headlights 
time to dig in tomorrow
Posted by: skline Apr 14 2005, 11:34 PM
Mine is on constantly in the Chalon. I need to dissconnect it since it doesnt go to anything anymore. Or should it work with the V8 conversion? Andyrew? MrIhop? anyone thats done a V8 conversion that knows?
Posted by: Reiche Apr 14 2005, 11:57 PM
Headrage: Check out http://forums.pelicanparts.com/showthread.php?threadid=132735 on Pelican. If you put on a rebuilt alternator, this could be your problem.
Posted by: Aaron Cox Apr 14 2005, 11:59 PM
things for me to check in da morning...
1) voltage reg
2) #8 fuse
3) did something unplug?
4) do i still have a belt on?
5) is my alternator really dead?
Posted by: Brando Apr 15 2005, 12:13 AM
| QUOTE (Aaron Cox @ Apr 14 2005, 09:59 PM) |
| things for me to check in da morning... 1) voltage reg 2) #8 fuse 3) did something unplug? 4) do i still have a belt on? 5) is my alternator really dead? |
hmmm...
you need a VOM to check stuff? I gots a spare.
Posted by: Aaron Cox Apr 15 2005, 12:27 AM
| QUOTE (Brando @ Apr 14 2005, 11:13 PM) | ||
hmmm... you need a VOM to check stuff? I gots a spare. |
Dads an EE....i got lots of test equip here...thx for the offer
Posted by: V6914 Apr 15 2005, 12:56 AM
Mr, Z I have to ask this, does the heat generated by the stroke on your jugs cause distortion?
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Posted by: Elliot Cannon Apr 15 2005, 01:22 AM
When you trouble-shoot electrical problems. Always, always check the easiest things first. What's the easiest thing to check? Scott said something about a fuze? Check that first. Then check the voltage on the battery. First with the engine off, then with the engine running. If the voltage isn't higher with the engine running, you gots gen. or regulator problems. I changed my generator awhile back because I was convinced that it was the problem. Guess what? It was the f**cking fuze!!!! It's an indicator fuze. It's really easy to change. Check the easiest things first.
Cheers, Elliot
Posted by: Headrage Apr 15 2005, 05:08 PM
Well, I had my mechanic test the alternator. Putting out 14 volts or so, light is still out but now my freaking battery is dying. WTF NOW?
Posted by: ! Apr 15 2005, 05:16 PM
Do a load test on the battery...
Posted by: Headrage Apr 18 2005, 01:12 PM
Crap, here it goes again. Checked the fuses, tightened all the grounds, belt is good. Light comes on, dims and goes out. Voltage while running 12.6. Restart car, light goes out voltage 14.2. Back and forth, back and forth. WTF?
Posted by: Aaron Cox Apr 18 2005, 01:16 PM
| QUOTE (Headrage @ Apr 18 2005, 12:12 PM) |
| Crap, here it goes again. Checked the fuses, tightened all the grounds, belt is good. Light comes on, dims and goes out. Voltage while running 12.6. Restart car, light goes out voltage 14.2. Back and forth, back and forth. WTF? |
same deal here
visible but dim at idle.... disapears by 1700 rpm
Posted by: Headrage Apr 18 2005, 01:23 PM
Anybody have a couple extra working alternators they could bring to the WCC just in case?
Posted by: vsg914 Apr 18 2005, 01:29 PM
Checked the connections at the relay board/ wiring harness to starter/alternator?
Have you guys been working on each others cars?
Posted by: ! Apr 18 2005, 04:00 PM
Have you checked to see if there is a break in the wire from the alternator D+ post to the bulb?
You might want to try and hang a temporary wire to see if that corrects it.
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