This is topic Has anybody had this electrical issue? in forum Tech Talk at Northern California Ford Owners  .


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Posted by SLOWSN95 (Member # 8269) on :
 
Its only happened 1 time.. In my 94', I was backing out of a driveway.. I was feathering the gas and noticed that my stereo restarted.. no big deal. While I was driving on the freeway doing 65, I noticed my stock tach jumping up and down. I revved my engine with the clutch in while I was on the freeway and my stereo restarted again and I noticed my battery light flash on and off for less than a half second. It flashed again when I revved it again. Pulled over, turned off the car, checked all of my connections on the battery and the alternator and everything was tight and clipped in properly. Off the top of my head, sounds like my alternator is taking a dump. I find it strange that my tach ended up jumping around, but since I saw the battery light, sounds like a charging related problem. Anybody got any different opinions?
 

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Posted by Als50 (Member # 6003) on :
 
Sounds like the voltage regulator on the alt. is going out.
 

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Posted by FOXX5.0 (Member # 9094) on :
 
I had that happen to me on my 95 mustang and it was my alt
 

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Posted by triple b (Member # 8763) on :
 
clean ur battery terminals with a battery brush
 

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Posted by RRRCobraSC281 (Member # 7086) on :
 
did you have the engine out? Sounds like a possible loose ground connection.
 

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Posted by SLOWSN95 (Member # 8269) on :
 
Battery is clean, motor has never been out.. 122k original miles. Still thinkin its the alternator. Might upgrade to a new one anyways. Thanks for the input guys
 

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Posted by triple b (Member # 8763) on :
 
if you trace the neg terminal there is a ground from the main engine wire harness coming from the drivers side. There is a fuse in a holder there. i always cut that out and solder a new wire straight to the ground. This has solved some wire issues in the past for me. If not is better than that janky fuse in there. totally forgot about that trick. Another trick to see if your alt is good is to start the car then pull off the positive terminal off the battery, if your car is still running then your alternator is good

[ March 15, 2012, 03:12 PM: Message edited by: triple b ]
 

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Posted by SLOWSN95 (Member # 8269) on :
 

quote:

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Originally posted by triple b:
if you trace the neg terminal there is a ground from the main engine wire harness coming from the drivers side. There is a fuse in a holder there. i always cut that out and solder a new wire straight to the ground. This has solved some wire issues in the past for me. If not is better than that janky fuse in there. totally forgot about that trick. Another trick to see if your alt is good is to start the car then pull off the positive terminal off the battery, if your car is still running then your alternator is good

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quote:

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Originally posted by samsbolt390:
The battery "trick" is a great way to kill an alternator when you disconnect the batt cable the alt has nowhere to put its charge and can overload and fry the regulator.

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