Meeky Moose Posted January 27, 2006 Share Posted January 27, 2006 its an 86 gl wagon, carbed ea82 engine.. was drivin home tonight from work, and the alt gauge jumped up to almost 18, lights got real bright, the tach started jumping all over the place, and it started backfireing and pinging bad.. the first thing i noticed was the tack so i thought coil, but then i noticed the alt gauge and lights, then the backfireing and pinging.. possibly the disty?! i just changed the fuel filter today.. so i know its not that.. EDIT: ohh its also had this intermittent miss.. like it drops a cylinder once in awhile.. does it totally random, no rhym or reason.. Link to comment Share on other sites More sharing options...
85Sub4WD Posted January 27, 2006 Share Posted January 27, 2006 sounds like the voltage regulator in the alternator went out - DO NOT DRIVE UNTIL IT IS FIXED!!! - I blew up a battery when it happened to me .... Link to comment Share on other sites More sharing options...
Meeky Moose Posted January 27, 2006 Author Share Posted January 27, 2006 when i saw the guage jump up i turned the blower on high to get it back to 14, lol.. i know that was too much juice.. sounds like the voltage regulator in the alternator went out - DO NOT DRIVE UNTIL IT IS FIXED!!! - I blew up a battery when it happened to me .... Link to comment Share on other sites More sharing options...
85Sub4WD Posted January 27, 2006 Share Posted January 27, 2006 yeah - I had it happen to me while I was decending a mountain - I ended up going 35mph in 5th gear :-\ - I got to the bottom, and found/installed a replacement - then I discovered my battery had croaked, spewing acid all over the engine bay those things do not take well to voltage spikes - luckily you don't have fuel injection, cause that can get REALLY messed up when voltage goes up like that - gotta love our voltmeters Link to comment Share on other sites More sharing options...
Meeky Moose Posted January 28, 2006 Author Share Posted January 28, 2006 so was it the alternator or the disty? yeah - I had it happen to me while I was decending a mountain - I ended up going 35mph in 5th gear :-\ - I got to the bottom, and found/installed a replacement - then I discovered my battery had croaked, spewing acid all over the engine bay those things do not take well to voltage spikes - luckily you don't have fuel injection, cause that can get REALLY messed up when voltage goes up like that - gotta love our voltmeters Link to comment Share on other sites More sharing options...
Frank B Posted January 28, 2006 Share Posted January 28, 2006 My vote is with the alternator/voltage regulator. Link to comment Share on other sites More sharing options...
Phizinza Posted January 28, 2006 Share Posted January 28, 2006 My vote is with the alternator/voltage regulator. ditto Link to comment Share on other sites More sharing options...
85Sub4WD Posted January 28, 2006 Share Posted January 28, 2006 so was it the alternator or the disty? it was the alternator - the tach jump only indicates disty if the voltage in the car is normal - your tach is fairly sensitive to the car's voltage, so when you start getting crazy voltage spikes, it will shoot your tach all over the place - the giveaway in your case was that your lights got super-bright and voltmeter went high after you get your alt. replaced, it would probably be a good idea to keep an eye on the electrical system, just to be sure that nothing was damaged good luck Link to comment Share on other sites More sharing options...
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