got a voltage problem-_-

[mustangcobra94]

I'm getting a serious voltage drop at idle.. lights flickering. Held it at 1000 rpms and she still flickered. A buddy of my said then voltage regulator on the alternator could have went. Just curious what steps I should take in order to figure what the hell is going on....thanks guys

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[Noterminator]

Sounds like what was happening to me and Todd aka Tbapp3 on the way back from Rockland county last year. You more than likely need a new Alt.

 

[mustangcobra94]

Damn, I hope so... ill grab one tomorrow and throw it in, hopefully she'll run a lot better

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[Noterminator]

Great time to upgrade to a higher ampage.

 

[mustangcobra94]

What amps do you guys recommend? I'm running a Duracell 630 crank amps or something around that.....

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[Noterminator]

I'd say anything from a 160-180 will plenty enough. If you have a car stereo system, then just buy an extra battery to run it separately.

 

[mustangcobra94]

I'm just running speakers and tweeters, nothing too crazy.. I could run the battery to the back and do that if do any major. I'll go for 160 . I'll let you guys know may as well delete the compressor since the belts out lol

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[Noterminator]

Lol good luck. Keep us posted. I'm 90% sure though once you change it all will be good.

 

[Wicked One]

Sounds like the voltage regulator which is not part of the alternator on the 5.0 up to 95. It is on the passenger side near the headlight, if it is a 2 wire alternator . I would check the voltage at the battery at idle, should be in the 14.6 range. if below than the regulator is crap if good, then there is a ground that is loose.

Alternator output amps for stock woukd be above 100 amps. The 630cca is the battery.

Think small and test first.

 

[Noterminator]

Sounds like the voltage regulator which is not part of the alternator on the 5.0 up to 95. It is on the passenger side near the headlight, if it is a 2 wire alternator . I would check the voltage at the battery at idle, should be in the 14.6 range. if below than the regulator is crap if good, then there is a ground that is loose.

Alternator output amps for stock woukd be above 100 amps. The 630cca is the battery.

Think small and test first.

That's another option for sure. But what he described is exactly what happen to me and Todd and it was a bad Alt. Got it changed and all was fine after that. Jumping it would work for a short while, then it'd go back to dimming everything. And battery level would drop dangerously low.

 

[mustangcobra94]

Hm there's alot I dont know about this car still.I'll get a volt reading in the morning or when I get home. Hopefully I dont fry my ecu on the way home... that's just what this car needs... thanks all hopefully this works

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[AdirondackFox08]

You can usually get the alt tested at one of the major parts stores.

 

[Noterminator]

+1

I forgot to mention that. Go to either Advanced Auto or Autozone. Both do tests on alts and batteries for free.

 

[mustangcobra94]

Every single connector on this car is snaped... The voltage regulator wasnt in all the way causing the voltage problem... Intake manifold being silconed as a replacement for a gasket caused the surging at an idle. Shes all fixed just time to move onto the front end!

 

[Noterminator]

Damn, someone fucked up lol.

 

[Wicked One]

Glad you found the issue. Now enjoy the car