1990 Ford Mustang Power Drain

JOEY

MEMBER
1990 FORD MUSTANG
V8
2WD
MANUAL
14,900 MILES

I have a 1990 5.0 And all of a sudden my battery amps are low. I replaced the battery. Which didn't help. So I took my alternator and had it tested. It was good. I don't know what is draining my amps

Tuesday, January 13th, 2009 AT 10:53 AM

5 Replies

DOCFIXIT

MECHANIC
18,828 POSTS

Most likely some circuit is powerd up with key off. Try disconnect batt overnight if this helps. Then you need a battery drain test done to find circuit and repair.

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Tuesday, January 13th, 2009 AT 11:16 AM

JOEY

MEMBER
7 POSTS

When I took it to have a power test it shut my car down and now it wont start. I have no power to my fuel pump or power windows. But my lights work and CD player. But it wont start. So I replaced the starter relay and checked my fuses. Still nothing

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Monday, January 19th, 2009 AT 5:23 PM

DOCFIXIT

MECHANIC
18,828 POSTS

What was power test? It died during test? There are fuse links on your car looks like wire. Near starter relay use test light find A Brown link it may have been blown. It is for fuel pump. Then check fuse # 14 for power windows.

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Wednesday, January 21st, 2009 AT 4:10 PM

JOEY

MEMBER
7 POSTS

I checked all my fuses. But I will check the fuse links. But I tried to start my car again and when I put the key in and turned it I had no power. Not to my gauges fuel pump, nothing. So when I tried to turn it over it didn't start but I tried to turn my it over with out pressing the clutch and my fuel pump kicked on. So I'm confused But it still didnt start

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Thursday, January 22nd, 2009 AT 12:56 PM

JOEY

MEMBER
7 POSTS

So now the car starts, it was my ignition. But I still have no volts. Again new battery and alternator. Every time I put in a new battery and alternator I will drive it and it will show like 11 volts on my gauge then the alternator will fry. Something is shorting out or something is busted somewhere. I just dont know were. Please help