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electrical problem with my 65 Mustang convertible

  • Thread starter Thread starter joeyemma
  • Start date Start date Apr 25, 2009
J

joeyemma

New Member
Sep 15, 2008
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Apr 25, 2009
#1
  • Apr 25, 2009
  • #1
Hi...I have a 65 green Mustang that I store in a garage in NH over the winter. Picked it up yesterday. Had to jump it....no problem, I expected that. Let it run for a while to charge the battery back up and it did the trick and started right up several times and ran like a charm. I drove it home (over 100 miles) with several stops along the way. No problems with the car...ran great and started back up easily every time I had to stop.

After about 150 miles of driving I noticed it running a "bit rough" but no problem. I parked it in my driveway and 1 hour later went to start it...dead. Turned over slightly but not even close to starting. Took the jump but would not re-start again so it is not holding the charge now.

This happened to me last summer and I replaced the battery and the alternator and the problem was solved. Belts look fine.

The engine is recently rebuilt.

I don't dare take it out today (even though it is gorgeous out) because last summer when this happened I got stuck 30 miles from home and it would take a jump, but would not continue to run as the alternator was shot.

HELP.....I am going to take it into my mechanic on Monday but if there is anything I can do myself today I would love to try.

Thanks!
 

Tim65GT

Active Member
Feb 24, 2004
1,149
2
39
West Texas
Apr 25, 2009
#2
  • Apr 25, 2009
  • #2
If you have a digital voltmeter (you can get them now days for less than $10), Check your voltage at the battery after you jump it while it's running. It should be 13-14 volts. If not, it's either the voltage regulator or the alternator. Most Auto Parts places can test your alternator for free.

If the voltage is good, then likely it's the battery. Sometimes they don't always come back to life. It's a good idea to get a "battery minder" when the vehicle is in storage for the winter. It's like a small charger that puts out less than one amp and keeps the battery from going dead.

Also, Look at all the wires, terminals and connections for any signs of loose, frayed, broken, corroded, melted, or shorting at the battery, solenoid, alternator, voltage regulator, firewall connectors and engine grounds.
 
J

joeyemma

New Member
Sep 15, 2008
8
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0
Apr 25, 2009
#3
  • Apr 25, 2009
  • #3
new battery

I decided to just buy a new battery....installed it. The car won't start....it turns over a bit...should I jump it?


Thanks
 
J

joeyemma

New Member
Sep 15, 2008
8
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0
Apr 26, 2009
#4
  • Apr 26, 2009
  • #4
ok....this is what is going on now. I put the new battery in and it was fully charged. The car still required a jump to get started. I don't understand that. But then it ran great. Perfect...smooth and strong. After about 20 minutes it started to muck down again....sputter and not idle properly. And when it did finally stall, it would not start without a jump. I am hoping to get it to my mechanic tomorrow....just don't understand what is going on.
 

Mil1ion

New Member
Feb 26, 2009
48
0
0
Apr 26, 2009
#5
  • Apr 26, 2009
  • #5
this makes 3 treads on 3 different mustang sites.
 
J

joeyemma

New Member
Sep 15, 2008
8
0
0
Apr 26, 2009
#6
  • Apr 26, 2009
  • #6
is that wrong? I was just trying to reach as many people as possible to figure this thing out....I won't do it again
 
2

2+2GT

10 Year Member
Apr 25, 2009
3,333
10
79
Southeastern Pennsylvania
Apr 26, 2009
#7
  • Apr 26, 2009
  • #7
joeyemma said:
is that wrong? I was just trying to reach as many people as possible to figure this thing out....I won't do it again
Click to expand...

You have a problem with your car. Only a fool would ask the question only once.
 

timeless2

Vi Veri Veni Versum Vicus Vici
Admin Dude
Nov 29, 1999
1,366
202
154
the Shadow Gallery
Apr 27, 2009
#8
  • Apr 27, 2009
  • #8
Mil1ion said:
this makes 3 treads on 3 different mustang sites.
Click to expand...
What is your point? This user is free to do whatever he/she chooses online. Either contribute to constructively assist or do not participate. Thank you.
 
T

T900enforcer

New Member
Feb 9, 2009
7
0
0
Apr 28, 2009
#9
  • Apr 28, 2009
  • #9
Sounds like your voltage regulator is killing your battery. if you perform the tests posted by 65GT you'll be able to find out.

T900
 

Mil1ion

New Member
Feb 26, 2009
48
0
0
Apr 28, 2009
#10
  • Apr 28, 2009
  • #10
The point is ....there are some of us that have answered this guy with tons of GRAT info yet he HASN'T responded to our posts.


All there is ,is this same question which he doesn't reply to.


Now do you understand ?
 
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