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Topic: T-Bird's Not Charging.... (Read 5809 times) previous topic - next topic

T-Bird's Not Charging....

Hey guys, its been a while....

I was on my way home when the interior lights dimmed, radio died, and I eventual found myself on the side of the road waiting for a tow.  I have a fairly new battery and alternator, but just to be safe, i switched out my alternator and voltage regulator.  Exact same problem.  I used a probe to check all of the various connections, and cant figure it out for the life of me.  I got the alternator bench tested, and plan on exchanging the volt. regulator tomorrow but i seriously doubt thats the problem.  Any suggestions? Im stumped!!!

T-Bird's Not Charging....

Reply #1
What year and motor? If it's a 86-88 5.0, soft touch just posted the wiring diagram in another thread.
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

T-Bird's Not Charging....

Reply #2
http://www.foxtbirdcougarforums.com/showthread.php?39292-test-attachments

Here is the 86-88 302.
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

T-Bird's Not Charging....

Reply #3
Thanks so much, but I have all the factory manuals, and cant figure out the problem.  My motors a 2.3 turbo.  No dash indicator for the alt.  (I port on the volt regulator).  Any other common problems or a way to trace the issue?

T-Bird's Not Charging....

Reply #4
Give me a bit, I'm looking up a 2.3 alt diagram now.
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

T-Bird's Not Charging....

Reply #5
There are 3-4 different 2.3 alt setups supposedly. Outside of fuseable links, replacing the alt and regulator should fix the problem.

I had an alt go bad on me, I had to have them test it 3-4 times before it actually failed.
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

T-Bird's Not Charging....

Reply #6
The 86 EVTM shows the 2.3 Turbo has a 1G alternator and external regulator.

T-Bird's Not Charging....

Reply #7
http://www.foxtbirdcougarforums.com/showthread.php?38176-Problem-with-anti-theft-system-(I-think)-please-help!!!

I was looking for this thread, and it turns out it was your car lol.

I had a few weird things with the car running and charging, kept getting a battery light while driving and the car shut off. I threw in a new ignition switch and while I was there I found my problem. A few of the wires were loose and needed to be recrimped in the connectors. After that, I had no more issue. I wonder if your problem could be the same? My 86 does have almost 300k more miles then yours though...
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

T-Bird's Not Charging....

Reply #8
..... Im super confused.  I didnt realize that it was you that solved my previous problem. I am still indebted. Hmmmm maybe ill check out the switch again. hell if its under warrantee, maybe ill switch it out.

T-Bird's Not Charging....

Reply #9
I didn't fix your let problem. Like 5 other people jumped in first and said ignition switch.

I ment to check the plug side of the ignition switch. It looked like to me it was just crimped fittings and they can come loose. Several connections have two wires feeding them and one could easily come loose. Im going by memory though, think its been close to 4 years since i had mine apart.

When you had the alt tested good, how many times did they do the test? Like i said earlier, it took 3-4 times to get mine to fail last time.
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

T-Bird's Not Charging....

Reply #10
Ok, so I bought a new alt and volt reg. when the car died; same problem.  So when i went back to the store, I brought both alt.s and had my Original alt. tested 3 times.  It passed all three times, so i returned the new alt. and volt. reg. and am about to go pick up a new volt reg. and give it a shot, if its not that......im confused.  I tested the fuses and am not even sure which fuse would effect the charging system the way it is.  I suppose it could also be one of the fusable links.  Hell, who am I kidding? I havent the slightest idea....

T-Bird's Not Charging....

Reply #11
Quote from: chach868;452451
  I suppose it could also be one of the fusable links.  Hell, who am I kidding? I havent the slightest idea....


OK you said you have the manuals, look at page 22 in the EVTM, fuse link A is most likely open, connects between S131 & S132... Next look at page 32, states fuse link A is near starter relay(several others as well)... Fastest way to test is pull on link(s), if it bad will stretch easily... OR you could use real troubleshooting and test to see if there voltage on terminal A of the voltage regulator and on battery(largest wire) terminal of alt... With engine OFF, lack of voltage on both indicates fuse link A is open...

 

T-Bird's Not Charging....

Reply #12
alright, I'll go check it out right now.  As of now i just jumped the car with a tested alternator and a new volt. reg, same problem.  This leads me to believe that the problem lie in neither component.  The strange part is that the car started fine when I was heading home and just randomly died on the freeway.....  Ill check the books.  thanks man, your flock of t-birds makes me jealous.

T-Bird's Not Charging....

Reply #13
Quote from: TurboCoupe50;452452
OK you said you have the manuals, look at page 22 in the EVTM, fuse link A is most likely open, connects between S131 & S132... Next look at page 32, states fuse link A is near starter relay(several others as well)... Fastest way to test is pull on link(s), if it bad will stretch easily... OR you could use real troubleshooting and test to see if there voltage on terminal A of the voltage regulator and on battery(largest wire) terminal of alt... With engine OFF, lack of voltage on both indicates fuse link A is open...

And after you make those voltage checks, turn the key to RUN (don't start the engine) and check for voltage on the S terminal of the regulator.

In the 3.8 and 5.0 cars with the alternator warning light, after the Alt starts turning and has an output voltage, it keeps itself turned on. This done with a wire from the Alt S terminal to the regulator S terminal.
In your case, the ignition switch wire goes to the regulator S terminal.

T-Bird's Not Charging....

Reply #14
Quote from: softtouch;452454
And after you make those voltage checks, turn the key to RUN (don't start the engine) and check for voltage on the S terminal of the regulator.

do you mean S on the harness? how do i test the reg. with it plugged in?