This is topic alternator wont hold the charge! what else could cause it????? in forum Tech Talk at Northern California Ford Owners  .


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Posted by 2ToNE ToNe (Member # 4216) on :
 
i reacently purchased an 88gt...it ran good until it didnt want to start...i jumped it and it started...soo then i drove it around the block and i turned on my lights and and every time i pushed the gas it wouldn want to go...i turned the lights off and it ran a lil more but then did the same...im stuck...i repalced the battery..and it still wont hold the amps...everytime i press the gas it wants to go but blogs off and wants to turn off......but if i turn the lights or my electric fan or even press the gas it'll dye,....need help asap

[ April 05, 2005, 03:44 PM: Message edited by: 2ToNE ToNe ]
 
Posted by Blue97GT (Member # 4241) on :
 
same thing happened to me in my 97GT..

its the alternator..replace it and your 88 should run fine.
 
Posted by 2ToNE ToNe (Member # 4216) on :
 
i'm going to replacce the alternator...i replaced it when i first bought it due to melting the connection on it...it was fried...so i replaced it with a used one ...but i'ma use a brand new one tommorow
 
Posted by 2ToNE ToNe (Member # 4216) on :
 
i also changed the coil..today trying to find the issue...ohh..1 question what would cause the alternator i bought it with to melt the connection..??
 
Posted by Blue97GT (Member # 4241) on :
 
i think it might be the amp of the alt is too low..not a high enough amp for the car..

Mine did the same thing..it melted my connections..i had to replace them...or it couldve been just a bad alternator.
 
Posted by 2ToNE ToNe (Member # 4216) on :
 
i think its just a bad alternator..because it doesnt charge for shi*
 
Posted by 2ToNE ToNe (Member # 4216) on :
 
i replaced the alternator...and its still f**king up....brand new alternator...its still not holding the charge..it running of the battery power...and its draining it...until it dies....what could it be????...could it be the alternator wiring??
 
Posted by blind (Member # 3052) on :
 
probably the wiring.

upgrade to a 3g and run a new power wire so that you can eliminate the wiring thats on there now.

also there's a fused link off the alternator, do you have a voltmeter and have you checked to see if the fuse that inline on that lead isn't blown?

use a voltmeter and check at the alternator to see if its charging, then check at the solenoid over by the coil to see if the voltage is the same.
 
Posted by 2ToNE ToNe (Member # 4216) on :
 
thanks guys i'ma try that...
 
Posted by 2ToNE ToNe (Member # 4216) on :
 
i found that the wire with the fuze link that hooks up to the starter soliniod and also to the connections on the alternator were not connected ..(black W/orange stripe wire)...im going to rewire it and see why my alternator isnt charging...what is it supposed to read on the fuze link and on the soleniod?????

[ April 01, 2005, 07:35 PM: Message edited by: 2ToNE ToNe ]
 
Posted by blind (Member # 3052) on :
 
quote:
Originally posted by 2ToNE ToNe:
what is it supposed to read on the fuze link and on the soleniod?????

around 12 volts
 
Posted by 2ToNE ToNe (Member # 4216) on :
 
ok..im going to replace that alteranator harness..
 
Posted by 94gt (Member # 3060) on :
 
quote:
Originally posted by blind:
probably the wiring.

upgrade to a 3g and run a new power wire so that you can eliminate the wiring thats on there now.

also there's a fused link off the alternator, do you have a voltmeter and have you checked to see if the fuse that inline on that lead isn't blown?

use a voltmeter and check at the alternator to see if its charging, then check at the solenoid over by the coil to see if the voltage is the same.

[patriot]
[Whoo Whooooo!]
 
Posted by 2ToNE ToNe (Member # 4216) on :
 
i replaced the harness for alt..and new battery in..still fu***d...i'm going to replace the alternator..what amp should i use...i dont run a radio...i was thinking about 140..just in case and it cost the same as a stock one
 
Posted by blind (Member # 3052) on :
 
just get a stock alternator for a 94/95 5.0 mustang

thats known as a 3g alternator and is a pretty easy swap.

search on google for "3g upgrade" or search the forum here and you'll find nice install write-ups.
 
Posted by evintho (Member # 5536) on :
 
Check your battery cables. 30 years ago I had a GTO that wouldn't hold a charge. Turns out the POS batt cable was rubbing against the frame. All the insulation rubbed off and it was shorting out. All the amps were going right into the frame.
 
Posted by 2ToNE ToNe (Member # 4216) on :
 
thanks....i put a 2 wire setup powermaster 140amp alternator..and still not charging....wtf [Mad] [Mad]
 
Posted by Honig (Member # 5551) on :
 
same thing was happening to me in my 89 but i had a wire ran from the the chargin point to my positive on my battery and she run like a charm
 
Posted by blind (Member # 3052) on :
 
its really hard to diagnose an electrical problem such as that over the internet.

if you want it fixed and can't figure it out yourself then you need to take it to a shop that knows mustangs
 
Posted by 94gt (Member # 3060) on :
 
did you replace the fuseable link?
if theres an auto zone nearby, they will test your charging system for free

to me it almost sounds like you have a short thats not blowing a fuse
 
Posted by Quick 88LX (Member # 1950) on :
 
quote:
Originally posted by 94gt:

to me it almost sounds like you have a short thats not blowing a fuse

That gives me an idea... Have you tried replacing the inline fuse that runs from the alternator to the starter solenoid? If that fuse is blown then nothing will ever charge no matter how many new batteries you get or wiring harneses you hook up.

The fuse looks like this:
 -
 
Posted by Quick 88LX (Member # 1950) on :
 
It is located in a little black box inline a 4-6 gauge wire that runs along the bottom of the driver side fender. If you have your battery under the hood still, it will be under the battery most likely. Try replacing that.

Note: your fuse may not be 200 amp but it looks EXACTLY like that.
 
Posted by Quick 88LX (Member # 1950) on :
 
Fusible link looks like this:
 -
 
Posted by 2ToNE ToNe (Member # 4216) on :
 
ohh/...tahnks guys...i did that and replacd the harness to one that didnt have a blown fuze link...but it didnt work .....so i went to vic hubbard and i bought a 140amp alternator that runs a 2 wire set up (1)->the post - battery (2)--> to the green wire w/red stripe on one of the 2 connections that hook up on the alternator
 
Posted by 2ToNE ToNe (Member # 4216) on :
 
the car runs hella good now that the alternator is charging..14.9 voltmeter...pretty good...thats all it took to fix this car..

[ April 08, 2005, 01:54 AM: Message edited by: 2ToNE ToNe ]
 
Posted by Eddie510 (Member # 2354) on :
 
[Whoo Whooooo!] [Whoo Whooooo!] its nothing to a bossalini [Big Grin]
 
Posted by Eddie510 (Member # 2354) on :
 
quote:
Originally posted by 2ToNE ToNe:
the car runs hella good now that the alternator is charging..14.9 voltmeter...pretty good...thats all it took to fix this car..

yeah,somthing some other people couldnt figure out [patriot] keep it cuts.lol

[ April 08, 2005, 02:04 AM: Message edited by: Eddie510 ]
 
Posted by 94gt (Member # 3060) on :
 
sounds like you got a few bad alts then, or if thats a 2 wire set up, there may have been something wrong in the VR circuit
 
Posted by 2ToNE ToNe (Member # 4216) on :
 
yea the alternaotr i had were all bad they wernt charging...and its a 2 wire setup...but i also believe your right on the vr circut.........thanks guys...for the help..it was a real headache

[ April 08, 2005, 02:11 PM: Message edited by: 2ToNE ToNe ]
 
Posted by Quick 88LX (Member # 1950) on :
 
Electronics can do that to ya^^^^
 




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