89 LX Sedan dies after changing alternator - Honda-Tech


89 LX Sedan dies after changing alternator

Reply
 
 
 
Thread Tools Search this Thread
Old 03-13-2017, 01:20 AM   #1
Honda-Tech Member
Thread Starter
 
Join Date: Oct 2013
Posts: 51
Default 89 LX Sedan dies after changing alternator

I am having a problem with a D15B2 89 Civic LX Sedan dying on me. The problem is that my brother stated that he would drive the car, and that it would occasionally and abruptly just die electrically while driving. I tested the voltage of the battery while it was running initially, and under load with the lights on and so forth, it was at 11.7 volts....so I surmised that it was a poor alternator. Anyways, I replaced the alternator with a new one, and I started the car up. It was initially 15 volts at the battery with the engine on, but it steadily and gradually went lower and lower as the engine idled for 10 minutes. I had it lower to the 12 volt range, then the car abruptly completely died electrically. It wouldn't do ANYTHING, as if the battery wasn't even connected. So I am going to guess the alternator is not the issue, but is there is common wiring issue that is preventing the alternator from charging the battery? Like, many things on this car, I'm stumped by what it's doing. It's symptoms make me believe that it is likely an electrical wiring issue, but the new alternator did not fix the issue.
jeffcat is offline   Reply With Quote
Old 03-13-2017, 05:15 AM   #2
Honda-Tech Member
 
got_no_sol's Avatar
 
Join Date: Nov 2007
Location: Richmond Va
Posts: 268
Default Re: 89 LX Sedan dies after changing alternator

Check the ignition switch next time it does jiggle the **** out of the key and see if it will start or do the reverse while running jiggle and try to make it **** off , I had a near identical issue on my homies f20b and it was a combination of shitty dizzy igniter and bad ignition killing the car after about 10-15 mins of driving
got_no_sol is offline   Reply With Quote
Old 03-14-2017, 05:09 PM   #3
Honda-Tech Member
Thread Starter
 
Join Date: Oct 2013
Posts: 51
Default Re: 89 LX Sedan dies after changing alternator

Quote:
Originally Posted by got_no_sol View Post
Check the ignition switch next time it does jiggle the **** out of the key and see if it will start or do the reverse while running jiggle and try to make it **** off , I had a near identical issue on my homies f20b and it was a combination of shitty dizzy igniter and bad ignition killing the car after about 10-15 mins of driving
the ignitor, ECU, fuel pump relay, and alternator are all new. A new battery was placed in the car today and it runs....for now, although the old one tested "bad" at O'Reilley's supposedly. However, if there is a problem with the alternator or the wiring, it will most likely drain the new battery as well, and really just temporarily band aids the issue as the car should run with the battery disconnected as the alternator takes over once the car is started. The car started, but would run 5 minutes, then die. The car ran fine for a few months before this. So my question is if the alternator and battery are not bad then:

1: something has to be putting a monumental load on the alternator for it to be so overcome that it can't recharge the battery.
2: a connection in the wiring somewhere is screwed up and a fuse or relay that I'm not aware of is not allowing for an adequate amount of energy to recharge the battery.
jeffcat is offline   Reply With Quote
Old 03-15-2017, 03:15 PM   #4
Honda-Tech Member
 
bbarbulo's Avatar
 
Join Date: Sep 2002
Location: CANADO
Posts: 2,152
Default Re: 89 LX Sedan dies after changing alternator

i never trust a store to check my battery. of course they'll say it's bad, it's a $100 sale for them - you're walking in thinking you have a battery problem AND they sell batteries. they'd be stupid to send you out the door with your old battery in-hand.

1. no
2. no

why are you stuck on it 'not charging the battery'? nothing about that behavior says the battery isn't charging. you said ALL electrical goes out. Not just the engine, but I assume all lights are dead (dome light, hazard lights, etc...) - stuff that should normally stay on, even with the key out of the ignition. And hazards or dome light could run on the power of a bunch of AA batteries strung together, so minimal power is needed.

My alternator died one time, I drove around another 40 minutes to get home on battery power alone. So if it wasn't charging, a fully charged battery should get you at least that amount of time if you keep your headlights, radio, HVAC, wipers, defrost... off.

So start from the beginning... car just died, all electrical went out. What do you do to start it again? Boost the battery? Or wait 10 minutes? Or ???

Post a picture of your battery terminals. I'm talking close-up...
bbarbulo is offline   Reply With Quote
Old 03-15-2017, 05:34 PM   #5
Honda-Tech Member
 
tamboo's Avatar
 
Join Date: Jul 2013
Location: sleeping in a 95 gs-r
Posts: 1,320
Default Re: 89 LX Sedan dies after changing alternator

ALTERNATOR BRUSH HOLDER Honda Mazda Scion Mini Chevrolet Geo Pontiac DENSO IR/IF | eBay

old alt might have just needed a new brush unit (look up proper part #).
new one could be junk. buy denso or other made in japan quality stuff.
a good battery tender is worth it.
tamboo is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2001 Civic Charging Issue tonyskala Tech / Misc 2 02-08-2017 01:22 PM
You Got A Battery Light GoodUsername Honda Accord (1990 - 2002) 8 06-01-2015 01:47 PM
Electrical help needed!! joshjohnson94eg Tech / Misc 6 04-02-2015 06:18 AM
92 Civic Engine Dies Momentarily alicrose Honda Civic / Del Sol (1992 - 2000) 5 03-26-2012 03:06 PM
Battery keeps dying!!!! JuneBugDrfter Honda CRX / EF Civic (1988 - 1991) 4 10-31-2010 06:57 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -8. The time now is 10:36 AM.


 
  • Ask a Question
    Get answers from community experts
What's your question?
Send