2002 Hyundai Accent Won't Start - Hyundai Forums : Hyundai Forum
Reply
 
LinkBack Thread Tools
#1 Old 12-31-2011, 04:25 AM
Member
 
Join Date: Dec 2011
Location: ca
2004 hyundai accent
Posts: 31
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
snowber is an unknown quantity at this point
(Thread Starter)
2002 Hyundai Accent Won't Start

1) Changed battery (AAA said the one we had was too small)
2) Changed alternator

A couple different places tested the car and said nothing was wrong with the original battery and alternator, and even kept it for a day to be sure.

The car starts sometimes, and doesn't start other times.

A friend of ours changed the alternator after he saw that the voltage was low. It seemed to work fine for a month or two and then yesterday it didn't start. Now, TODAY, it started. After work, though, it didn't start again. Had to jump start it.


After jump starting it (we didn't leave it idle that long before removing cables and trying to drive it), we turned on the headlights and the power started fading away until it turned off. We jump started it again and left it on longer, drove it a while before turning on the lights and it made it home. Once we turned it off, it wouldn't turn back on.

Friend is coming by to check it out again tomorrow but I'd like to know if this is a known problem people have found a fix for? I've seen someone say fuel pump, others say something about coils, and more.

I REALLY APPRECIATE ANY HELP ON THIS!! At this point, i just want to know my fiance isn't gonna break down in the middle of the road again.
snowber is offline  
Sponsored Links
Advertisement
 
#2 Old 12-31-2011, 08:49 AM
Senior Member
 
Join Date: Oct 2011
Location: Cleveland, OH, US
Drives Accent '02 Drives Accent '04
Posts: 664
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Barnyspup is on a distinguished road
Quote:
we turned on the headlights and the power started fading away
This is the salient clue. There is a problem in the main power distribution.
Don't replace any parts, such as fuel pump, coils, etc.

I would use a multimeter (if you don't have one, they can be had for $10) to track it down.
Start with the meter connected directly to the battery posts (not the clamps, the actual posts). Should read 12.6V or thereabouts. Switch on Headlights. When they start to die, does the voltage at the posts also die? If yes, then the battery is to blame. If no, the wiring is suspect.

To test the battery ground (Negative) wiring, clip the meter Red lead onto some clean body sheet metal or bolt. Hole the meter Blk lead on the battery Neg post itself. Switch on headlights. The meter should read Zero volts, or close to it. Anything above 0.2 volts would be a red flag.

Next, clip the meter Blk lead to the clean body metal. Clip the Red lead to the battery Pos clamp. Repeat test with Headlights On. Voltage should remain above 12 volts.


Post back what numbers you get and we can proceed further.


Speedy Jim
Speedy Jim's Home Page, Aircooled Electrical Hints
Barnyspup is offline  
#3 Old 12-31-2011, 02:49 PM
Member
 
Join Date: Dec 2011
Location: ca
2004 hyundai accent
Posts: 31
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
snowber is an unknown quantity at this point
(Thread Starter)
Quote:
Originally Posted by Barnyspup View Post
This is the salient clue. There is a problem in the main power distribution.
Don't replace any parts, such as fuel pump, coils, etc.

I would use a multimeter (if you don't have one, they can be had for $10) to track it down.
Start with the meter connected directly to the battery posts (not the clamps, the actual posts). Should read 12.6V or thereabouts. Switch on Headlights. When they start to die, does the voltage at the posts also die? If yes, then the battery is to blame. If no, the wiring is suspect.

To test the battery ground (Negative) wiring, clip the meter Red lead onto some clean body sheet metal or bolt. Hole the meter Blk lead on the battery Neg post itself. Switch on headlights. The meter should read Zero volts, or close to it. Anything above 0.2 volts would be a red flag.

Next, clip the meter Blk lead to the clean body metal. Clip the Red lead to the battery Pos clamp. Repeat test with Headlights On. Voltage should remain above 12 volts.


Post back what numbers you get and we can proceed further.


Speedy Jim
Speedy Jim's Home Page, Aircooled Electrical Hints
Thanks so much for your help, it really means a lot to us

At this point, considering we've had this problem with 2 different batteries, I'm hoping it's not a battery issue but I'll test it anyway.

Excuse me for being a newb at this, but can I test this with a small multimeter? The kind used for computer parts with the tips rather than clips?

If so, I'm guessing I should just set it to 12v or 20v dc and do the testing from there?
snowber is offline  
#4 Old 12-31-2011, 02:54 PM
Senior Member
 
Join Date: Oct 2011
Location: Cleveland, OH, US
Drives Accent '02 Drives Accent '04
Posts: 664
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Barnyspup is on a distinguished road
Yes, use the meter you've got. Set to 20V.
We'll work thru this till you find the problem.

Jim
Barnyspup is offline  
#5 Old 12-31-2011, 03:10 PM
Member
 
Join Date: Dec 2011
Location: ca
2004 hyundai accent
Posts: 31
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
snowber is an unknown quantity at this point
(Thread Starter)
Quote:
Originally Posted by Barnyspup View Post
Yes, use the meter you've got. Set to 20V.
We'll work thru this till you find the problem.

Jim
XD!!
snowber is offline  
#6 Old 12-31-2011, 05:58 PM
Member
 
Join Date: Dec 2011
Location: ca
2004 hyundai accent
Posts: 31
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
snowber is an unknown quantity at this point
(Thread Starter)
Quote:
Originally Posted by Barnyspup View Post
This is the salient clue. There is a problem in the main power distribution.
Don't replace any parts, such as fuel pump, coils, etc.

I would use a multimeter (if you don't have one, they can be had for $10) to track it down.
Start with the meter connected directly to the battery posts (not the clamps, the actual posts). Should read 12.6V or thereabouts. Switch on Headlights. When they start to die, does the voltage at the posts also die? If yes, then the battery is to blame. If no, the wiring is suspect.

To test the battery ground (Negative) wiring, clip the meter Red lead onto some clean body sheet metal or bolt. Hole the meter Blk lead on the battery Neg post itself. Switch on headlights. The meter should read Zero volts, or close to it. Anything above 0.2 volts would be a red flag.

Next, clip the meter Blk lead to the clean body metal. Clip the Red lead to the battery Pos clamp. Repeat test with Headlights On. Voltage should remain above 12 volts.


Post back what numbers you get and we can proceed further.


Speedy Jim
Speedy Jim's Home Page, Aircooled Electrical Hints
Thanks again for the reply. We just did some testing (it's a dry day and the car starts fine since we had the battery charged at Autozone)

1) We connected the multimeter to both posts like you said, turned on the headlights and it went down slowly to about 12.6v but stayed steady there for about a minute, then we disconnected.

2) We connected red to a bolt on the car, then blk to the neg terminal of the battery and switched on headlights. It read 0-0.01 volts, so that seemed ok.

3) Finally, we did the same but with blk to bolt and red lead to battery pos and we got 12v+.

Anything else we can try at this point?

I wonder if this is accurate since the car has the starting issue only at random times (maybe when there is condensation?)
snowber is offline  
#7 Old 12-31-2011, 06:06 PM
Member
 
Join Date: Dec 2011
Location: ca
2004 hyundai accent
Posts: 31
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
snowber is an unknown quantity at this point
(Thread Starter)
I should also mention that are mechanic friend just tested the alternator he put in a month ago and its reading 12v instead of 14 which is what it was when it was first put in
snowber is offline  
#8 Old 12-31-2011, 06:42 PM
Member
 
Join Date: Dec 2011
Location: ca
2004 hyundai accent
Posts: 31
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
snowber is an unknown quantity at this point
(Thread Starter)
UPDATE:

Ok, so my friend was reading some info on all data about the grounds in this car and decided to run another ground since one of them showed a drop in voltage. Still, even with all accessories off (headlights, ac, etc), we get about 11.83 max. With accessories on, about 11.6v.

Still testing
snowber is offline  
#9 Old 12-31-2011, 07:07 PM
Member
 
Join Date: Dec 2011
Location: ca
2004 hyundai accent
Posts: 31
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
snowber is an unknown quantity at this point
(Thread Starter)
Another important update:

Alright Jim, thanks again for your help. Here's where we're at so far:

Our mechanic buddy left, said he was gonna come by again tomorrow to replace the alternator just to be absolutely sure it wasn't a faulty one.

What's happening is this: He put it a new alternator that was working fine at 14v+ but over time, it has degraded. In our recent test, we charged the battery at Autozone fully to 12.6v (and we measured the reading). We ran the car for a while, and that voltage slowly dropped, turns out the alternator was putting out 11.6v or so rather than the 12.6 to sustain the battery.

So now, the battery is down to about 11.6-11.9v (the alternator can't keep up with it) and we're gonna get it warranty replaced.

Now, both of us kinda doubt it's the alternator. He's checked out some wiring and it looked ok so he's not sure what would be causing the alternator to deteriorate like that. Once he swaps it out, he will be able to tell for sure if it's the alternator that is faulty, or if there is something else that is unable to keep it charged.

Any ideas on what would do that?
snowber is offline  
#10 Old 12-31-2011, 08:37 PM
Senior Member
 
Join Date: Oct 2011
Location: Cleveland, OH, US
Drives Accent '02 Drives Accent '04
Posts: 664
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Barnyspup is on a distinguished road
My, you have been busy
Good work.

Does the dash "Battery" light come on when key is turned to Run position?
If it does not, the alternator may not begin charging.

Otherwise, get the replacement alternator in and see if charging voltage is normal.

There have been complaints about poor Ground connections on these cars; corrosion issues I suspect. One heavy Ground goes from the battery Neg post clamp to the engine. Inspect both ends of that for corrosion and for tightness.

Once the alternator is charging again, then we'll see if there are any other problems.

You probably already know this, but the engine computer loses its memory when the battery power is removed. It can take a series of driving episodes for it to "remember" its settings, so don't be surprised if the engine acts a bit strange.

Jim
Barnyspup is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hyundai Forums : Hyundai Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome