Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

what the hell happened???

Thread Tools
 
Search this Thread
 
Old 02-06-2003, 11:50 AM
  #1  
Member
Thread Starter
 
91BlkRS's Avatar
 
Join Date: Feb 2002
Location: Maine
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
what the hell happened???

OK, for a week, the low battery light has come on when I shut the car off, but it never came on while I was driving until 2 nights ago. It came on as I was driving home from work and a few minutes later the car shut down. I waited a few minutes then I started the car and went home and the light didn't come on again until I shut the car off at home. Then I started it up for school the next morning and it ran. For about five minutes and then it shut off. I went to go start it, but it wouldn't start. Well I figured the battery was dead and got one that night. This morning I put it in and the car started, but again shut off after about five minutes. So I thought maybe the alternator wasn't working so I put in the spare one I had. The car still wouldn't start. So what the hell is wrong with my car???
Old 02-06-2003, 12:29 PM
  #2  
Member
 
aklaim's Avatar
 
Join Date: Jul 2002
Location: San Jose, Ca
Posts: 318
Likes: 0
Received 0 Likes on 0 Posts
Sounds like you have a bad connection somewhere. Check and make sure you have a good solid ground, and make sure your fuel pump is in good working order. This will give you a good start at diagnosing the problem.
Old 02-06-2003, 12:38 PM
  #3  
Member
Thread Starter
 
91BlkRS's Avatar
 
Join Date: Feb 2002
Location: Maine
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
what do i do to check if the fuel pump is alright?
Old 02-06-2003, 12:42 PM
  #4  
Member
 
aklaim's Avatar
 
Join Date: Jul 2002
Location: San Jose, Ca
Posts: 318
Likes: 0
Received 0 Likes on 0 Posts
Turn the key to the on position, make sure your radio and any other noise making deviced are off. It helps if yo have a buddy help too. So turn the key to the on poistion but dont start the car. Then stick your head underthe rear of the car, right below the gas tank and listen. You should be able to hear it pumping. This is how I do it anyway. BTW, if its really quiet you can hear it from in the car.
Old 02-06-2003, 12:49 PM
  #5  
Member
Thread Starter
 
91BlkRS's Avatar
 
Join Date: Feb 2002
Location: Maine
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
lol, i figured i would have to take it out and use a tool to check for voltage or something, thanks.
Old 02-06-2003, 01:06 PM
  #6  
Member
Thread Starter
 
91BlkRS's Avatar
 
Join Date: Feb 2002
Location: Maine
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
i hear the fuel pump. i also noticed that the fan is turning on, but the engine is dead cold???
Old 02-06-2003, 01:06 PM
  #7  
Member
Thread Starter
 
91BlkRS's Avatar
 
Join Date: Feb 2002
Location: Maine
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
i hear the fuel pump. i also noticed that the fan is turning on, but the engine is dead cold???
Old 02-06-2003, 01:07 PM
  #8  
Member
Thread Starter
 
91BlkRS's Avatar
 
Join Date: Feb 2002
Location: Maine
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
where should I begin to look for a bad ground or wire?
Old 02-06-2003, 01:11 PM
  #9  
Member
 
aklaim's Avatar
 
Join Date: Jul 2002
Location: San Jose, Ca
Posts: 318
Likes: 0
Received 0 Likes on 0 Posts
You fan switch is most likely grounded. That will make your fan come on when the key is turned to on. As far as finding the ground, just look around for loose connections. Check the starter and make sure everything is nice and tight. Try to get a hold of a volt meter, and check for power at various points. like the starter, alternator, relays, etc.
Old 02-06-2003, 01:15 PM
  #10  
Member
Thread Starter
 
91BlkRS's Avatar
 
Join Date: Feb 2002
Location: Maine
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
i don't see any bad wires. this really sucks, i had a bunch of plans this weekend. this car is stressing me right to the ends.
Old 02-06-2003, 01:16 PM
  #11  
Member
Thread Starter
 
91BlkRS's Avatar
 
Join Date: Feb 2002
Location: Maine
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
i don't have a volt meter. and i'm almost 100% sure everything is tight. thanks for your help so far man, don't stop thinking of ideas, you're my only hope right now.
Old 02-06-2003, 01:19 PM
  #12  
Member
 
aklaim's Avatar
 
Join Date: Jul 2002
Location: San Jose, Ca
Posts: 318
Likes: 0
Received 0 Likes on 0 Posts
When you try to start the car what happens? Does it crank but just not turn over? Or does it not do anything? I need a little more info.
Old 02-06-2003, 01:19 PM
  #13  
Member
Thread Starter
 
91BlkRS's Avatar
 
Join Date: Feb 2002
Location: Maine
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
it cranks, but it doesn't turn over.
Old 02-06-2003, 01:23 PM
  #14  
Member
 
aklaim's Avatar
 
Join Date: Jul 2002
Location: San Jose, Ca
Posts: 318
Likes: 0
Received 0 Likes on 0 Posts
Check your coil, cap and rotor. If its cranking but not turning over then you might not be getting spark. If they look old and worn then replace them. Should be under 75 dollars for everything if you need to buy them
Old 02-06-2003, 01:25 PM
  #15  
Member
Thread Starter
 
91BlkRS's Avatar
 
Join Date: Feb 2002
Location: Maine
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
i'll probably regret asking, but what are they and where are they?
Old 02-06-2003, 01:29 PM
  #16  
Member
 
aklaim's Avatar
 
Join Date: Jul 2002
Location: San Jose, Ca
Posts: 318
Likes: 0
Received 0 Likes on 0 Posts
Do you know what your distirbutor looks like? Its that thing at the back of the engine that has all of the spark plug wires going to it and the wire to the coil. BEFORE you start pulling all of the wires off, make a diagram and label them so you put them back in the right place. That top piece that all of the plug wires go to is your cap. Remove that and look inside to see if all of the contacts are worn down. Now inside you should see a 2" piece of plastic with a metal tip. Thats your rotor. Pull that off gently. It maight take some force, but it will come off. One of the wires you pulled off goes to the coil. Follow that wire to the coil and inspect it.
Old 02-06-2003, 02:00 PM
  #17  
Member
Thread Starter
 
91BlkRS's Avatar
 
Join Date: Feb 2002
Location: Maine
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
any other ideas?
Old 02-06-2003, 02:02 PM
  #18  
Member
 
aklaim's Avatar
 
Join Date: Jul 2002
Location: San Jose, Ca
Posts: 318
Likes: 0
Received 0 Likes on 0 Posts
Not at the moment......
Old 02-06-2003, 02:20 PM
  #19  
Member
Thread Starter
 
91BlkRS's Avatar
 
Join Date: Feb 2002
Location: Maine
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
does anybody have suggestions?
Old 02-06-2003, 02:27 PM
  #20  
Supreme Member

 
89RsPower!'s Avatar
 
Join Date: Apr 2002
Location: New Jersey
Posts: 3,552
Likes: 0
Received 5 Likes on 5 Posts
Car: 86 Corvette, 89 IROC, 1999 TA
Engine: 350, 350, LS1
Transmission: 700r4, 700r4, T-56
Axle/Gears: 3.07, 373, 4.10
im not quite sure what your sayin.. do you mean the car just keeps on cranking but it doesnt start? if so have you checked fuel pressure and checked for spark?

Last edited by 89RsPower!; 02-06-2003 at 03:07 PM.
Old 02-06-2003, 02:29 PM
  #21  
Member
 
91bluemetalicRS's Avatar
 
Join Date: Nov 2001
Location: waco, TX
Posts: 242
Likes: 0
Received 0 Likes on 0 Posts
while your checking the plug wires, coil, cap and rotor check out the ignition module. They crap out every now and then. Did you ever get the alt. checked out? It only takes 5 minutes at dummy zone to tell you if it is good or bad. If not pull it off and take your alt. battery and ignition module to get checked out. Might as well rule all of this out especially since this is easy stuff to pull off and put back on.
Old 02-06-2003, 02:31 PM
  #22  
Member
Thread Starter
 
91BlkRS's Avatar
 
Join Date: Feb 2002
Location: Maine
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
where's the ignition module and where can i get this stuff checked out?
Old 02-06-2003, 04:57 PM
  #23  
Member
 
91bluemetalicRS's Avatar
 
Join Date: Nov 2001
Location: waco, TX
Posts: 242
Likes: 0
Received 0 Likes on 0 Posts
ignition module is inside the distributor. You will have to remove the distrutor cap to see it. There are wires plugged into it and it looks like this
http://www.holley.com/HiOctn/ProdLin...A/891-103.html

everything can be tested at autozone, pep boys, any locall store. Hope this helps out.
Old 02-06-2003, 04:57 PM
  #24  
Supreme Member

 
ZZ28ZZ's Avatar
 
Join Date: Apr 2002
Location: Austin
Posts: 1,353
Likes: 0
Received 3 Likes on 3 Posts
Car: 82 Z-28
Engine: 383 TPI
Transmission: 700R4
To narrow down the starting problem;
Pour a LITTLE bit of gas (or spray a little starting fluid) into the intake, then try to start it.
If it runs for a second or 2, you have a fuel supply problem.
If it dosen't even try to start, it's probably an ignition/electrical problem.

BTW, "turning over" and "cranking" are the same thing. It implies the eng is rotating cause the starter is turning it.

With a voltmeter, check the batt voltage with eng running.
Check the alternator output with eng running. (It's the big terminal on the back of the alt. Usually has a rubber boot over it)
Check the voltage at the fuse panel under the dash.
All the points should read abt the same.

If the fuse panel voltage is low, but the others are OK, check the wire on the starter solenoid that connects to the same post as the battery cable. Look for the wire being loose, coroded, or showing signs of being hot (melted or cracked insulation).

If you discover a difference between the alt output post voltage and battery voltage, you have a bad connection between the alt and battery.

Does the low batt light come on with the ignition in the "off" position, or with the key to "on" and eng not running?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
RS Reaper
Electronics
4
10-17-2018 07:52 PM
FormulasOnly
TPI
95
07-23-2018 08:47 AM
Rocket-Doc
TBI
1
11-14-2015 02:08 PM
racereese
Tech / General Engine
14
10-03-2015 03:46 PM
aaron7
Interior
1
09-30-2015 09:15 AM



Quick Reply: what the hell happened???



All times are GMT -5. The time now is 03:53 AM.