No Voltage to Start - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

 
LinkBack Thread Tools Display Modes
post #1 of 9 (permalink) Old Apr 6th, 09, 03:02 PM Thread Starter
Gold Lifetime Member
mike
 
Join Date: Sep 2007
Location: hyattsville, md
Posts: 87
No Voltage to Start

My car started fine (a 1969 Camaro) until I decided to paint the alternator bracket that also serves as the main ground. When I remounted the bracket I didn't have sufficient bare metal contact from the bracket to the mounting bolts because of the fresh paint. So, the car wouldn't start. So, I cleaned and sanded around the bolt holes to re-establish a good ground. But, now each time I try to start the car the dash lights along the bottom go out when I turn the key and the car doesn't start. When I insert the key to "on" the lights (brake light and oil light) start out normal, then I hear a click at the voltage regulator and the dash lights go out and no voltage ever reaches the starter to turn the engine. I also have no lights to the headlights, radio, interior, etc. when this happens. I have to remove the ground wire and touch it to the valve covers a couple of time to re-establish the circuit to normal. Then I reconnect the ground wire to the bracket, turn the key, and the whole thing repeats itself again. I even tried connecting the ground wire directly to the engine block but that doesn't help either - still same problem. Can somebody help me?
watzignition is offline  
Sponsored Links
Advertisement
 
post #2 of 9 (permalink) Old Apr 6th, 09, 03:35 PM
Gold Lifetime Member
John
 
Join Date: Dec 2008
Location: Louisville, Ky.
Posts: 3,403
Re: No Voltage to Start

Do you also have the body grounds?
john68 is offline  
post #3 of 9 (permalink) Old Apr 6th, 09, 03:51 PM
Super Moderator
Bess-68's rule
 
Everett#2390's Avatar
 
Join Date: Sep 2000
Location: Va Beach VA
Posts: 32,203
Garage
Re: No Voltage to Start

Move battery ground cable to engine block.
Remove and clean all connections on junction block and horn relay buss bar.

Give a man a rescued dog for the health of both their souls. May 2017 ROTM Winner - Thank you!
'
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CUBS - 2016 World Series Champions - Thank you, Joe Madden enjoy your next chapter.
Everett#2390 is offline  
 
post #4 of 9 (permalink) Old Apr 6th, 09, 03:57 PM
Senior Tech
Brandon
 
Join Date: May 2004
Location: Monroe, NC
Posts: 2,124
Garage
Re: No Voltage to Start

Quote:
Originally Posted by Everett#2390 View Post
Move battery ground cable to engine block.
Remove and clean all connections on junction block and horn relay buss bar.
X2, your still not getting a good ground to support the amps required to run the starter.

Brandon J. licence 1NASTY67

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Nantooch is offline  
post #5 of 9 (permalink) Old Apr 6th, 09, 04:32 PM Thread Starter
Gold Lifetime Member
mike
 
Join Date: Sep 2007
Location: hyattsville, md
Posts: 87
Re: No Voltage to Start

No. The body ground got fried trying to support starting. But, though fried the body ground seemed to be enough to support the interior lights. At this point even turning on the headlights is enough to kill the circuits.

Where is the junction block located?
watzignition is offline  
post #6 of 9 (permalink) Old Apr 6th, 09, 07:05 PM
Senior Tech
 
Join Date: Mar 2002
Location: Austin, TX, USA
Posts: 5,277
Re: No Voltage to Start

Bad connections are high resistance. At low currents you can hardly tell they're there. At high currents they act like an open circuit. So what you're seeing with the interior lights is not a sign of a good circuit, just a circuit good enough to run a few light bulbs.

Dave
========================
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
dnult is offline  
post #7 of 9 (permalink) Old Apr 6th, 09, 07:17 PM Thread Starter
Gold Lifetime Member
mike
 
Join Date: Sep 2007
Location: hyattsville, md
Posts: 87
Re: No Voltage to Start

I followed all of your advice: I cleaned all connections; replaced body ground; and kept in mind "high resistance" & "not enough amps to start". Everything helped. I turned out to be the real culprit - I failed to tighten the hot battery terminal, and it took painting my alternator bracket to bring out that I had a bad connection. Thanks one and all.
watzignition is offline  
post #8 of 9 (permalink) Old Apr 6th, 09, 09:09 PM
Super Moderator
Bess-68's rule
 
Everett#2390's Avatar
 
Join Date: Sep 2000
Location: Va Beach VA
Posts: 32,203
Garage
Re: No Voltage to Start

Kewl! you're welcome. Junction block next to the battery on the radiator support.

Give a man a rescued dog for the health of both their souls. May 2017 ROTM Winner - Thank you!
'
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CUBS - 2016 World Series Champions - Thank you, Joe Madden enjoy your next chapter.
Everett#2390 is offline  
post #9 of 9 (permalink) Old Apr 7th, 09, 05:47 PM
Senior Tech
 
Join Date: Mar 2002
Location: Austin, TX, USA
Posts: 5,277
Re: No Voltage to Start

Glad you got it going Mike. Thanks for reporting back. Sounds like your electrical system is getting in shape. I know my 68 had a daisy chain of bad connections. First I'd find a bad ground and then the fuse terminal would flake out due to corrosion. I'd fix the fuse terminal and a bulb socket would act up. Once the weakest link was eliminated, the next weakest would give me fits. I scratched a bald spot in my head since I knew I had found a problem and fixed it only to find something else.

Dave
========================
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
dnult is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
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.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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