New set of guages = no electric? - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

 
LinkBack Thread Tools Display Modes
post #1 of 9 (permalink) Old Nov 28th, 07, 06:47 PM Thread Starter
Senior Tech
Matt
 
Join Date: Feb 2007
Location: In the garage
Posts: 102
New set of guages = no electric?

I just replaced 3 gauges (Oil Pressure, Temp, and Battery). They were aftermarket style gauges. I put in SunPro gauges.

The wires for the battery gauge and the oil line for the oil pressure gauge were all there, so it was just a matter of swapping them to the new gauge.

Now the trouble:

I hooked the battery back up (just had the negative off), and the battery gauge shows how many volts I have, right at 12. But thats the only thing that seems to have any type of power to it. I don't have any lights, no radio, and turning the key doesn't do anything. I unhooked the wires off the battery gauge and still didn't get anything.

The only thing that involved anything electrical was the battery gauge, and that was just a transfer to the knew gauge. I checked my fuses, and they all look pretty good - but even if one did go, I should still have lights, radio, or some form of engine noise?

What could be causing this? Thanks for any advice!
Fewski is offline  
Sponsored Links
Advertisement
 
post #2 of 9 (permalink) Old Nov 28th, 07, 06:52 PM
Senior Tech
 
Join Date: Feb 2007
Location: right of center
Posts: 993
Re: New set of guages = no electric?

what you called a 'battery gauge', is it a voltmeter or ammeter? if it was a an ammeter, it might be the circuit connector for the whole system. eliminate it from the circuit and see what happens.
guccieng is offline  
post #3 of 9 (permalink) Old Nov 28th, 07, 06:56 PM Thread Starter
Senior Tech
Matt
 
Join Date: Feb 2007
Location: In the garage
Posts: 102
Re: New set of guages = no electric?

Thanks for the reply. It is a voltmeter.
Fewski is offline  
 
post #4 of 9 (permalink) Old Nov 28th, 07, 07:12 PM
Senior Tech
Greg
 
Join Date: Sep 2007
Location: S. Florida
Posts: 1,222
Re: New set of guages = no electric?

Take your ground back off and check for corrosion,if that is all you did then it has to be a defective ground, unless the fusible link blew from the batt pos term to the radiator support junction block.

1969 RS/SS Vert

1031 Engineering llc
chops is offline  
post #5 of 9 (permalink) Old Nov 29th, 07, 10:38 AM Thread Starter
Senior Tech
Matt
 
Join Date: Feb 2007
Location: In the garage
Posts: 102
Re: New set of guages = no electric?

Quote:
Originally Posted by chops View Post
Take your ground back off and check for corrosion,if that is all you did then it has to be a defective ground, unless the fusible link blew from the batt pos term to the radiator support junction block.
Ground looks good. If the ground was bad, it wouldn't show how many volts, would it? Thanks for the reply.

This is strange.
Fewski is offline  
post #6 of 9 (permalink) Old Nov 29th, 07, 10:54 AM
Gold Lifetime Member
Jim
 
Join Date: Dec 1999
Location: Yorkville, Illinois USA
Posts: 22,121
Re: New set of guages = no electric?

Quote:
Originally Posted by Fewski View Post
Thanks for the reply. It is a voltmeter.
Was the old gauge that you replaced also a voltmeter?

It kinda sounds like you put a voltmeter in where an ammeter used to be.





To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
New website for my vert is coming together. Do ya like the slide show on the home page?
JimM is offline  
post #7 of 9 (permalink) Old Nov 29th, 07, 11:59 AM Thread Starter
Senior Tech
Matt
 
Join Date: Feb 2007
Location: In the garage
Posts: 102
Re: New set of guages = no electric?

Quote:
Originally Posted by JimM View Post
Was the old gauge that you replaced also a voltmeter?

It kinda sounds like you put a voltmeter in where an ammeter used to be.
That sounds about right... I got off the phone with SunPro and they were a great help with ideas and how it all works. Turns out what you said is what they also said, needless to say, I hooked up the Amp gauge and am about to take it for a ride to check out the temp gauge.

Thanks all.
Fewski is offline  
post #8 of 9 (permalink) Old Nov 29th, 07, 01:45 PM
Senior Tech
 
Join Date: Mar 2002
Location: Austin, TX, USA
Posts: 5,277
Re: New set of guages = no electric?

Quote:
Originally Posted by Fewski View Post
Ground looks good. If the ground was bad, it wouldn't show how many volts, would it? Thanks for the reply.

This is strange.
Not at all. A volt meter is a very high impeadance device meaning it doesn't take much amperage at all to make it register (micro amps in fact). A bad connection will have no problem making a volt meter register.

But, when you try to pull substantial current through a bad connection all voltage disapears because the resistance in the connection can't sustain the current demands.

Be careful with your meter. Volt meters and Amp meters are vastly different and if you do things incorrectly you could end up with a fire.

Dave
========================
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
dnult is offline  
post #9 of 9 (permalink) Old Nov 29th, 07, 01:59 PM
Senior Tech
Jon
 
Rodder's Avatar
 
Join Date: Jul 2006
Location: Roswell, GA
Posts: 1,431
Send a message via AIM to Rodder Send a message via Yahoo to Rodder
Re: New set of guages = no electric?

Quote:
Originally Posted by dnult View Post
Not at all. A volt meter is a very high impeadance device meaning it doesn't take much amperage at all to make it register (micro amps in fact). A bad connection will have no problem making a volt meter register.

But, when you try to pull substantial current through a bad connection all voltage disapears because the resistance in the connection can't sustain the current demands.

Be careful with your meter. Volt meters and Amp meters are vastly different and if you do things incorrectly you could end up with a fire.
Actually, the factory amp meter in our first gen Camaros is a low-voltage volt meter--it measures the voltage drop across the alternator battery wire between the alternator and the battery to approximate amperage. If he previously had an aftermarket ammeter that didn't use a shunt, then yeah you are correct.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
- LS1, T56, Hooker longtubes, Autokraft pan & mounts, GM LS7 clutch, Borla ProXS, Moser/Strange/Wilwood 9", Covans dash, UltraLite IIs, Procar Elites, Vintage Air GEN-IV, AGR 12:1 steering, Addco swaybars, Hydratech hydroboost
Rodder 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