electrical problem help
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
go back to the basics....clean battery connections, clean grounds, charge battery...use a test light and see where you have power....
Racer
Joined: May 2004
Posts: 259
Likes: 0
From: Eagle WI
More info would be helpful, like did it crank, make a clicking sound, etc.
If by no power you mean no voltage at starter, could be corroded battery terminals, broken cable, etc. If there is 12V @ starter batt. cable connection, then check fusible links, ignition switch, etc. Really need more details to narrow down the possibilities...
If by no power you mean no voltage at starter, could be corroded battery terminals, broken cable, etc. If there is 12V @ starter batt. cable connection, then check fusible links, ignition switch, etc. Really need more details to narrow down the possibilities...
Thread Starter
Heel & Toe
Joined: Apr 2005
Posts: 16
Likes: 0
Originally Posted by Todd68
More info would be helpful, like did it crank, make a clicking sound, etc.
If by no power you mean no voltage at starter, could be corroded battery terminals, broken cable, etc. If there is 12V @ starter batt. cable connection, then check fusible links, ignition switch, etc. Really need more details to narrow down the possibilities...
If by no power you mean no voltage at starter, could be corroded battery terminals, broken cable, etc. If there is 12V @ starter batt. cable connection, then check fusible links, ignition switch, etc. Really need more details to narrow down the possibilities...
put voltage meter on it.
Last edited by cvet77; Jun 24, 2005 at 10:56 PM.
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Originally Posted by cvet77
battery is in excellent shape will not turn over no voltage at starter
put voltage meter on it.
put voltage meter on it.
Racer
Joined: Apr 2005
Posts: 339
Likes: 1
From: San Diego CA
If you're certain that your battery is good, than it has to be the cables. (Check battery with voltmeter ~12.5 volts)
Either they're not making contact with the battery posts. (Clean posts)
The positive/negative cable(s) is cut/corroded. (Check each with an ohmmeter)
The negative ground from the frame to the block is bad (Check w/ohmmeter)
If the battery is good and there's no voltage at the starter, it's got to be cabling/cable connections...
Either they're not making contact with the battery posts. (Clean posts)
The positive/negative cable(s) is cut/corroded. (Check each with an ohmmeter)
The negative ground from the frame to the block is bad (Check w/ohmmeter)
If the battery is good and there's no voltage at the starter, it's got to be cabling/cable connections...
Drifting
Joined: Dec 2004
Posts: 1,345
Likes: 3
Assuming you have juice at the battery cable on the starter and the starter is OK the most likely causes would be related to no juice to the trigger wire on the starter:
corrosion at the main bulkhead connector that feeds the starter trigger wire (of all the connections there THAT was the first one to give out on my '69!!)
bad connections either to or from the ignition switch at the steering column
shot ignition switch
You should safely (neutral or park) hot wire the starter to see if it turns over before tearing too deeply into the wiring.
Good Luck!
corrosion at the main bulkhead connector that feeds the starter trigger wire (of all the connections there THAT was the first one to give out on my '69!!)
bad connections either to or from the ignition switch at the steering column
shot ignition switch
You should safely (neutral or park) hot wire the starter to see if it turns over before tearing too deeply into the wiring.
Good Luck!
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Racer
Joined: May 2004
Posts: 259
Likes: 0
From: Eagle WI
What's the voltage reading at the starter positive battery cable connection (the large one) and what's the voltage at the smaller terminal(s) with key in start & run positions? If I remember correctly, you need a minimum of 7.5 volts at "S" terminal or solenoid won't pull in. Do you hear the solenoid pull-in or click at all when trying to start?
Thread Starter
Heel & Toe
Joined: Apr 2005
Posts: 16
Likes: 0
Originally Posted by Todd68
What's the voltage reading at the starter positive battery cable connection (the large one) and what's the voltage at the smaller terminal(s) with key in start & run positions? If I remember correctly, you need a minimum of 7.5 volts at "S" terminal or solenoid won't pull in. Do you hear the solenoid pull-in or click at all when trying to start?
no solenoid doesnt do anything unless stick screw driver between posts on starter then it will turn over
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Originally Posted by cvet77
no solenoid doesnt do anything unless stick screw driver between posts on starter then it will turn over
Thread Starter
Heel & Toe
Joined: Apr 2005
Posts: 16
Likes: 0
Originally Posted by rihwoods
"unless stick screw driver between posts on starter then it will turn over"
Sounds like the spring in the solenoid...possibly...
Sounds like the spring in the solenoid...possibly...
lifetime warranty on that problem now solved after putting new
starter on, engine fired right up and it sounds awesome.
thank you all
Last edited by cvet77; Jul 7, 2005 at 08:07 PM.
Thread Starter
Heel & Toe
Joined: Apr 2005
Posts: 16
Likes: 0
Originally Posted by bobs77vet
so the solenoid does work....and the starter does crank....so it seems to me that you are not getting 12volts from the ignition switch to the solenoid .....check out your fusible links.