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#1 |
Registered User
Join Date: Jul 2011
Location: Portland, OR
Posts: 5
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Fires but won't stay running
It starts but as soon as I let off the key is sputters out.
I think I've narrowed it down to a loss of power to the Coil. If we jump the coil it runs like a top. Is this a Solenoid problem? With the key in the "on" position should the yellow wire leading from the solenoid to the coil be hot? |
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#2 | |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,490
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Re: Fires but won't stay running
Quote:
LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - Last edited by LockDoc; 09-24-2014 at 11:56 PM. |
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#3 |
Registered User
Join Date: Dec 2008
Location: OKC, OK
Posts: 29
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Re: Fires but won't stay running
Run a new wire from "ign unfused" (I think that's how it's labeled) to coil. Non resistor if HEI
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#4 | |
Registered User
Join Date: Jul 2011
Location: Portland, OR
Posts: 5
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Re: Fires but won't stay running
Quote:
I dropped inside to test the Ignition un-fused pins on the fuse block and they didn't get hot either which makes me think there is a problem with the switch. Now for the stuuuupid question. How do you get the switch out? I got the finish ring to loosen but it wont go further than 1/4" loose. Does the little hole on the face of the ignition release anything? I tried to push a paper clip in to get something to move but I fear that I F'd something up when I was prying on the finish ring. Back to the coil. I have a black wire and a red wire running to the bottom of the distributor and a yellow wire to the starter on the Red side. I assume when I get a hot ignition switched wire I need to have it on the Yellow and Red side too! |
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#5 | |
Registered User
Join Date: Jun 2014
Location: Glendale, Arizna
Posts: 1,642
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Re: Fires but won't stay running
Quote:
Don't take the switch out until you have a reason. Check for a power supply to the switch, in this case likely a fuseable link. |
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#6 | |
Registered User
Join Date: Jul 2011
Location: Portland, OR
Posts: 5
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Re: Fires but won't stay running
Quote:
There is no link from the back side of the fuse block to the coil. Do you know how to get the switch out? |
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#7 |
Registered User
Join Date: Dec 2008
Location: OKC, OK
Posts: 29
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Re: Fires but won't stay running
Should have added that terminal in fuse block
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#8 |
Registered User
Join Date: Jul 2011
Location: Portland, OR
Posts: 5
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Re: Fires but won't stay running
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#9 | |
Registered User
Join Date: Jun 2014
Location: Glendale, Arizna
Posts: 1,642
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Re: Fires but won't stay running
Quote:
"No we have power through the switch all the way to the starter. There is no link between the key and the fuse block". That's right, if you mean "fusible link". "There is no link from the back side of the fuse block to the coil". Right again, if you mean "fusible link". "Do you know how to get the switch out"? No, I've never had to replace one. I'd recommend verifying the fusible link is intact, and you can refer to the diagrams in this link. I like the one by vette vette, you will have to scroll down. http://67-72chevytrucks.com/vboard/s...d.php?t=624417 Or, if you just want to replace your ignition switch, here you go. http://67-72chevytrucks.com/vboard/s...d.php?t=343215 Last edited by mechanicalman; 10-01-2014 at 01:45 PM. Reason: spelling |
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#10 | |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,490
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Re: Fires but won't stay running
Quote:
http://67-72chevytrucks.com/vboard/s...d.php?t=462981 Any questions post 'em up.... LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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#11 |
Registered User
Join Date: Dec 2008
Location: OKC, OK
Posts: 29
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Re: Fires but won't stay running
Also make sure that terminal getting 12V with key on
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#12 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: Fires but won't stay running
if you have an hei ignition you should have eliminated the yellow wire as part OF THE PROPER INSTALLATION OF THE HEI
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#13 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: Fires but won't stay running
I need to stick my neck out here again just to note that you cannot find a resistance wire with a voltmeter (unless it's under significant load) by just checking voltage at the end. Stick a resistor on a battery. Measure voltage. Same as without the resistor. Current flow is reduced, so if there's a load the voltage would drop, but not just sitting there. If you could isolate the wire and check for resistance with the ohmmeter part of your meter, that'd find it.
I'm just afraid people will measure voltage at the factory resistance wire, find 12+V, and decide it's not a resistance wire. If this were a cold-start issue I'd say choke pull-off, but pretty clearly electrical if the description is accurate. If IGN UNFUSED isn't hot with the key in the RUN position then that's the issue, but before you rip the lock out, are you certain there's power going INTO it? You can check that at the connector on the back far easier than pulling it apart.
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