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1985 ram charger no spark.

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Old 12-06-2018, 10:44 PM
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Default 1985 ram charger no spark.

I have a 1985 ramcharger with a 318. 2wd. It needed a new starter so it sat for about 6 months. I put a new starter in it about a month ago. And now it has no spark. The truck ran great when I parked it last. It just needed a starter. And now that it has a new one. I can’t get it running. Where do I start? Really wanting to get it running again. Thanks.
 
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Old 12-07-2018, 10:05 AM
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A few things you can check...
>put a test light on the coil to see if there is power (with key on)
>Remove the ECM and be sure its ground (under the mounting screws) is good.
> check to see that the ballast resistor is warm/hot with the key on for a few minutes

Both the B/R and ECM are shown in the picture... my '79 D100
 
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Old 12-08-2018, 05:49 PM
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Can you point out where the ecm is and where the ballast is? I don’t have a lot of knowledge of these older vehicles.
 
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Old 12-09-2018, 08:47 AM
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In my picture the ballast resistor is that white block on the upper right. and the ECU/ECM is on the left diagonally. See the picture.

This is the normal ignition set up, but there are other configurations. You need to post a picture of what you have....

.so we know we are on the same page.
 
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Old 12-09-2018, 11:52 AM
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The balast is getting warm when the key is on.
 

Last edited by Tanner Manno; 12-09-2018 at 11:58 AM.
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Old 12-09-2018, 12:24 PM
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It's a resistor, it'll do that.
 
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Old 12-09-2018, 12:59 PM
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Originally Posted by HeyYou
It's a resistor, it'll do that.
yeah I know. I was just letting him know because he said if it was working it would get warm.
 
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Old 12-09-2018, 05:56 PM
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Originally Posted by Tanner Manno

yeah I know. I was just letting him know because he said if it was working it would get warm.
Ok, that makes more sense then.
 



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