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#949418 - 03/12/11 04:21 PM HELP! ballast resistor getting hot with key off!
1bad318 Offline
1bad440

Registered: 11/27/05
Posts: 1751
Loc: jacksboro,tn
just replace the harness under the dash of my 72 satellite,everything now works,but the ballast resistor started getting hot and smoking with the key off.i checked the harness,didnt melt anything.what would cause this?
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#949419 - 03/12/11 04:23 PM Re: HELP! ballast resistor getting hot with key off! [Re: 1bad318]
PlumCrazy73Dodge Offline


Registered: 07/18/03
Posts: 2112
Loc: New Jersey, US of A
somethin not grounded?

Two wires touching
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73 plumcrazy challenger - 318/904, edelbrock performer 600cfm carb, performer intake and cam. Eddy Alum. Heads 3.91 locker, Doug's headers, accurate ltd. exhaust
73 Cuda - Triple Black 340 4 speed
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#949420 - 03/12/11 04:29 PM Re: HELP! ballast resistor getting hot with key off! [Re: 1bad318]
RapidRobert Offline
Circle Track

Registered: 11/20/03
Posts: 34165
Loc: Lincoln Nebraska
pull a batt cable & w your VOM on ohms see where the main line at from the fusible link on inside is connecting to the blue (ign1) circuit. I'm giving kind of a vague answer but as said above something touching somewhere (bulkhead/ign sw etc). What was the prob that you replaced the underdash harness?


Edited by RapidRobert (03/14/11 02:03 PM)
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#949421 - 03/12/11 09:16 PM Re: HELP! ballast resistor getting hot with key off! [Re: RapidRobert]
Yancy Derringer Offline
mopar

Registered: 10/20/10
Posts: 606
Loc: Montana
You have a shop manual?

wiring diagram?

12v test lamp?

Yank all the push-on ends off your ballast/ ignition and the ECU, and probe with a lamp and SEE WHAT'S HOT. Everything should be dead with the key off.

Then find out which wire (color) it is and trace back to the bulkhead. Yank that section of the bulkhead connector off, make sure it's still hot at the bulkhead--that will eliminate a "welded" harness short under the hood.

Next thin I'd do is yank apart the connector going to the column/ ignition switch, to see if it's in there.

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#949422 - 03/13/11 11:02 PM Re: HELP! ballast resistor getting hot with key off! [Re: 1bad318]
reno340 Offline


Registered: 03/26/05
Posts: 386
Loc: Maryland
I highly reccomend one of these.
http://www.tooltopia.com/tool-aid-25300.aspx I Found a short with it in 10 minutes that had eluded me for 6 months.

Love this thing!!!!!

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If you can't run with the big dogs, stay on the porch!!

https://www.youtube.com/watch?v=_xQJtN1_6DU

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#949423 - 03/14/11 12:54 PM Re: HELP! ballast resistor getting hot with key off! [Re: reno340]
1bad318 Offline
1bad440

Registered: 11/27/05
Posts: 1751
Loc: jacksboro,tn
thanks guys.i replaced the under dash harness cause the old was hacked up.im gonna replace the engine harness with a new one from year one also
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