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Author Topic: '79 ballast resistor  (Read 1410 times)

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Offline enzo

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'79 ballast resistor
« on: April 15, 2017, 06:30:50 PM »
I had some burned wires at the voltage regulator. I repaired them being careful to splice the new wire into the connector one wire at a time.
The engine runs with key in start.  When key is released, it dies.  I don't know where the ballast resistor is and want to check if is good.
Can somebody help me with the ballasted thing!

Enzo.
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Offline pinto_one

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Re: '79 ballast resistor
« Reply #1 on: April 15, 2017, 07:46:14 PM »
The ballast resistor is behind the speedometer, it's a special wire with plug ends on each end , but I would check the plug at the ign module before you start removing things ,  you have a two wire plug with a red and white wire , one is hot when you turn on the ign switch , the other is a bypass from the start solenoid that bypasses the resistor to keep the voltage up when cranking , look for corrosion in the plug , (green ) if no volts with key on , bad switch or as you say bad resistor , (rare)  also could be a bad box , if it is org they had problems back in 75 to late 76 , look for a blue tab one the box where the wire come out , that was the fix back hem , later Blaine
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76 Pinto sedan V6 , 79 pinto cruiser wagon V6 soon to be diesel or 4.0

Offline enzo

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Re: '79 ballast resistor
« Reply #2 on: April 15, 2017, 11:01:17 PM »
Blaine,  Thanks for the info. I failed to mention that this is a 2.3, not that should make much difference. Will look into that.
Took a break from the car. 
Worked all day (9:30-5:00, no meals) swapping alternators, ECU's, regulators, triple checking connectors, triple checking wiring, checking for slipped timing, and, fuel supply. I even changed the ignition switch. Nothing!!!  I'm lost. I don't know what I did wrong, but, it won't run.  I will start up tomorrow early as this my daily driver.  Thinking about getting a later model of something for daily.
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Offline enzo

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Re: '79 ballast resistor
« Reply #3 on: April 15, 2017, 11:44:08 PM »
Oh!! Man!!  I even got sunburned today, on my face and of course the top of my head, from being outside so long here in the Pacific NW.

Have good weekend everybody.
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Offline enzo

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Re: '79 ballast resistor
« Reply #4 on: April 19, 2017, 08:58:56 AM »
Thanks Blaine for the help.  Not sure I would have found all the problems.
New regulator and alternator and everything works.
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Offline pinto_one

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Re: '79 ballast resistor
« Reply #5 on: April 19, 2017, 11:34:48 PM »
No problem , glad I could help you , later Blaine
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76 Pinto sedan V6 , 79 pinto cruiser wagon V6 soon to be diesel or 4.0
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