Does anyone know what this is off 71 chevelle - Chevelle Tech
Electrical & Wiring Troubleshooting electrical problems.

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post #1 of 10 (permalink) Old Jul 1st, 20, 8:14 PM Thread Starter
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Does anyone know what this is off 71 chevelle

Can anyone tell me what this is? Was getting ready to start up a new rebuilt 454 and I think this stopped me. It’s broken, and might have nudged it while putting the engine in. It blew a fuse on the TCS solenoid fuse. Is this the TCS solenoid? Thanks for any help!
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post #2 of 10 (permalink) Old Jul 1st, 20, 8:23 PM
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Re: Does anyone know what this is off 71 chevelle

are those terminals at each end looks like a ballast resistor
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post #3 of 10 (permalink) Old Jul 1st, 20, 8:24 PM
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Re: Does anyone know what this is off 71 chevelle

looks like ballast resistor
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post #4 of 10 (permalink) Old Jul 1st, 20, 8:26 PM Thread Starter
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are those terminals at each end looks like a ballast resistor
Would this stop the engine from turning over? It is plugged into the coil so I suppose so?
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post #5 of 10 (permalink) Old Jul 1st, 20, 8:36 PM
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Re: Does anyone know what this is off 71 chevelle

It is a ballast resistor, used from 1955 up until 1962 or so, when they were replaced by a 7 - 1/2 foot long silver stranded resistor wire inside the engine wiring loom. The resistance value between both terminals with no other connections, should be 1.80 0hms, +/- 1 percent.


The 1971 Chevelle would have used a resistor wire inside the engine wiring loom, not that remote mounted resistor. If course, if some person hacked the wiring loom up, then, sure, it might have been a fix for a far worse condition.
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post #6 of 10 (permalink) Old Jul 1st, 20, 10:47 PM
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Re: Does anyone know what this is off 71 chevelle

Normally found on Mopars!!
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post #7 of 10 (permalink) Old Jul 2nd, 20, 1:19 AM Thread Starter
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Re: Does anyone know what this is off 71 chevelle

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Normally found on Mopars!!
Interesting. Seemed pretty stock but I guess not....
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post #8 of 10 (permalink) Old Jul 2nd, 20, 1:21 AM Thread Starter
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Re: Does anyone know what this is off 71 chevelle

Quote:
Originally Posted by Dave Ray View Post
It is a ballast resistor, used from 1955 up until 1962 or so, when they were replaced by a 7 - 1/2 foot long silver stranded resistor wire inside the engine wiring loom. The resistance value between both terminals with no other connections, should be 1.80 0hms, +/- 1 percent.


The 1971 Chevelle would have used a resistor wire inside the engine wiring loom, not that remote mounted resistor. If course, if some person hacked the wiring loom up, then, sure, it might have been a fix for a far worse condition.
Interesting. Seemed to be pretty much all stock but I guess not. Everything else seems fine before I got the engine rebuilt.
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post #9 of 10 (permalink) Old Jul 2nd, 20, 1:39 AM
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Re: Does anyone know what this is off 71 chevelle

What do you mean by it won't start? The starter won't turn or the starter turns but the engine won't run? What type of distributor are you running? Are all the other electrical devices receiving power? Headlight. horn?

Do you have power to the wire that was connected to the resistor? If so, can you check it with a meter with the ignition on.

Your engine should still turn over without the resistor wire connected to the coil. If the stock yellow wire from the R terminal from the starter to the coil is still in place and the resistor wire is disconnected, the starter will still turn over and the yellow wire will supply power to the coil and the engine will fire until you release the start switch.

If your staRTER IS NOT ENGAGING WHEN YOU TURN THE IGNITION TO START, YOUR NOT GETTING POWER TO THE STARTER SOLENOID THROUGH THE PURPLE WIRE WHICH LEADS TO THE IGNITION SWITCH THROUGH YOUR NEUTRAL SAFETY AND/OR CLUTCH SWITCH AND THEN TO THE IGNITION SWITCH. SORRY ABOUT THE CAPS. I'm on my clunker laptop.
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post #10 of 10 (permalink) Old Jul 6th, 20, 2:03 PM
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Re: Does anyone know what this is off 71 chevelle

Back in the '80's, some thought it was cool to install an Accel Super Coil with their points distributor. The coil came with a resistor that looked like that, to use in addition to the resistor wire.
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