What is this part called??? Help

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jayyzf

jayyzf

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1971 dodge dart 225 L6 with automatic tranny...
So I jumped the Dart with another vehicle and pulled a rookie move by jumping it BACKWARDS for a split second. Now vehicle has crank but no start but IS getting fuel. Now I have no spark from coil and I think it's due to a part I can't figure out name for. It has a small wire from positive cable going to it then has wires going go ignition coil. What is this or does anyone have any suggestions? On fender well (location)
 
You need to do some serious clean up on those connections.....there is a lot of corrosion going on there and it will plague you no end with electrical problems to leave things like that. I would not bother working further until this is cleaned up; pull each wire and clean the connections with fine emery cloth or sandpaper and then re-install with a contact protective compound like Dow4.

This starter relay is not likely your problem; reversing polarity to it would not cause any issues that would be obvious from understanding what the part does. Since you have cranking it is basically working A-OK .

First check your fusible link to see if it is blown open; it is there to help protect the car's wiring. The fusible link is the large red wire from the large terminal on the starter relay that is going to the firewall connector. This is easy to check: with the battery charged, do you headlights work? If so, then the fusible link is not blown.

After that I would suspect that your ignition module has been blown; it would likely be quite easily damaged with reversed polarity. Also, once the car is running see if the alternator is charging right; the solid state voltage regulator would also be a good candidate to be blown with reverse polarity.

Download your car's schmatic diagram from mymopar.com.
 
nm9stheham said:
You need to do some serious clean up on those connections.....there is a lot of corrosion going on there and it will plague you no end with electrical problems to leave things like that. I would not bother working further until this is cleaned up; pull each wire and clean the connections with fine emery cloth or sandpaper and then re-install with a contact protective compound like Dow4.

This starter relay is not likely your problem; reversing polarity to it would not cause any issues that would be obvious from understanding what the part does. Since you have cranking it is basically working A-OK .

First check your fusible link to see if it is blown open; it is there to help protect the car's wiring. The fusible link is the large red wire from the large terminal on the starter relay that is going to the firewall connector. This is easy to check: with the battery charged, do you headlights work? If so, then the fusible link is not blown.

After that I would suspect that your ignition module has been blown; it would likely be quite easily damaged with reversed polarity. Also, once the car is running see if the alternator is charging right; the solid state voltage regulator would also be a good candidate to be blown with reverse polarity.

Download your car's schmatic diagram from mymopar.com.
Click to expand...

x2 on the fusible link
 
jayyzf said:
1971 dodge dart 225 L6 with automatic tranny...
So I jumped the Dart with another vehicle and pulled a rookie move by jumping it BACKWARDS for a split second. Now vehicle has crank but no start but IS getting fuel. Now I have no spark from coil and I think it's due to a part I can't figure out name for. It has a small wire from positive cable going to it then has wires going go ignition coil. What is this or does anyone have any suggestions? On fender well (location)
Click to expand...

usually when that starter solenoid goes the engine won't crank at all without jumping the two contacts.


you didn't fry the fuseable link did ya??
 
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