serpentine system help

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cartruck

Not-quite-so-new-guy
Mar 21, 2013
31
0
6
34
Maryland
Hi i have been getting parts for a serpentine system and i think i have everything figured out. Except for the alternator wiring i read some threads on it but im confused. I know there is a adaptor for the plug an my truck didnt have a factory guage. When i got the set up i grabed the plug for the alternator so i could splice it in. That was befor i knew how much was involved so i will just get the adaptor but the plug i got only has 1 wire on it and the adaptor looks like it has more than that. Is it right? I just want to make sure i get all the right parts for the swap befor i start. I drive the truck daily an dont want to be waiting for parts. With the adaptor harness is it all plug and play or do i need to do more wiring? Any help is appreciated thanks.
 
Thanks but link isnt working for me probably something with my pc. I got the set up from a 90s pick up by the way if that helps.
 
Yes that looks just like what i have but when i click the instructions it keeps asking me to download the instructions when i try to download them the same window keeps coming up asking to open the file or save it and wont let me do eather but thanks again for trying
 
Ok i think i almost got this figured out i found how to wire the plug myself but i keep reading about 4 wires on the plug and i only need to use 2. The plug i got wile at the junkyard only has 1 wire and i can see that thats all it ever had. Did i just grab one from a different kind of alternator? Eather way i am still thinking of getting the adaptor instead of wiring myself. But im wondering, i pulled the dummy light from the dash when i put a guage in the truck would i be ok to just get the harness with the resistor in it an leave the light out? Or should i get the one without the resistor an put the buld back in? Thanks for help.
 
What are you working with? Might help people give you better answers.
 
Sorry never thought to post that its a 79 el camino with a 86-87 305 from a 2wd pick up the serpentine set i got from a 90 pick up.
 
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