99' vortec 350 CJ7, wiring starter & 2 solenoids?? - JeepForum.com
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Unread 02-07-2010, 06:02 PM   #1
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1984 CJ7 
Join Date: Feb 2010
Location: Brandon, MS
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99' vortec 350 CJ7, wiring starter & 2 solenoids??

Ok, I am installing a 99' vortec 5.7 350 from a suburban into my 84' Jeep CJ7. I got my engine harness made by a company and only wires to hook up are the purple starter wire, ignition hot, battery hot, ground, and fuel pump wire. Of course the rest of the sensor wires just plug in. My question is with the starter and solenoid? Since the 350 has the solenoid on top of the starter and my harness hooks to the purple wire on starter, can I just eliminate my jeep solenoid that was on the fenderwell? The only other cable on the chevy starter of course goes straight to the positive side of the battery. No need for two solenoids is there?
I tried leaving the jeep fenderwell solenoid unhooked but then my ignition wires in the factory jeep harness would not work. Can someone give me details and/or a diagram of how they did theirs?

Last edited by skhcj7; 02-07-2010 at 06:06 PM.. Reason: title change
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Unread 02-07-2010, 07:37 PM   #2
wrongway92407's Avatar
1986 CJ7 
Join Date: Nov 2009
Location: Devore Ca.
Posts: 483
Shayne, I believe that I hooked the Blue wire from the jeep solenoid to the purple starter wire, it should only have power in start. I used the red 10 gauge with the white tracer for the hot ignition. I found a power strip in the pic a part and ran a 6 gauge to it and I then used that for my battery and used a couple of the other terminals for ACC.s. I clipped those 2 wires about 6" out of the fire wall connector and hooked up the chevy. After I got every thing working I removed the fire wall connector and removed the rest of the wires. I didn't cut any except for the 2, someone will need a harness some day. I won't pickup my jeep from my son until tomorrow evening and will double check the wires. By the way who did you have make your harness and what kind of trans are you using?
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Unread 02-08-2010, 05:24 AM   #3
Mike Romain
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1986 CJ7 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant, Nova Scotia, Canada
Posts: 17,229
Why reinvent the wheel? Even the CJ's with the GM engines have the fender solenoid, it works and is easier to hook up than having all the wires down below where a tree branch can easily take them out.
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Unread 02-08-2010, 09:03 AM   #4
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1978 CJ5 
Join Date: Jan 2009
Location: Beach City, Ohio
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I've heard where people will actually use a Ford setup on their Chevy since the one on the starter has a tendency to get cooked, being under the headers of HP engines...

1978 CJ5 5.0HO/T177/D300, '86 D30/D44 WT axles, 'glass body, 31x10.5 BFG A/T, TDK galv'd frame - DD and weekend toy

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