CUTLASS SUPREME harrnes problem

ricardo · March 17th, 2008, 08:36 PM

i got a problem with my cutlass engane and light harrnes my car is a 1987 i have got one from a 1984 cutlass supreme it did not fit my car has a v8 350 chevy motor can i use one off a monte carlo ss will it fit i cant find one off a 1987 cutlass

Jim's rare 80 · March 18th, 2008, 04:53 AM

Hi. Any G-body harness will work, as long as it also had a Chev V8 Motor. If you pull one yourself, label every plug when you remove it. It will save more time than it takes. Best of luck.

joe_padavano · March 18th, 2008, 05:52 AM

If you're only changing out the under-hood harness, I'll caution that the wire assignments in the firewall connector may not be the same between years. While I don't have firsthand knowledge of the G-body harnesses, I DO know that the 69 and 70 Cutlass engine and light harnesses under the hood are different. I used a 70 harness on one of my 69s and the specific wire locations in the connector are different. You need a good wiring diagram, or at least a thorough side-by-side comparison of the two harnesses at the firewall connector.

Of course, the "right" answer is to stick with an Olds motor...

March 17th, 2008, 08:36 PM	#1 (permalink)
ricardo Junior Member Join Date: Nov 2007 Posts: 16	CUTLASS SUPREME harrnes problem i got a problem with my cutlass engane and light harrnes my car is a 1987 i have got one from a 1984 cutlass supreme it did not fit my car has a v8 350 chevy motor can i use one off a monte carlo ss will it fit i cant find one off a 1987 cutlass

March 18th, 2008, 04:53 AM	#2 (permalink)
Jim's rare 80 Registered User Join Date: Feb 2007 Posts: 209	Hi. Any G-body harness will work, as long as it also had a Chev V8 Motor. If you pull one yourself, label every plug when you remove it. It will save more time than it takes. Best of luck. __________________

March 18th, 2008, 05:52 AM	#3 (permalink)
joe_padavano Super Moderator Join Date: Mar 2007 Location: Northern VA Posts: 4,402	If you're only changing out the under-hood harness, I'll caution that the wire assignments in the firewall connector may not be the same between years. While I don't have firsthand knowledge of the G-body harnesses, I DO know that the 69 and 70 Cutlass engine and light harnesses under the hood are different. I used a 70 harness on one of my 69s and the specific wire locations in the connector are different. You need a good wiring diagram, or at least a thorough side-by-side comparison of the two harnesses at the firewall connector. Of course, the "right" answer is to stick with an Olds motor... __________________ Joe Padavano 64 Jetstar 88 Conv 66 442 L-69 Conv 68 W-30 69 H/O 69 442 70 W-30 72 442 84 Custom Cruiser 86 Caprice wagon (w/307 Olds)

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