C3 Vette Registry - The Best Resource on the Net for C3 Vettes! C3 Vette
Forums -> C3 Electrical
Not Logged In! Login or Register!  Users Online: 15 / Help 
Features  Find C3 Parts on ebay in only 2 or 3 clicks!  | Add YOUR C3 to the Registry

Supporting Vendors
Volunteer Vette Products
Mid America Motorworks
Bair's Corvettes

C3 of the Month
None Current
Enter Yours Today!
Online C3 Show
C3s are Registered

Vanity Plates
Featured Links

Buy Now
Corvette Fifty Years (Hardcover)
Corvette Fifty Years (Hardcover)

Corvette 50th Anniversary
Corvette 50th Anniversary

Corvette Magazine - $19.99 for 8 issues
Corvette Magazine
Only $19.99 for 8 issues

Corvette Masterpieces: Dream Cars You'd Love to Own (Hardcover)
Corvette Masterpieces: Dream Cars You'd Love to Own (Hardcover)

| Hide Signatures and Profile Pics

 New Topic New Topic Post Reply Reply New Poll New Poll Search     Search Page 1 [2]  
Support C3VR!
Suport our advertisers
9/11/12 12:39pm - Reply: 'Re: Shorts'
Adams' Apple Lifetime Member
Lifetime Member
- Send Private Message

Duncanville, TX - USA

#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19509
Well...it were worth a shot. Unhappy

In the pic of your NSS, the two purple wires are for the starter. One of those wires comes from the ignition switch, and the other goes down to the inner terminal of the starter solenoid. If you have a multi-meter, check them for voltage with the key turned to "Start"...one of them should have 12v. If not, then your problem lies somewhere between the ignition switch and the NSS. If you do get 12v on one of them, then you can run 12v to the other terminal, and you should hear the solenoid at least click. If it does not click, or crank, then you need to make sure your battery cable is connected to the center terminal of the solenoid. With the 12v battery feed, and 12v on the purple wire, it has to crank. If it does NOT, then you have a starter, or solenoid problem.

Just to clarify, when checking voltage at the NSS, you'll need to be testing the vehicle harness side...not the switch itself. If it is unplugged, you will of course not have any power on any of the wires on the NSS.

|UPDATED|9/11/2012 9:39:49 AM (AZT)|/UPDATED|

Joel Adams
C3VR Lifetime Member #56    
My Link

(click for Texas-sized view!)

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
9/11/12 4:18pm - Reply: 'Re: Shorts'
Former Member
- Send Private Message

Woodland, WA - USA

1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1152
I found that the interlock relay is located passenger side engine bay above heater core cover, their was a couple of ways people bypassed the relay.
1 they spliced the lt green wire to the purple wire behind the relay mount
2 was they would open up the relay and soldered the contacts inside
To start over if you have a test light I would do it this way
chk power at purple white wire at NSS no power back to ign sw
chk power at purple wire at NSS in park position or nuetral position no power NSS bad
chk power at Lt Green wire interlock relay NSS in position from last step no power maybe bulkhead connector or wireing
 if interlock relay was bypassed you should have power at purple wire if no power issue is interlock circuit
chk power at starter S terminal closest to engine block if power since starter was changed you would have a grounding problem for engine block to frame to battery
here is the interlock diagram
Joel please double ck me

Bob R
 Reply Reply  Quote Reply w/Quote
9/11/12 4:49pm - Reply: 'Re: Shorts'
Former Member
- Send Private Message

San Antonio, TX - USA

Little on the rough side right now, with new paint and new interior it will be looking fine!

Joined: 8/18/2012
Posts: 53
Found the problem... after the store sent me the wrong NSS, i cleaned up the old one and put it back on, i then took the starter off and had them test it, it tested good and they recomended checking the fuseable links in the line, after putting the starter back on and checking the one link on the wire going to the engine side of the starter she cranked up just fine... no idea how that was causing the problem...


I hope to one day be as knowledgeable as most the guys on here... but till then I'll have to just keep asking the questions with the obvious answers....
 Reply Reply  Quote Reply w/Quote
9/12/12 1:09am - Reply: 'Re: Shorts'
tb2k82ce Lifetime Member
Lifetime Member
- Send Private Message

Lemon Grove, CA - USA

1982 C3 Collectors Edition 44000 miles, sat in the sun most of it's life, My wife purchased it for me for fathers day in 2007 from her girl friend that had it for 19 years. It is on the road again. I'm retired but it is now my daily driver.

Joined: 10/17/2007
Posts: 2008
Did you ever see the movie Gremlins? 

Shocked  That apparently was your problem Gremlins.  That is it. 

By the way I learned a lot from following this post.  As I'm sure others did.

 Reply Reply  Quote Reply w/Quote
9/12/12 2:47pm - Reply: 'Re: Shorts'
Former Member
- Send Private Message

York, PA - USA

1969 daytona conv. all original 350 350 380 4 sp w/air..and hard top

Joined: 5/18/2010
Posts: 1518
there are a bunch of things to check when cars don't work!  Glad it was just a link.


My first parade at Carlisle 2010
 Reply Reply  Quote Reply w/Quote
 New Topic New Topic Post Reply Reply New Poll New Poll Search     Search Page 1 [2]  
 Forums -> C3 Electrical
(Moderator: Adam Wartell, Norsky, Adams' Apple)

Official C3 Vette Registry Community:
Home | Forums | Email | Who's Online | Clubs | Events | Member Stats

Other Official C3 Vette Registry Areas:
Members | Research | Shop | My Account | About C3VR

Corvette is a registered trademark of the General Motors Corporation(GM) & Chevrolet Motor Division. Vette Registries, LLC is responsible for all site content (except for member submitted content or where otherwise noted) and does not claim or imply that Chevrolet or GM is responsible for Official C3 Vette Registry content. Vette Registries, LLC is independent from GM and is not affiliated with, sponsored or supported by GM.  Copyright/trademark/sales mark infringements are not intended, or implied and are in fact used to support GM, Chevrolet and Corvette

Official C3 Vette Registry content is Copyright 2001-2018, Vette Registries, LLC. Content may not be reused without written consent. All Rights Reserved. NS

Corvette (Vette) Model Years on this site: 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 30