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8/20/17 4:20pm - Original Message: '73 Vette will not start'
pa c3 corvette fan
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Joined: 8/20/2017
Posts: 5
I just installed a new wiring harness under the hood of my 73 stingray. (csb) Using a volt meter I checked and I have electricity to the altenator, to the starter, up to the distributor cap, but the car will not start. It acts like the car is not in park. When I turn the key it does not crank. The lights work, the battery is good, just no start. A while back I changed the distributor from points to HEI. I tried in park and in neutral. I put the car in reverse and hte back up lights come on.  Any suggestions where to look for the problem?
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8/20/17 5:24pm - Reply: 'Re: 73 Vette will not start'
73shark
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.

Joined: 7/9/2003
Posts: 394
Welcome to the forum. Do you have 12 volts from the battery to the starter solenoid? Does the starter solenoid engage when you turn the key to the start position?

____________________________________

1973 L-82 4 spd

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8/20/17 6:38pm - Reply: 'Re: 73 Vette will not start'
pa c3 corvette fan
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Yes, I have 12 volts from the battery to the starter soliniod. No engagement of the starter. When I turn the key nothing visiable happens. It's just like not having it in park. I get a 12 volt reading on the meter when it si attached at the distributor.
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8/20/17 7:08pm - Reply: 'Re: 73 Vette will not start'
73shark
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.

Joined: 7/9/2003
Posts: 394
Are you are you getting 12 volts to the solenoid activation terminal when you turn the key to the start position?

Another thing to try is to hold the key in the start position while you run the shift lever from Park slowly through all of the gears to see if you get anything to the starter solenoid that way. It could be your neutral safety switch is out of adjustment.

|UPDATED|8/20/2017 5:08:54 PM (AZT)|/UPDATED|


____________________________________

1973 L-82 4 spd

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8/21/17 4:36am - Reply: 'Re: 73 Vette will not start'
pa c3 corvette fan
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Joined: 8/20/2017
Posts: 5
Thank you for the advice, I will check the soliniod later this week. Work gets in the way of car play.  I have already checked the neutral safety switch and it is in good working order. I have also had the suggestion to check the ignition switch on the steering column, which I will get to later this week. I will report back progress by this weekend.
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8/21/17 7:50pm - Reply: 'Re: 73 Vette will not start'
73shark
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.

Joined: 7/9/2003
Posts: 394
Good luck.  I didn't mean the neutral safety switch was bad, just possibly out of adjustment.

____________________________________

1973 L-82 4 spd

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8/23/17 10:57pm - Reply: 'Re: 73 Vette will not start'
stingrayjim jr Lifetime Member
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SHELBYVILLE, TN - USA

Vette(s):
1976 L48 auto

1978 L82 4speed

1994 LT1 6speed

Joined: 7/5/2002
Posts: 3934
Looking over a wiring diagram, looks  like a purple wire that goes to the starter solenoid is the wire that engages the starter...  so, with the key switch in the start position, there should be 12 volts on this wire.  If all was working prior to replacing the wiring harness,  then obviously, there is something either not connected, or broken wire...   

here is a link to the wiring diagram..

https://www.corvetteforum.com/forums/attachments/c3-tech-performance/47909232d1440002576-starter-wiring-part-2-help-1971-wiring-dia-20chevrolet-20corvette-20wiring-20question-20for-20wipers.jpg



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StingrayJim
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Stingray's '76                             StingrayJr's '78                           Lil Red '94

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8/24/17 8:55pm - Reply: 'Re: 73 Vette will not start'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#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: 19454
First, since you did replace the harness, make sure you have the starter wired properly. The large purple wire goes to the terminal on the solenoid closest to the engine. This purple wire comes from the neutral safety switch(automatic), or the clutch switch(standard). On the other side of whichever switch you have is a purple/white stripe wire that goes to the ignition switch.
I would first verify the purple wire is on the inside terminal of the solenoid. If that is correct, then check for battery voltage on that terminal with the key in the "Start" position. No voltage in start? Disconnect the firewall pass-thru on the new harness, where it bolts to the fusebox, and make certain none of the terminals are damaged in any way.
My suspicion is you either have the solenoid wired wrong, OR there is an issue with the connection at the firewall pass-thru. Ouch

____________________________________
Joel Adams
C3VR Lifetime Member #56    
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8/25/17 11:58am - Reply: 'Re: 73 Vette will not start'
pa c3 corvette fan
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Joined: 8/20/2017
Posts: 5
Everybody, thank you for the advice. I will get back to the Vette later next week. The Corvette car show is in Carlisle this week and I intend to go. I will post my progress next week.
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8/26/17 6:45pm - Reply: 'Re: 73 Vette will not start'
emarchington Gold Member
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Jefferson Twp, PA - USA

Vette(s):
1980 L82 Black T-Top

Joined: 8/27/2016
Posts: 3
Don't forget to be sure the starter is grounded. If you are checking for 12vdc reference your ground from the meter directly to the starter casing. This could also help in identifying an open ground to the starter. Hope this helps

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8/29/17 12:55pm - Reply: 'Re: 73 Vette will not start'
pa c3 corvette fan
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I found the problem last night and it was not obvious either. The starter was wired correctly. It ended up being a fault in the purple wire, defect. Once I corrected that, it started first time. I will be replacing the harness again as soon as they send me a new one.
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8/29/17 9:01pm - Reply: 'Re: 73 Vette will not start'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#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: 19454
This was in the new harness??? Angry
 Hope they take care of it for you, and happy you found the problem, even tho it means doing the job again. Thumbs Up

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Joel Adams
C3VR Lifetime Member #56    
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             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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