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Topic: Engine won't start

in Forum: C3 Engines


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Engine won't start (1/8)
 6/25/24 8:26am
BillKSGold Member
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Joined: 11/10/2012
Posts: 3

350 coupe, 4-speed. When I turn on the key, engine will not try to start No clicking sound, just a low buzzing sound. Battery good. Any suggestions fellow C3 members? Thank you. Bill from Kansas 



|UPDATED|6/25/2024 5:26:22 AM (AZT)|/UPDATED|
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Re: Engine won’t star (2/8)
 6/24/24 5:34pm
manchestersharkLifetime Member
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Equinunk, PA - USA

Vette(s):
1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.


Joined: 10/31/2007
Posts: 2429

How bout checking connections at the battery. Corrosion will halt transfer of current. Ground off First, on Last. Clean the terminals with warm water and baking soda mixed. Then clean lightly with a brass brush. 



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Re: Engine wonââ‚& (3/8)
 6/24/24 7:40pm
F4GaryGold Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1436

Put your car year in your info under your avatar.  Helps us figure things out.

Also where you live.



|UPDATED|6/24/2024 4:40:52 PM (AZT)|/UPDATED|


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Re: Engine won't start (4/8)
 6/24/24 8:01pm
Adam WartellLifetime Member
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Eagleville, PA - USA

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Used to own a 1979 Corvette now owned by JB79


Joined: 11/1/2001
Posts: 17924

F4Gary said:

Put your car year in your info under your avatar.  Helps us figure things out.

Also where you live.



If you click on his name, then you can click through to his registry entry with car details. 




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Re: Engine won’t star (5/8)
 6/24/24 9:24pm
BillHanna
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Cana, VA - USA

Vette(s):
1975 Stingray 71 350 engine Flat top pistons Sniper fuel injection Hyperspark ignition Vintage Air air conditioning Borgeson power steering box


Joined: 7/3/2016
Posts: 342

I assume  you do this, but just in case -- since this is a manual shift, make sure the clutch is pushed in all the way, and maybe check the clutch interlock switch.



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Re: Engine won't start (6/8)
 6/24/24 9:39pm
F4GaryGold Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1436

Adam Wartell said:
F4Gary said:

Put your car year in your info under your avatar.  Helps us figure things out.

Also where you live.



If you click on his name, then you can click through to his registry entry with car details. 



I know that.  Not my job. Much easier if it is already available.



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Re: Engine wonââ‚& (7/8)
 6/24/24 9:41pm
F4GaryGold Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1436

BillHanna said:

I assume  you do this, but just in case -- since this is a manual shift, make sure the clutch is pushed in all the way, and maybe check the clutch interlock switch.



Good point. Mine doesn't even have an interlock switch but his probably does.



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Re: Engine wonââ‚& (8/8)
 6/24/24 9:55pm
Adams' AppleLifetime 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: 20154

Being a '74, you have to deal with the seatbelt interlock, assuming it is still connected, and working. Sit in the seat, fasten seatbelt, clutch in/auto in park, before it will crank. Buzzer will sound if seatbelt(s) are not fastened before cranking. Also, if the interlock IS still on the car, and working, try pushing the over-ride button on the over-ride relay under the hood. This will allow it to start ONE time if the system is malfunctioning for whatever reason.

Of course, if the interlock system has been disabled, we have to look for other issues such as has been mentioned, checking terminal connections, etc. 

 



|UPDATED|6/24/2024 6:55:50 PM (AZT)|/UPDATED|


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