78 Alarm questions
Thread Starter
Safety Car
Joined: Sep 2009
Posts: 4,964
Likes: 28
From: Pittsburgh PA
78 Alarm questions
i have a 78 thats been sitting a very long time. trying to get it running. i put a fresh battery in and i get all my exterior and interior lights etc. when i try to start the car, the bendix will just touch the flywheel and then all power to the car is lost. unhook battery for a few minutes and power comes back. this is a 4 speed car if that matters. does the factory alarm work like this? there is no lock cylinder in the drivers side door. can i unplug the relay under the console to eliminate the alarm?
thanks guys
thanks guys
Le Mans Master
Joined: Aug 2006
Posts: 7,427
Likes: 1,560
From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
Check the 'starter extension harness' where it connects to the rest of the wires (near and behind the distributor).
https://willcoxcorvette.com/catalogs...tarter+harness
https://willcoxcorvette.com/catalogs...tarter+harness
Melting Slicks
Joined: May 2015
Posts: 2,365
Likes: 428
From: Cape Girardeau Missouri
No need to unplug the relay when the arming switch on the driver side door lock cylinder isn't installed/'connected. That switch is extremely finicky and failure prone. It typically fails "armed" and then people disconnect the alarm horn thinking that will stop the problem. Nope! That relay coil stays energized and it causes a battery run-down situation.
Racer
Joined: Nov 2017
Posts: 319
Likes: 125
From: Midwest
The C3 anti-theft alarm system didn't have an ignition interrupt until 1981. How well it worked then I don't know.
