I HAVE A 1970 CADILLAC COUPE DEVILLE, MY CAR IS DRAINING MY BATTERY. IT ALSO WILL ONLY START IF I KEEP PRESSING THE GAS AS THE KEY IS TURNED. THE CONVERTIBLE ONLY WORKS SOMETIMES AND WELL AS THE HORN. THE VENTS WONT COME ON. MY MECHANIC THINKS THIS IS BECAUSE OF LIGHT HARNESS AND ENGINE HARNES. HELP!!!!!!!!!!!!!!!!!!!!!!

 

i might agree.

wiring and harnesses are absolutely the top #1 issue on all cars.

there is a FAQ named: e-ghosts, intermittent, dielectric

suggest that you take a look at it.

lol

https://www.cadillacforum.com/forumid_64/tt.htm