Topic: headlight switch
in Forum: C3 Electrical
I recently had my dash apart to change the tach board and headlight
switch. I couln't open the headlight doors with the switch, I had to use the overide switch. After installing the switch I've had numerous
problems. at first the lights operated ok, but then they stopped working and I can hear air leaking from the switch, and I'm getting a
loud noise like a whining sound from the vacuum canister. I called ecklers who I ordered the switch from. they said they had a batch of defective switches and sent me a new one. I installed the new one but still have the same problem. Also anyone know what causing the loud noise which I also get when I turn the ignition key on to accessory.

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Joel Adams
C3VR Lifetime Member #56
My Link
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
It all started after removing dash and replacing headlight switch.
I may have loosened another vacuum line, or have another bad switch. are there any other vacuum relays close to the vacuum canister.

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Also, I have seen some vac. canisters develop a crack in them that will "whistle/wheeze/vibrate" when they get to a certain amount of vac. Might be worth checking the canister with a vac. pump to test the integrity of it. The new light switch may be allowing the system to hold enough vac. to make the canister "buzz", where it did not before, or opened up a crack that was just barely holding with the old switch on it. Hope this makes sense.



Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"