74 Headlight Vacuum Schematic / Diagram
03-14-2003, 02:44 PM
#1
2nd Gear
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Member Since: Feb 2003
Location: Columbus GA
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74 Headlight Vacuum Schematic / Diagram
Can anyone tell me where I can find a 74 vacuum schematic / diagram - on the web - or a troubleshhoter's guide -
I have read that the canister on the 74 is located in the front - and I believe this is where my leak is - However - I would like to go through the entire system to be sure -
I have read that the canister on the 74 is located in the front - and I believe this is where my leak is - However - I would like to go through the entire system to be sure -
03-14-2003, 10:36 PM
#3
Burning Brakes
Re: 74 Headlight Vacuum Schematic / Diagram (Stewart's74)
There is a good diagram and troubleshooting guide here.
http://www.corvette-101.com/
http://www.corvette-101.com/
03-17-2003, 10:20 AM
#4
Re: 74 Headlight Vacuum Schematic / Diagram (Brad74)
Brad,
Be sure to open a separate topic with the update when you find the source of your leak.
I've had similar concerns on mine. I never was able to pull vacuum using my itty-bitty Mighty Vac pump on the front crossmember tube thingy.
My leak turned out to be the headlight modulator relay thingies - now the headlights go up and down just fine.
Be sure to open a separate topic with the update when you find the source of your leak.
I've had similar concerns on mine. I never was able to pull vacuum using my itty-bitty Mighty Vac pump on the front crossmember tube thingy.
My leak turned out to be the headlight modulator relay thingies - now the headlights go up and down just fine.
