74 Headlight Vacuum Schematic / Diagram
Thread Starter
2nd Gear
Joined: Feb 2003
Posts: 2
Likes: 0
From: Columbus GA
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 -
Safety Car
Joined: Aug 2000
Posts: 3,943
Likes: 44
From: Florham Park NJ Port Credit Ontario
Burning Brakes
Joined: Jun 2002
Posts: 837
Likes: 3
From: Texas
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/
Burning Brakes
Joined: Nov 2001
Posts: 1,191
Likes: 1
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.
