A question for anyone who has a cavalier

I have a 94 cavalier and I need to know the diameter of the main fuel line, So I can patch it with a hose
Thanks

Don't know, but make sure you use high pressure fuel line and double clamp it on both ends. I'm assuming you're patching a cracked section of metal fuel line. My guess would be 5/16" or 3/8".

Try a Chilton's manual.