u/burg3r7

To remove the intake manifold and get to the knock sensors, do you have to drain coolant and if so how much of it? Just 5 quarts or will I have to flush the whole system?

Hello C5 folks, I currently own a 1998 C5 and want to replace the knock sensors+intake gaskets myself. I've tried to do other repairs like the valve cover gaskets but certain things about the 1998 model year are different from the 99-04 cars making the repairs more difficult and there aren't any youtube tutorials on a 1998 car in specific. Was just wondering if anyone has replaced the knock sensors on a 1998 C5 and is there any differences in this job between the 1998 and the 99-04 cars that I should be worried about?

I’ve recently bought a 1998 C5 and the exhaust smells like unburnt fuel. I’m pretty sure it’s not the cats going bad because those would cause a sulfur smell, but I’m not sure what it could be. I need to fix one of the knock sensors and my mechanic said that could be causing it due to unburnt fuel, but the smell is persistent from startup and doesn’t go away when the car is warmed up. Doesn’t seem to be too serious but if you think you know what the problem may be let me know!

I just bought a 98 c5 and i need replacement tires asap since the ones on it have dry rot. What is the best brand for corvettes and are there any sites or places where I can get tires for a good price?