Originally Posted by
zj96sc
The stop leak stuff coats the inside of the system with goop in an attempt to plug the leak - contaminates shop's evacuation equipment which is why they won't touch your system once you use it. Just makes a mess of the internals and cannot be removed without swapping every single component and line...i.e. nightmare.
Just get regular old R-134a...autozone, advance, napa, walmart, etc should all have it.
I'd also recommend the manifold gauge set for high and low readings + fill - assume you have a single gauge measuring high side only.