... spark plug was bad, if misfire moves to cylinder #5 then plug wire is bad, if misfire stays on #7 then suspect #7 coil pack or fuel injector, a vacuum leak at intake manifold gasket around cylinder #7 or (god forbid) a mechanical issue with that cylinder. ⋅ Cleared codes and test drove ...
When you say no major vacuum leaks, are there any? A small vacuum leak can cause a random misfire and it can be intermittent. I had one on my 02 that would only throw misfires intermittently when cold.
... brakes sometimes 20 or less. It's been happening for two weeks. And about a month and a half I changed the radiator. They said something about a vacuum hose but to be honest how would I solve that issue if it was a vacuum hose?
thats what im going to do 1/3 in the crankcase, 1/3 down the vacuum line and 1/3 down the fuel tank...ok so you shoudlnt stall it out then correct? and when you poured 1/3 of the container shut it off for at least 5 mintues?