How do I know if my poppet valve is bad?
How do I know if my poppet valve is bad? Symptoms of a bad poppet, if stuck "closed" would typically be an overheat at mid/lower rpms (and wot of course, but would be apparent at lower rpms as well). If stuck "open" you might have a crappy idle, hard start/cold start. Your symptoms are not "typical" of a poppet issue. Is a poppet valve normally open? Poppet-type solenoid valves are two-way, normally open or normally-closed valves. What does the poppet valve do? A poppet valve (also called mushroom valve) is a valve typically used to control the timing and quantity...