The car is a 1995 SW-2. I removed the oil filler cap while the engine was idling, and pressurized exhaust gas was emitted through the opening. Oil filler cap contained emulsion, and white vapor has been coming from the tailpipe upon start-up, which btw has been sporadically difficult (acts like a flooded engine). What would cause the space under the valve cover to become pressurized by exhaust gas?
- posted
17 years ago