If you find oil in your intake manifold, it's not something that should be ignored, but what has caused it isn't always clear ...

Simply remove the valve and spray the cleaner into the openings while blowing compressed air into the inlet port ... One ...

Later designs of the Mazda rotary engine included two more valves for greater air intake when needed at higher ... a Group C sports prototype racing car that won the 1991 24 Hours of Le Mans ...

It has a pivoting butterfly valve or throttle plate to control the airflow to the intake ... air filter changes; you should do this every 15,000 to 30,000 miles. When the throttle body in your car ...