Join Date: Sep 2005
Location: Brown Summit, North Carolina
'84 Spider Vacuum Sensor "whistles"
The car has been running fine for a long while. I'm replacing the carpeting throughout the cockpit. Removed the passenger side panel to expose the Motronic device and the Vacuum Sensor. The vacuum hose was NOT connected to the sensor. When I started the engine, the vacuum hose "sucks" very well. When I connected it to the Vacuum Sensor, the sensor "whistles". If I hold my finger on the Sensor opening on the bottom with the hose connected the whistling stops. If I drive it whistles, except when I get to a hight RPM. I've driven it with the hose connected and with the hose disconnected, and cannot see any performance change.
What do you think has happened?
Ray Kiszely'84 Spider Veloce