Q: On my 85 Carrera the dome light works erratically on the driver’s door and not at all from the passenger’s door. Sometimes they work and sometimes not. If I operate it manually, it lights up. Any idea why? I notice that the rubber boots that cover the switches don’t look too good either. — Carlos
A: When it rains, water runs down the “A pillar” where the switches are mounted. The rubber boots keep water out and prevent corrosion at the contacts. To fix this erratic switch issue, remove the rubber boot, unscrew the switch and spray the contacts with electrical contact cleaner that you can buy at Radio Shack. Reinstall the switch and I bet they will work fine. Install new boots (they cost about $4.00) and they will work well for years. — MC