DoctorJ

I had them installed in a 1968 M20G model a couple years ago and removed the flood lights. Nu-Lites was great to work with as I had to modify a couple to make them fit and ended up grinding through the bezel. They replaced them at no charge.

My 1979 201 only has the annunciator light for vac problems. During a recent trip, the light started flashing, but instruments all worked fine during the 3.5 hour trip. It made no difference if I used the alternate vac source - instruments still fine, but light remained on. I am planning to test the system with a vac gauge, but want to know if there is a sensor/swithch in the system that might be acting up. If so, where might I find it, and how do I test it? Thanks for all replies!