[Elecraft] K2 BFO problem - need suggestions

[Elmore's]

Greetings everyone,
    I have a 4+ year old K2 which has provided spotless service for me until 
recently. I began to have an audio issue in that on power up I would not 
have audio. I could get it back intermittently by either powering down and 
back up or by switching through the modes.
    In doing some basic troubleshooting I discovered that by touching the 
L33 coil in the BFO I would have audio again. While checking the BFO 
frequency using the internal frequency counter I discovered that when I did 
not have audio the frequency was reading either 4.5 or 5.5 Mhz depending on 
the sideband selected. After regaining audio the frequency would be back at 
4.9 MHz.
    Thus, it appears the oscillator is oscillating but at an incorrect 
frequency until I introduce my body capacitance.
    Can anyone help me in troubleshooting so that I could isolate the 
component or does anyone know of the most likely cause of such a problem?
Thanks fo your help,
Jim WA4YWM