My Dad has a 1995 Lincoln Towncar that has developed a continuous shrill whistling sound inside the car when you start and drive. No amount of fiddling with any of the controls makes it go away…but …it does stop on it’s own, sometimes.
We have heard all kinds of theories about what it might be; including seat belt warning, turn signal flasher, short in the steering column, vacuum leak, etc. But short of committing to an expensive hourly rate to find the gremlin, we have been unable to solve the problem.
What do you suggest? THANK YOU!!!