# What's Up with my Dad's Lincoln **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** towncar, lincoln\ **Created:** [March 10, 2013, 7:47pm UTC](https://community.cartalk.com/t/whats-up-with-my-dads-lincoln/77912 "2013-03-10T19:47:00Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Bill\_from\_Tampa](https://avatars.discourse-cdn.com/v4/letter/b/f05b48/32.png) [@Bill\_from\_Tampa](https://community.cartalk.com/u/Bill_from_Tampa)\ **Post date:** [March 10, 2013, 7:47pm UTC](https://community.cartalk.com/t/whats-up-with-my-dads-lincoln/77912/1 "2013-03-10T19:47:00Z")
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!!! ---
**Author:** ![lion9car](https://avatars.discourse-cdn.com/v4/letter/l/59ef9b/32.png) [@lion9car](https://community.cartalk.com/u/lion9car)\ **Post date:** [March 10, 2013, 7:55pm UTC](https://community.cartalk.com/t/whats-up-with-my-dads-lincoln/77912/2 "2013-03-10T19:55:56Z")
You could start pulling fuses, especially the one for the blower motor, and see if that changes anything. ---
**Author:** ![Caddyman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/caddyman/32/23_2.png) [@Caddyman](https://community.cartalk.com/u/Caddyman)\ **Post date:** [March 10, 2013, 8:04pm UTC](https://community.cartalk.com/t/whats-up-with-my-dads-lincoln/77912/3 "2013-03-10T20:04:11Z")
Yeah, the heater / AC blower runs all the time and is a prime suspect…When it happens, set the heater fan to “High” and see if that changes the sound…Next would be a vacuum leak in the heater / AC control system…Manipulate the HVAC controls and see that changes the sound… ---
**Author:** ![UncleTurbo](https://avatars.discourse-cdn.com/v4/letter/u/e9a140/32.png) [@UncleTurbo](https://community.cartalk.com/u/UncleTurbo)\ **Post date:** [March 10, 2013, 9:00pm UTC](https://community.cartalk.com/t/whats-up-with-my-dads-lincoln/77912/4 "2013-03-10T21:00:03Z")
Can you give us more info? If the motor is running but the car is not moving, do you get the “continuous shrill whistling sound”? Does the sound change at all when the motor is rev’d up a bit with the car sitting still in neutral? Do you just get the sound when the car is moving? Does the sound change when the car is moving, more speed results in a higher pitch? ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [March 10, 2013, 9:24pm UTC](https://community.cartalk.com/t/whats-up-with-my-dads-lincoln/77912/5 "2013-03-10T21:24:12Z")
The noise might be coming from the automatic parking brake release vacuum motor. Remove the vacuum hose from the motor and plug the hose. If the noise goes away the diaphram in the motor is leaking. Tester ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [March 12, 2013, 1:52am UTC](https://community.cartalk.com/t/whats-up-with-my-dads-lincoln/77912/6 "2013-03-12T01:52:45Z")
one more question; does this car have air suspension? ---
**Author:** ![Big\_Marc](https://avatars.discourse-cdn.com/v4/letter/b/9d8465/32.png) [@Big\_Marc](https://community.cartalk.com/u/Big_Marc)\ **Post date:** [March 12, 2013, 4:15pm UTC](https://community.cartalk.com/t/whats-up-with-my-dads-lincoln/77912/7 "2013-03-12T16:15:50Z")
how about the parking brake release? ---
**Author:** ![Stoveguyy](https://avatars.discourse-cdn.com/v4/letter/s/9e8a1a/32.png) [@Stoveguyy](https://community.cartalk.com/u/Stoveguyy)\ **Post date:** [March 12, 2013, 4:25pm UTC](https://community.cartalk.com/t/whats-up-with-my-dads-lincoln/77912/8 "2013-03-12T16:25:50Z")
does your dad hear it only? do you?