# Cruise Control fades **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [October 8, 2008, 10:38am UTC](https://community.cartalk.com/t/cruise-control-fades/20497 "2008-10-08T10:38:46Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![CaptainK](https://avatars.discourse-cdn.com/v4/letter/c/e8c25b/32.png) [@CaptainK](https://community.cartalk.com/u/CaptainK)\ **Post date:** [October 8, 2008, 10:38am UTC](https://community.cartalk.com/t/cruise-control-fades/20497/1 "2008-10-08T10:38:46Z")
The cruise control on my 98 Pontiac Sunfire GT fades after a few minutes from setting it. If I set it at 65 it will set and stay but after a few minutes it will start to slowly fade down. If I hit the button to increase the speed it will do so. But then again it will start to fade. What is bad causing this to happen? Thank-you. ---
**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\ **Post date:** [October 8, 2008, 3:15pm UTC](https://community.cartalk.com/t/cruise-control-fades/20497/2 "2008-10-08T15:15:14Z")
If you have a vacuum motor for the throttle position there may be a small leak in the vacuum system that is causing the trouble. ---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [October 8, 2008, 6:20pm UTC](https://community.cartalk.com/t/cruise-control-fades/20497/3 "2008-10-08T18:20:02Z")
Yeah its the cruise control vacume servo. Just get a new one or live with it. There is a small valve inside that holds or releases vacume as needed to maintain speed. This takes a set after a while and won’t hold the vacume anymore. You can take it apart and try to refurbish it like I have done a number of times but easiest is just to get a new one. ---
**Author:** ![common-sense-answer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/common-sense-answer/32/716_2.png) [@common-sense-answer](https://community.cartalk.com/u/common-sense-answer)\ **Post date:** [October 8, 2008, 8:07pm UTC](https://community.cartalk.com/t/cruise-control-fades/20497/4 "2008-10-08T20:07:20Z")
I Bought A Used … … vacuum servo from the salvage yard for 5 bucks. It took almost 5 minutes to install on a Dodge. I just guessed mine was the servo. The cruise didn’t work at all. It worked forever after the transplant. I agree, it sounds like vacuum is bleeding off on your cruise. Check the vacuum (hose) line, too.