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My 99 Tahoe almost killed me twice today


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cmathis2
New User

Oct 21, 2012, 3:31 PM

Post #1 of 5 (1177 views)
My 99 Tahoe almost killed me twice today Sign In

I have a Chevy Tahoe, 1999 with almost 200k miles on it. It is the 8 cylinder. I commute a lot. Therefore my cruse control is used quite a bit. I was driving down the highway and when the highway changed to 2 lane, I stepped on the brake to disengage the cruise control. It was sluggish and it took quite a press on the brake to disengage it. I thought that was very weird that it took great effort to get the cruise control to stop. I wasn't going too fast though. When I got back on the expressway, I set it again. Speed limit here is 70. I again attempted to disengage the cruise control and not only did it NOT disengage, the truck sped up much to my horror. So in the middle of a 3 lane I was forced to plant both feet on the brake almost to the floor in the middle of traffic, thank God it was Sunday and not as much traffic as normal, in order to disengage the cruise control. Needless to say, I won't be using the cruise control.

Can someone help diagnose the problem? Is it just the cc or is it something worse that's going to catch up with me later?

Any help would be really appreciated because I had visions of dropping my transmission in the middle of the expressway just to be able to stop.

Thank you, Chris


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Oct 21, 2012, 5:18 PM

Post #2 of 5 (1149 views)
Re: My 99 Tahoe almost killed me twice today Sign In

Cruise control should deactivate using the brake pedal or by the cruise control switch. Could be a problem with the brake switch not canceling cruise control, the module is acting up, the cable is binding, and etc. Going to have to have it checked out to see what is going on. Don't recommend you using it until the problem is found.

Anytime you have a vehicle with unattended acceleration, either put the transmission into neutral or turn the ignition off (not to the locked position). Can't count on the brakes to stop the vehicle.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Oct 21, 2012, 5:19 PM)


cmathis2
New User

Oct 21, 2012, 5:50 PM

Post #3 of 5 (1145 views)
Re: My 99 Tahoe almost killed me twice today Sign In

Thanks very much, I have had the brake switch replaced about 8 months ago, and this is very recent. Will follow up after I take it to the shop! Thanks very much!


Discretesignals
Ultimate Carjunky / Moderator
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Oct 21, 2012, 5:52 PM

Post #4 of 5 (1144 views)
Re: My 99 Tahoe almost killed me twice today Sign In

Your welcomeWink

Let us know how things turn out.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


nickwarner
Veteran / Moderator
nickwarner profile image

Oct 21, 2012, 6:01 PM

Post #5 of 5 (1142 views)
Re: My 99 Tahoe almost killed me twice today Sign In

When your brakes didn't take it off cruise, why didn't you reach up on the turn signal arm and flip the switch to OFF? Two footing your brakes against an engine made to keep pulling will only overheat your brakes and cause them to fade, leaving you with no brakes and then it will succeed in killing you. Agree with DS, don't use it until you can determine why this happened.






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