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Have an 89 gmc that cut out and stumbles at 16-17 mph and also cuts out when cruise control is applied

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Run away 2001 Grand Am


Brake switch is designed to shut cruise off when brake pedal applied, sounds like a defective brake switch, because when she applied the brakes it's supposed to cut power to cruise module, so either that is problem or your throttle cable had iced up and or both

Jan 22, 2013 | 2001 Pontiac Grand Am

1 Answer

What is the function of the cruise control, and when should i use it.


the cruise control is for expressway or throughway driving or any open highway ,it cuts down on fuel by not useing so much gas. it stays at a constant speed it depends where it is set too. after cruise control is set, you can cancel it anytime by turning it off or putting on the brakes. most cruise controls will not set below 40 mph. this is a feature to keep from using it in the city, or populated area. hope this helps you ! good-day !

Apr 13, 2012 | 2006 Toyota Corolla

2 Answers

How to fix cruise control


Cruise controls can cease to engage if the clutch or brake light cruise switch are out of adjustment. If this happens, try placing you foot under the clutch pedal (if equipped) and lift up on it (toward you) and hold it while engaging the cruise. If it now works, it will likely cut out when you remove your foot from under the pedal. Check the brake pedal in an identical fashion. Adjusting the switch at the pedals can often solve he problem. Some vehicles (Honda, Acura, Ford, to name a few) have a plastic insert that mounts in the pedal arm which presses against the switch. These can become brittle and fracture into pieces. My Acura has little pieces of blue plastic on the floorboard around the brake pedal one afternoon and I noticed the cruise didn't work. It was the pieces of the insert that had come to pieces preventing the cruise from coming on. I replaced the insert and no more problem with the cruise.

Mar 10, 2012 | 2003 GMC Sierra 2500HD

2 Answers

Troubleshoot cruise control for a honda civic 1996


my honda civic ex 1996 the cruise controle have a trouble when i push (on) the switch on the dash the green light stay off i dont have a cruise controle
i need help
Thank

Oct 10, 2010 | Honda Civic Cars & Trucks

2 Answers

I own a 2005 GMC Canyon Five CYL and the cruise control stopped working last niight. You push the button and no cruise. I checked the fuse and it is ok I exchanged with another 10AMP and no change still...


Start with the simple and check the fuses and the Stop lamp switch. Check your brake lights, if they're not working, the cruise won't work either. If they're not working, check the fuse for them, if the fuse is fine, then take it into the dealer, there's been a recall issued on the brake switch, so it should get fixed for free.
Cruise Control Disengaged
The powertrain control module (PCM) disengages the cruise control operation based on the signals from the following switches:

* The stop lamp switch
* The TCC brake/cruise release switch
* The clutch release switch, if equipped
* The cruise control On/Off switch

The TCC brake/cruise release switch and the stop lamp switch are mounted on the brake pedal bracket. When the brake pedal is applied, the normally closed TCC brake/cruise release switch opens and the normally open stop lamp switch closes. The PCM detects a low signal voltage on the TCC brake/cruise release switch signal circuit and a high signal voltage on the stop lamp switch signal circuit. When the clutch pedal is applied, the normally closed clutch release switch opens and the PCM detects zero voltage on the CCP switch signal circuit. The vehicle speed stored in the memory of the PCM will be erased when the cruise control On/Off button is turned OFF, or the ignition switch is turned OFF.

The Cruise Control System will disengage when the PCM detects that a driver override function has been active for approximately 60 seconds .

When the Cruise Control System is disengaged, the PCM sends a class 2 message to the instrument panel cluster (IPC) in order to deactivate the cruise control indicator.

Cruise Control Inhibited
The powertrain control module (PCM) inhibits the cruise control operation when any of the following conditions exist:

* A cruise control related DTC has been set.
* The vehicle speed is less than 40.2 km/h (25 mph) .
* The vehicle is in PARK, REVERSE, NEUTRAL, or 1st gear.
* The engine RPM is too low.
* The engine RPM is too high, with fuel cut off.
* The vehicle speed is too high, with fuel cut off.
* The system voltage is not between 9 volts and 16 volts .
* The Traction Control System (TCS) is active for more than 2 seconds .

Thank you for using Fixya and start with replacing the stop lamp switch. Even though the brake light work, it;s been known for that switch to cause your issue. that's way there was a recall for it.

Apr 01, 2010 | 2005 GMC Canyon

1 Answer

My 89 Mercedes 300e cruise control surges and cut off


Dirty wheel speed sensor on the front wheel clean or replace. Or it maybe the cruise control amp, if its that find a bone yard to get a replacement.

Mar 20, 2010 | 1989 Mercedes-Benz 300-Class

1 Answer

No brake lights-the turn signal, four way flashers work. The cruise control cancels when applying brakes. ?


Cruise control is suppose to cancel when brakes are applied.

Did you try just changing the bulbs?

If its not the bulbs I would have to say check the brake light switch at the pedal, it is a different switch than the cruise control cut out switch.

Nov 13, 2009 | 1996 GMC Suburban

2 Answers

2004 GMC sierra 5.3 eng 1500 transmission shutter 40-55 mph


I too have that problem. I own a 2005 GMC Yukon. Shutters between 40 + 55 mph. I thought for sure the stumble I felt was a plug or coil pack because it only does it under a load. With A/C on the whole truck shakes! But it wasnt the plugs or coil packs. Answers anyone?

May 21, 2009 | 2004 GMC Sierra

1 Answer

My truck stumbles then cuts out when accelerating


check fuel pressure if less then 55 p.s.i change fuel pump and fuel pressure regulator

Apr 08, 2009 | 1993 GMC Sierra C2500

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