Cruse control acts erratic when engaged

Your cruise control module under the hood. Works off a vacuum. It connects to you throttle. Eather a vacuum line is lose or has a hole or the vacuum boost that holds your throttle is bad

Many times a bad brake light switch will prevent the cruise from engaging. But your best bet is to get a shop manual and follow the step by step tests. Check with your local library to see if they have online access to a repair manual

Check that the brake light is functioning correctly. If the speed control is receiving that the brake pedal is depressed it will not engage.


Hope this helps?

well the cruse control has a cruse control module check that out but for the the turn signals and dash light if you already replaced the fuse maybe the lights burned out or you have a bad ground somewhere

I guess the cruse is'nt working? You first need to look it over to see if everythings hooked up. Did it work for you before or you haven't seen it work? The switch on the dash will light after turning it on but the car has to be running for it to turn on . Does the light light? if not check the fuses and see if thier any blown? To check to see that everything is hooked up find the throttle body, one cablr goes to the gas pedal and the other goes to the cruse, follow this cable to the cruse unit and see if that unit has all it's wires and hoses connected. To check you remove them and reconnect them looking into the plug or hose for dirt rust bent pins. The hoses can crack on the inside and leak which will make it not engage. Follow these hoses to where thier connected to the engine and the brake pedal as they can split and be disconnected there too. The brake pedal switch has to work too as does the clutch switch ( if it has a clutch) If the brake lights don't work niether will the cruse. The hi mount brake light if the bulbs fail the cruse won't work. The switch on the steering wheel can get disconnected too as it's on a clockspring circuit as the steering wheel has to turn. Is the airbag light on? if it is and the horn does'nt work either it's likly that the clockspring is broken, If the horn works and the airbag light cycles like it's suposed to then the clockspring is likly OK. The speedometer has to work too as the speed senser that works it also works the cruse.If everything is working your problem could be more seriuos but it's not likly as this unit is quite reliable.

there is one under the dash it is in the top row ether a 15 or 20 my car did the same dose your cruse light come on if so it some thing else

Does your turn signals, high headlight beam work? Also, does the AC function through the dash vents and not the defrost vents?

My cruise control quit and I found it was the vacuum lines running to the servo.

replace the switch itself. its happened to me. same thing.

hi there
you will find a switch some where near the dash light dimmer switch that will say off and on
what you need to do

1. have the car going in a forward moton and doing 40kph or more
2. when you have reached the desired speed that you wish to set you need to turn the cruse control on then at the strearing wheel you will see a button saying "set"
3. once the light on the dash bord has come on then you can take your foot off and it should remain at the speed you set it at.

now some tips and did you know

1. when you have set a speed you can increase it by pressing the plus or minus button to either increase or decreas your speed and it will automatically remember it
   
2. when you want to over take and you have your cruse set at a speen you can use the exelaretor to go faster and once you have passed you can press resume to go back to the speed you where doing before you applyed more power
   
3. did you know cruse control is more economical then usng the exelarator it can save you fuel.
4. do not use cruse control in wet weather as it can cause a skid if you hit a p[uddle of water laying on the road
   
5. to stop the cruse form working just put your foot on the break

hope this helps
ricko

Check the air control hoses for the cruise control.