my cruise control is not working when i hit the button on the panel i can hear a click near the passenger footwell so it seems to be on i replaced the switch because it didnt light up so i thought it was simply the switch but the used one i purchased doesnt work either. under the hood there is a vacuum hose hooked up to a plunger looking part on the throttle body but the plunger thing is cracked badly could this be the cause, i also have a high idle problem and replaced the tps could this vacuum leak be a cause of the high idle also?

 

Yes, yes a vacuum leak will cause all of those issues.
Cruise control works off or engine vacuum.
If a engine is getting more air than it is supposed to it will rev higher than it chould.
Replace that cracked hose, just take it off and take it to a autoparts store and have them cut you a new piece of hose, get it longer than you need.

 

thanks but its not the hose its what the hose is hooked up to on the throttle plate... im unsure of what its called so i dont want to mislead you i can only describe it as a ballist or ....... something of that sort i called it a plunger but the part is circular and cylindrical im sure you will know what it is called as soon as you see it.... thanks in advance for the help if you are familiar with the vacuum routing it is the only part on the throttle assembly that a vacuum hose hooks up

 

That's the cruise control actuator. If it's cracked just get a new one. AB has them
http://www.roverparts.com/Nxt/search...ruise+actuator
Also the cruise works off a vacuum pump located in front of the air cleaner and beneath the bottle jack (A PITA to get to)
As for the high idle, check for vacuum leaks. Could be the stepper motor (common)
Have you done an induction cleaning?

Eric

 

no i have not done induction cleaning...... i am short on cash at the moment so i will have to live with this prob for a week or so but i am going to do a full tune up because i need one badly including ignition wires, plugs , air filter, belt replacement, and full oil change. how do i check to make sure the vacuum pump is working can you give me a step by step. also can you show me a diagram of the stepper motor and give me directions as to cleaning that also. all the help is much appreciated fellas

 

Read through the write up section, there is a how to on the throttle body cleaning.

 

Testing cruise control:

https://landroverforums.com/forum/sh...cruise+control

Eric