Thread: Cruise Control Problems

Same here.

When questioned a Landy specialist mechanic about it he said assuming all vacume hoses are OK then the tension on the cable at the throttle body can have some bearing on things like this but I have not tried adjusting things myself to see what effect it has.

I have a td5 not V8 however my cruise control was all over the place it could not hold a constant speed. I cleaned the MAF sensor which was very dirty and that sorted the problem out. I assume that the cruise was struggling to drive the car like i was because the car was unpredictable.

Regards

Hi all,
I had the same problem in my 2003 D2 V8. The vehicle would surge on cruise, even when on the flat.
It felt like the cruise computer was over compensating on throttle, overspeeding then throttling back too far so you were forever going above and below your target speed. Pretty unpleasant for passengers as well.
The fix seems to be directly related to the amount of slack in the cruise cable (check the throttle cable as well).
Can't remember the factory spec for this play but it is minimal (other's can maybe look it up as my Rave CD has stopped working).
I adjusted the slack in both cables and the surge is now gone.
Hope this helps.
Andrew

Got the Rave disc working.

You adjust the throttle cable first with zero lash whilst ensure that the throttle still closes fully.

Then adjust the cruise cable so that the stop has a gap of between 0.5mm and 1.5mm.

5 minute job at most.

Thanks Andrew,
I checked the accelerator and cruise control cables, and both were very loose - probably streched with wear.
All now correctly adjusted. Quick and easy job!
I'll find out how well the cruise control works on the way to work tomorrow.
Thanks again,
Alan

Took the cruise control through its paces this morning and its perfect on the flat road - no variation in speed at all.
I found the instructions on rave (that Zippythewonderkid referred to below) to be so simple, even I could follow them.
Cheers,
Alan.

PS Maybe I should have checked Rave a bit closer before posting this thread, but there's so much info in there!

This was very useful post as I adjusted mine on the weekend and made a hell of a difference - all good !! The cruise actually works now without the surging !

Cheers
Pete

About to go and have a stab myself, same issues with the cruise, tend to find mine will be set then tail off, like it isn't holding. See if this works but from memory, I think both my throttle and cruise cables are quite slack.
Cheers