Thread: Cruise Control ain't working

If it lights up and nothing happens check the vac lines behind the pump. If it doesn't light up start in the fuse boxes. Mine had a crack in the vac line between pump and actuator. Can't get tubes anymore just replace with vac hose.

I know that you've gotta be doing over 40kms/ before the cruise will engage but if you're on the freeway you should be well and truly over that.
My cruise doesn't work properly either, I set mine and then it just gradually loses speed till I get sick of it and put me boot back on the "go" pedal.
Don't quote me on this but I think the cruise works on a vacuum to hold the throttle caple in the desired position and with mine it's like the vac isn't strong enough to hold it?
I'll be watching this one closely to see what others have to say.
Cheers
Mat

Originally Posted by Discobaker

I know that you've gotta be doing over 40kms/ before the cruise will engage but if you're on the freeway you should be well and truly over that.
My cruise doesn't work properly either, I set mine and then it just gradually loses speed till I get sick of it and put me boot back on the "go" pedal.
Don't quote me on this but I think the cruise works on a vacuum to hold the throttle caple in the desired position and with mine it's like the vac isn't strong enough to hold it?
I'll be watching this one closely to see what others have to say.
Cheers
Mat

Maybe there is a clue in the post above yours!

Originally Posted by Shaker

Maybe there is a clue in the post above yours!

Didn't even see it, I must have been typing my post when it went up lol

The vacuum hose is easy enough to check for leaks. Disconnect it from the pump & suck to see if the diaphragm draws the cable in. Hold the vacuum for a minute or so. If the cable stays put & doesn't slowly draw back, the hose has to be ok.

After confirming the cable tension & vacuum hose is ok, I'd be checking the vacuum pump itself. I swapped mine with a second hand unit & all was good again. I don't know if the old pump can be serviced or not.

Have a good look around for a 2nd hand vacuum pump if you need to replace it.

I was quoted $500ish for a new one, so found a 2nd hand one from the US on Ebay for $85 including postage.

Originally Posted by Automorph

Hello,
I have recently bought a bargin hail damaged Disco 2, pressed the cruize button on the dash and tried to activate it whilst on the freeway. And damn it nothing happening at all. Has anyone got any suggestions to what is going wrong ?

TD5 Diesel or V8 Petrol????
You switch the binnicle switch on,it has lane markings on it.A LED should illuminate.You then hit set on the steering wheel.You can adjust the speed up/down with the set button.Resume switches it in out.
TD5s dont have vaccum operation,its all done via the ECU.
If it is a TD5 I can hook my Nannocom up to see what the issue is.Look in the electronic diagnostics area for a list of owners with Nanocoms etc that can help,you may find one a bit closer.Busselton to Williams isnt too bad a drive.
Nannocom is a TD5 only diagnostic tool.
Andrew

Does the horn work?? The same fuse operates both.

JC