By lcubed on Monday, October 29, 2001 - 07:57 pm: Edit

my cruise control in my 96 disco has failed again.

anyone know what the cruise control gizmo that's situated by the front
driver's side headlight is called?? and even, better, what it's part number is??

i'm guessing that that part has ingested mud/water and failed.

By Kevin Novakowski (Kln) on Tuesday, October 30, 2001 - 10:00 am: Edit

Are you sure its the electronics and not related to the switch on your brake pedal?

By Jon Williams (Jonw) on Tuesday, October 30, 2001 - 11:50 am: Edit

Gizmo situated near the driver's side headlight? The airbag impact sensor? The ignition coil? I thought the cruise control module was under the dash...

By Rob on Tuesday, October 30, 2001 - 11:56 am: Edit

Have you checked the bulb located in the center of the engine near the wind screen?

By Discosaurus (Discosaurus) on Tuesday, October 30, 2001 - 12:17 pm: Edit

My 'gizmo' under the headlight (the electronics module) actually did die like that, once. Water ingestion.

However, more then likely, you simply have another cracked vacuum hose. Check the ones down by the gas pedal...

keith
discosaurus

By just me on Tuesday, October 30, 2001 - 12:19 pm: Edit

it's a vacuum pump, anyone know what the rover part number is??

By Gabriel Guay (Gearhead) on Tuesday, October 30, 2001 - 10:43 pm: Edit

My 99 D1 has intermittent Cruse Control instead of intermittent wipers. I checked the vac lines and the vac pump. Found no problems. The funny thing is, when it fails, I pull over, shut of the ignition, Restart the truck and start driving again and the cruse works again. Only happens once every 40 or 50 times I use the cruse. Is the cruse controlled by computer in some way that may not initialize or something? BTW, I haven’t been able to get the cruse to not work when at the dealer for service. They keep telling me I must be stupid and not know enough to tell if the main cruse switch is on or not.

By Craig on Tuesday, October 30, 2001 - 10:50 pm: Edit

part number for the vacuum pump is
PRC6260
Craig
LRDE

By Brian Thaxton on Thursday, November 01, 2001 - 03:33 pm: Edit

I am having the exact same problem right now. However, mine is slightly more intermittent--it might or might not work at any given time. Of course, it always works great at the Dealer. I have ordered the brake/cruise vacuum SWITCH. It is just behind the black drivers' underdash panel, and it is the object that the cruise vacuum hoses attach to after they pass through the firewall. Specifically, it is located just under the steering column under the dash. The part costs about US$20 and it is a great place to start. BTW, the object in the engine compartment next to the driver's side headlamp is the cruise vacuum pump, and it costs about US$415 at the dealer. I have not checked vendor sites. According to the dealer, there is no way to test a vaccum pump with a hand tester because it will always hold a vaccum whether functioning or not. As I understand, about the only way to diagnose a cruise problem is to begin replacing parts until the problem goes away. The cruise vaccum switch is cheap, so it will get replaced first.

By Gabriel Guay (Gearhead) on Thursday, November 01, 2001 - 11:44 pm: Edit

Brian, Glad to see I’m not alone on this one. I have to say, Land Rover service has been by far way better than the Ford or GM experience but, on this cruse control thing, they don’t seem to have a handle on things. I just replaced my vac switch this week and so far two days went by before the cruse failed. Again, I shut off the truck and restart-it and all is well again. Let me know what you find. I think it is dirt under the contact ring in the steering wheel. I had a similar problem on my 78 F-150. Took the wheel off and found the contact ring was encrusted with dust/lint that was stuck to the white grease on the contact ring. Cleaned the ring and the problem went away. This truck has an air bag in the wheel so; I won’t be trying that trick on this truck. If I don’t find anything soon, I may pay Land Rover to disassemble the wheel and check it out though.

More to follow if I find another solution.

Gabe.

By Bill Leek on Friday, November 02, 2001 - 08:19 am: Edit

Occasionally, my cruise control stops working. In all cases, it has simply been a cracked vacuum hose. I had been trimming off the cracked end and reseating the hose, but recently replaced the hose with new material. Works fine now. You might check the vacuum hose in your vehicle.

By Kingfish (Kingfish) on Friday, November 02, 2001 - 08:38 am: Edit

Check the diaphram for cracks or leaks. Compress it, put your finger over the hose inlet, and see if it stays compressed. It should. Also, a good idea is to replace all thos rubber hoses. Sometimes a small crack is not very visible.

By doug james on Friday, November 02, 2001 - 03:46 pm: Edit

OK AND EASY to remove your airbag if you want to replace the CC cassette. My CC also on the fritz-(RRC-lwb, same wheel and dash config as D1, incidentally) NOTE:++++ Disconnect battery ++++
Reason: the a/b ECU looks for circuit interuption, prompting the SRS lamp. It can ONLY be reset by dealer. IF you disconnect battery, the interupt DOESN'T 'register'.
There are 2 star-bolts at the 9 and 3 position on the strg whl-backside. After six-point allen, the a/b just sits there. Withdraw. Pull the red plug from the assembly. The strg whl can be removed by loosing' the big nut. The positioning should be noted with wite-out, so it realigns squarely. The cassette is the round black assbly. Reassebly is the...
Been there, done this. EASY- best, Doug 95lwb

By Gabriel Guay (Gearhead) on Saturday, November 10, 2001 - 09:29 pm: Edit

Ok, I have done all the things that would seem to fix the cruse control. Replaced vacuum hoses, Vac switch under dash, checked adjustment of switch, replaced master switch, bench tested vac pump & still have an intermittent cruse problem. Restart the truck, and all is fine for a while. I don't get it.

Does anyone have any opinions here?

I refuse to take it back to the dealer since I’m sure the cruse will work fine at that time as it always does.