paul

Any ideas gratefully received on the following:

- cruise control has stopped working completely
- vacuum on diaphragm on the engine holds fine
- no obvious cracks or problems with the hoses
- light comes on when switch is depressed on the dashboard

can anyone think of what to look at next?

Lee_D

"paul" <syrysko@yahoo.com> wrote in message
news:1115296120.965711.149730@f14g2000cwb.googlegroups.com...
> Any ideas gratefully received on the following:
>
> - cruise control has stopped working completely
> - vacuum on diaphragm on the engine holds fine
> - no obvious cracks or problems with the hoses
> - light comes on when switch is depressed on the dashboard
>
> can anyone think of what to look at next?

Brake light bulbs were suggested when I had problems.

Lee D

Tim Hobbs

On Fri, 6 May 2005 00:21:13 +0100, "Lee_D"
<newsgroupNOSPAM@NOSPAMlrproject.com> wrote:

>"paul" <syrysko@yahoo.com> wrote in message
>news:1115296120.965711.149730@f14g2000cwb.googlegroups.com...
>> Any ideas gratefully received on the following:
>>
>> - cruise control has stopped working completely
>> - vacuum on diaphragm on the engine holds fine
>> - no obvious cracks or problems with the hoses
>> - light comes on when switch is depressed on the dashboard
>>
>> can anyone think of what to look at next?
>
>Brake light bulbs were suggested when I had problems.
>
>Lee D
>

Or the switches under the brake and clutch pedals that kill the
cruise.
--

Tim Hobbs

'58 Series 2 88" aka "Stig"
'77 101FC Ambulance aka "Burrt"
'03 Volvo V70

paul

Thanks guys. My brake lights are ok; I just checked the switch under
the brake pedal (have an auto box) and it's fine - delivers 12V from
the fascia switch. Wondering now how to check the whole of the vacuum
line whilst stationary and how the switching from the steering wheel
connects up. Any suggestions?

Thanks in advance

Paul

paul

OK, I think I've found the problem. A 9 pin female multiplug with 6
active pins is dangling disconnected. It's under the steering wheel and
I can't see what it plugs into.

Looking at the main circuit diagrams for 1990 model year RR, it seems
certain that it's for the cruise control. The available cable doesn't
seem long enough to get behind the instrument binnacle; though the
wires have been previously bound up so it might reach.

Does it plug in there somewhere, picking up info from the speedo etc?

Thanks

Paul 1990 US Spec RR V8 EFI LPG