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Hey Bruce, thanks for taking the time to explaining that to me. So the long story of it is this:
I had the cluster worked on about 6 weeks ago because despite a new gear the odometer still wasn't working (turned out to be a couple of solder joints). The same weekend I did the blower motor/heater core/thermo trying to limit the amount of time I was without a vehicle. When I put it all back together and put the cluster back in everything seemed great. Then when I finally hopped on the freeway four days later (it's a small town so I don't use I-5 much) I noticed the cruise wasn't working. Thinking that I had just kinked a vacuum hose or simply forgot to put one back on I left it for the following weekend. When I did get around to checking it I went through everything bentley had to offer--fuses, brake lights, adjusting the clutch and brake pedals. No dice. So I then I went about checking all the switches and vacuum pump. No dice. I convinced a shop in Portland to fax me a copy of their cruise control diagnostic checklist and went through that. By removing the cruise control unit and jumping various terminals on the female end of the CCU I ruled out that the vacuum system was good (i had accidentally put "bad" in the original unedited post), as were the switches, stalk switch, etc. According to the checklist I was sent it was down to two things, the CCU, or the Speedo signal that tells the unit that the car is traveling faster than 25mph. Weather was kind enough to send me a working CCU, and that hasn't had any effect. So it would appear that something that was done during that first instrument repair caused the cruise to go out as it worked perfectly before any of the work was done.
Obviously though I'm still open to suggestions. The only other thing that I've tried that may be worth mentioning is that I've removed the carpet again and sanded the grounds at the base of the dash/center console. Any suggestions would help, and I'll be sure to post back when I have the instrument cluster.
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