Yea, the vacuum pump is bad and also needs replaced, and I forgot to mention a weird AC problem. While driving it around some yesterday, on a couple of occasions the AC air was warm, vent air. A couple of minutes and then it changed back to nice, cold air...maybe a climate control issue? Low gas?

The cruise control is a big deal for me and I'm trying to figure out how to fix that. The symptoms are pretty classic amp stuff, but I've read several posts about the brake lights. Also, these amps have the coding plug, which many online manufacturers claim also has to be changed, although my local guy says they hardly ever go bad. And, a real big discrepancy - online - in the prices of these cruise amps...so a little confusing.

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RG Newell

1984 300D
1972 250
1986 560SL
1991 300CE