The 67 has an automatic climate control system...a maze of vacuum lines, sensors, valves, and electrical switches. Many years ago it all worked as designed. Set the temperature and the system was smart enough to give me heat or air to maintain the temp. But over time it got finicky and only worked if i set it on defrost to make the fan go on, and then moved it to auto to regulate the heat.
Last weekend that trick didnt work and i couldnt turn the heat on at all. I first checked the fuses and found all to be ok so i set out to check the vacuum system. I lit a fat cigar and started blowing smoke in various lines until i found that smoke was pouring out everywhere on the vacuum valve that controls most of this mess. I took it apart and cleaned up and lubed the little rotary valve in there.
That sealed it up and now the heat is regulating again as it should. :-)
1 comment:
I like how you've turned cigars and blowing smoke into a prominent and effective automotive analysis technique!
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