Greetings Gents,

First, I had the emppowering experience of locking the keys in the 79 SD while she was running. I spent about 30 hours acting as if a diesel was not burbling along in the driveway and clouding the neighborhood with noxious crap.

Second, I can't get the heat to shut off. I turn on the A/C and dial down the temp., but no go. I searched the archives for Monovalve, but am not certain of it's exact function.

Any suggestions. Many thanks.