Johnathan,

The Thermo switch is definetaly suspect.

The TEMPII sensor is high on my list of cold idle culprits.

Likewise the idle position sensor .

Bentley has a good test procedures for all three.

Good Luck,
Ken

On Wed, November 2, 2011 11:37 am, Jonathan Edwards wrote:
> I tried to start up my '85 weekender this morning (19 degrees F in
> Bozeman) and she turned over fine and ran for a bit, then kind of
> bogged down and died. I repeated a few times with my foot on the gas,
> trying to keep the RPMs high but the same thing happened. I've noticed
> on other cold mornings (not this cold) that the van will start fine,
> but I have to keep my foot on the gas petal slightly to keep RPMs up
> or it will die, until it gets warmed up. Ideally, I'd like to be able
> to go out, start it up and let it run unattended for 10 minutes to
> warm up (while I go back inside). There is some kind of a cold-start
> valve that controls idle RPMs when the engine is cold, right? Sounds
> like this needs to be looked at? But that doesn't explain why the
> motor dies when I am physically there with my foot on the gas.
> There's also the "thermo time switch" - maybe that has something to do
> with my problem? I've got a Bentley, but have yet to have time to
> really get into it and understand how to use it. Any help would be
> greatly appreciated!
>
> Thanks
>
> Jon
>
>