All,

I have a 1998, S70, auto, non-turbo, 170k.

The car has been very much trouble free ever since we bought it in 2016.

Recently, it has developed an issue, and seems to be related to humidity or dampness, where the car when cold will start up with out issue, but then if you drive it just a couple of miles or less, which is about enough time for the engine to go close loop, and then shut it off to run an errand inside a home depot for instance, then come back out, it will not start. This has happened to my son several times and well, its now time to finally find the problem and fix it.

What we've done is this: Removed Idle Air Control valve and cleaned it. I've also remove the distributor cap and rotor and cleaned it, though it is not very old from a mileage stand point.

I was also thinking of removing the throttle body and cleaning it, but I have not done that yet.

Also, the temperature control circuit in the air filter may be dead, but I've disconnected the exhaust exchange into the air filter, so that should not be an issue if in fact the thermostat is in fact toast.

There are 0 codes on the car as well.

Before doing anything else, I'd like to hear from the board and see what you all say.

Thanks in advance,

Matt

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1989 - 245, 1990 - 245, 1991 - 245, and 1993 - 245