Rough idle @ startup for a few seconds
 

So maybe I'm just paranoid; but what to see what you guys think. Hope it's just a 1 time event.

So it's been bitterly cold lately, I did a full cardboard block behind the grill. It warmed up recently, drove to car wash, pressure washed everything, got the cardboard damp. Drove home (5-6mi) parked & removed 1/2 the cardboard as it's supposed to get back up in the 70's this week.
A few hours later we go out, start up and the car shakes at start up, rough idle. No indicator lights. Stops after 20-30 seconds, if that long, and hasn't come back [yet].

Can't think of anything else revelent at the moment. Last gas fill up was several days eariler, same station as always.

Bryan

Re: Rough idle @ startup for a few seconds
 

Any chance you got some water in the air box/intake while using the pressure washer?

Re: Rough idle @ startup for a few seconds
 

Not directly. Hood was closed the whole time. Unless it entered some other way. It would have to been delayed because I started it up to pull out of the wash bay to the vac's, then again to drive home. Both of those starts were fine.

Re: Rough idle @ startup for a few seconds
 

I think you got some in the distributor cap. ;)

Re: Rough idle @ startup for a few seconds
 

Pretty slick trick with a fuel injected engine, too!

Re: Rough idle @ startup for a few seconds
 

Distributor cap doesn't have anything to do with fuel inj. That
said there isn't a cap on most cars that I know of. They have individual coil
packs that sit directly on the plugs.
The miss could be associated with water getting in there but I would be
real difficult.
I guess when our cars run good we have to find something to fret
about,

Re: Rough idle @ startup for a few seconds
 

Guess you don't recognize a joke, when you see it. ;)

Re: Rough idle @ startup for a few seconds
 

Sorry, I meant electronic ignition. I didn't have my thinking cap on...