Well, my 92 V8 doses the same thing, pnly sometimes it wont start at all.
Usually , it happens afetr it has been run awhile nd then shut off. If I
come back soon and try to restart (like after getting gas, for instance)
it'll do this. SOmetimes it starts and clears up, sometimes it wont start
at all. I have to wait 10 minutes or so and then it fires right up.
I had no fuel pressure the one time it did it in my driveway.
But it sounds exactly like your problem except for the 45 minute part.
At 11:26 PM 2/27/98 -0600, you wrote:
When it happens the idle will get VERY rough and labored, I guess
>a way to describe it would be that is sounds almost like it has a full
>race cam. It will make a loud sucking sound in the throttle body (I
>believe this is the AIS motor opening all the way up to keep the engine
>from dying, but not sure) After 20 - 45 seconds it will clear up like
>someone turned a switch off and idle perfectly normal. Now if you try
>to drive it during one of these rough idle episodes it will hesitate,
>surge, and sometimes even backfire (through the throtle body) then after
>that everythings fine.
>
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