Complex Problem,5 second deceleration

[elks]

Do you ever notice if the tach drops to 0 or anything wierd when this happens?

The only 2 things that come to mind is a flaky ICM, or a Crank Position Sensor going. When I had a cracked coil it was messing with my ICM and eventually fried it. Check the sides of the coil packs for cracks. Mine was hard to see until I looked closely with a bright light. This is of course after it came home on the hook for a failed ICM.

It runs great except for the sudden, quick decel, then accel, will check coil packs for sure, looking for anything now except the shops big bucks,lol thanks, i,ve spent almost 2000.00 for tranny, tune up, brakes, rack and pinion, intake manifold gaskets and various parts trying to fix this, just trying to avoid car payments

[elks]

dang i forgot, tach say its 2.5 it'll drop to 2 it happens so fast it comes right back up, hard to diagnose until it does it and stops, but hasn;t yet, just very quickly decel, then accel right back