I did change the spark plugs 3000 miles ago.
Used Autolite Double Platinum pt# APP 606
IS the 3400 V6 Alero that susceptable to problems with double Platinum tipped spark plugs, in regards to waste spark?
Or is Heat the heat range of these type plugs that much of a difference to cause my cold start rough run.
More I analise this problem its starting to hit me that as the plugs warm up,
(yes after 3 minutes of run time) the missfire completely goes away.
Heat range issue related to change of sp type.
That on a warm engine, and restart, there is NO rough run.
Key here is after about 3 to 4 minutes of run time, the missfire stops completely and NO rough run.
I'm going to inspect plugs tomorrow morning and reinstall the ac delcos, that are like $6.99/plug
and see what happens