Engine backfires through intake on 2000 Dodge Ram Van 3500

Every several weeks my van backfires ( sounds like through the intake) Only does this when starting out warm.

by in Wickenburg, AZ on September 19, 2012
1 answer 2 comments
ANSWER by on September 22, 2012
Mileage, engine,trans. and maint info all helpful to answer your inquiry.Any recent(3Mo.) repairs?
COMMENT by on September 23, 2012
149000 miles.I think it's a 318,Automatic trans.No recent repairs, Has had regular maintenance.It did it about 6 weeks and 4000 miles ago than again recently. It lasts for about 30 seconds than runs fine again. Thanks millions for any help.
COMMENT by on September 26, 2012
Has the check engine light ever come on , or has it been scanned to see if any temporary (pending) codes are stored? maybe have 'live' data scanned to watch for misfires under the conditions described when it occurs.

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