My Rodeo starts fine when cold. When it warms up and sitting in Park, the idle will surge and then drop dramatically to where it sometimes will die. When I try to restart, it cranks a long time before it will restart. When in drive and sitting at a stop light, it will also surge. The truck has good performance going down the road. Ocasionally a puff of white exhaust will come out. The truck only has 13,000 miles and sits in the garage a majority of the time.