Three problems related to engine exhaust system have been reported for the 1999 Dodge Caravan. The most recently reported issues are listed below.
Engine developed a massive high pressure oil leak causing near flame conditions, loss of oil and possible engine damage. Vehicle was diagnosed at independent repair facility. The difficulty is defective cylinder head/ cylinder head gasket failure spraying a mist of hot oil onto the hot catalytic converter and remaining exhaust system. Vaporized oil subjected to these conditions can explode violently. The vehicle has been placed out of service. The cost of repairs (new engine) exceeds the value of the vehicle. Research proved Chrysler corporation has known of this problem since prior to 1994 and has attempted to patch the problem rather than repair it correctly in thousands of cases to date. My contentions is the Chrysler corporation knowing sold me an unsafe defective vehicle to me and many others.
Excess exhaust smoking when engine is idling. Have been told by mechanic that lifters and valve seals need to be replaced. Mechanic has repaired several Dodge/Chrysler/Plymouth vans with same problem.
While driving, smoke entered the cabin which was caused by the head gasket blowing out and leaking oil onto the exhaust pipe and catalytic converter. The mechanic replaced the head gasket. The manufacturer redesigned an upgraded the head gasket. The van had 4 cylinders, and 2. 4 liter engine. The fumes and smoke made the consumer and his wife sick. (sinus and coughing which existed two weeks after).