It does not have one.
The 2002 Dodge Grand Caravan air conditioning recharge valve is located on the air conditioning compressor. The recharge valve will be labeled as such.
It is part of the EGR valve.
The 1998 Dodge Grand Caravan 3.8 liter engine EGR valve can be found on the top of the engine. The EGR valve will be near the back of the engine.
Front passenger side of the engine.
On top of the intake cover on the right side.
Right front corner of engine, above alternater.
Solenoid switch valve latched in the low/reverse position.It means that a valve is stuck in the valve body.
Front passenger side corner of the engine.
It might be that your pcv valve is plugged or the egr valve is sticking.