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.
5w30 or 10w30
All engines in that caravan are interference except 3.0 liter
The crankshaft position sensor on a 1998 3.0 dodge caravan is located on the top of the bellhousing towards the firewall.
Mine has 263k on it and is still going strong :) 1998 Dodge Caravan SE platinum engine
No, it is possible to replace them in vehicle.