The heater Core is most likely out... that's what happened to My 98... I'm working on it right now trying to fix the engine... sell it... do not keep that car...
Could be a bad coil, plug, or injector. Start with the coil first.
drive cycle for 1998 pontiac grand prix, 3.8 engine, no super charge?
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.
At the front of the engine , towards the drivers side of the engine ( power steering fluid reservoir on a 1998 Mercury Grand Marquis )
yes
Pop your hood, it should be Indicated on top of the engine.
5 qts
The oil capacity for a 1998 Plymouth Grand Voyager is 4.0quarts (this applies to all engine sizes - 2.4L, 3.0L, 3.3L)
It is inside the engine, driven by the timing belt.
It is on the front of the engine,
5 quarts
The 1998 Mercury Grand marquis has the 4.6 liter / 281 cubic inch Single Over Head Cam ( SOHC ) engine from the factory