SOHC and DOHC engines are different. Please ask question again specifying engine.
it is either on the side of the head or on the thermostat housing
The thermostat on a 1995 Plymouth Neon is right behind the Radiator Cap.
the spark plug gap for a 2000 dodge/plymouth neon is 0.035 the spark plug gap for a 2000 dodge/plymouth neon is 0.035
Water pump not pumping or a pluged radiater
one
5w30
No, the years have to match.
There is no difference besides the badge on the car. I had a 2001 Plymouth neon and now have a 2002 dodge neon and the only difference between the 2 is the badges and the grill. and the grill changed with the 2002 model.
Plymouth does not use inertia/reset switches
4.5 quarts
It is in the fuel tank.
The horn on a 2000 Plymouth Neon is located at the front of the engine compartment near the headlights. It is trigger through a press of the steering wheel like most other vehicles.