Will a 2003 Dodge Neon motor go into a 2000 Neon
swapped a 2003 motor into a 2000 Neon and can't get it started what do I have to do

The Dodge Neon got a redesign in 2000 to address some of the road noise and mechanical problems that were driving customers to foreign subcompacts. But this redesign meant the 2000 Dodge Neon lost some of its sportiness that made it so fun to drive.
The coupes are gone, as is the R/T, and only a Highline and ES sedan remain. The 2000 Neon was given a longer wheelbase, increasing the interior room and trunk space of the already roomy subcompact. Body-wise, the longer wheelbase and redesigned suspension and steering, along with stronger sway bars, increased stability and handling. The twin-cam 150-hp engine was axed, so the 2000 Neon only came with the single-cam, 2.0-liter, 132-hp either in a five-speed manual or the sluggish 3-speed automatic. Traction control was finally an option.
Outside, the Neon lost some of its distinct design and moved closer to the homogeneity of all subcompacts. It still retained its oval headlights, but lost some of its curves. The windshield was angled forward, like the Intrepids, and ground clearance was raised in the front. The frameless windows, which let in so much road noise and burglars, were replaced with framed doors. More interior features were offered as options, but the base model Highline still came with very few standard conveniences.
Despite all of Chrysler's efforts, the same complaints still plague the 2000 Neon. Owners are unhappy with annoying road noise and a terrible repair record (still with the head gasket!). The high rear deck still impedes visibility and there is significant brake squeal. On the positive side, drivers love the roominess, particularly the headroom, and the large trunk. They say the 2001 Neon is fast off the line, handles smoothly, and is stylish to boot.
swapped a 2003 motor into a 2000 Neon and can't get it started what do I have to do
My dad drove this car for about 4 years, it has 200k miles on it. It started consuming water and overheating at one point so my dad parked it, expecting it would be a head gasket job. Eventually I got around to working on it myself, i’ve replaced the head gasket, water pump, thermostat, and radiator cap and it’s still overheating. I have noticed it seems to only overheat when the AC is turned on, but it also consumes water so eventually it overheats no matter what. There are no visible water leaks, radiator and condenser fins seem okay, really scratching our heads with this one.
I have a 2000 neon it died suddenly and the check engine light came on and now it cranks but it won't start there is spark also
Going 65 all the sudden heard a pop check engine light came on I panicked turn the car off go to the side now the car won't start turns over fuel pump working Airways unclogged and Sparks in all four cylinders any idea?
Will parts off of a 2005 dodge neon work on a 200 dodge neon
Airbags
Dual front airbags
Audio System
Single disc in-Dash CD · AM/FM radio
Brakes
ABS: 4-wheel
Convenience Features
Multi-function remote: keyless entry · Steering wheel: tilt-only
Mirrors
Exterior mirrors: power
Roof
Moonroof: power
Seats
Front seat type: bucket · Upholstery: cloth
Tires and Rims
Wheels: alloy
Windows
Front wipers: intermittent
Airbags
Dual front airbags
Audio System
Single disc in-Dash CD · AM/FM radio
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Multi-function remote: trunk release · Steering wheel: tilt-adjustable
Mirrors
Exterior mirrors: heated
Seats
Front seat type: bucket · Upholstery: cloth
Tires and Rims
Wheels: alloy
Windows
Front wipers: intermittent