2004 Dodge Neon Engine Problems
- Complaints
- 6about this part
- Share
- 6%of 94 total for the year
- Median mileage
- 150,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the engine of the 2004 Dodge Neon, 6% of the 94 complaints for this model year. Where a mileage was given, the median is 150,000 miles. 1 of these say a crash was involved and 1 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Vehicle respond to a light acceleration request with sustain full throttle operation. The vehicle traveled in poor road conditions with full throttle operation. The only influence in course change was terrain and torque steering. After collision with a stone pillar code p0123 throttle high voltage was found.”
NHTSA complaint #10870169, filed 2016-05, 150,000 miles“Transmission cooler in radiator leaked, causing transmission fluid to contaminate engine, and also contaminated transmission with radiator fluid. Called chrysler corp and they said no recall on it and did not offer to help with it. When I google searched this problem there seems to be multiple instances of this happening.”
NHTSA complaint #10556627, filed 2013-12, 54,000 miles“The contact owns a 2004 Dodge NEON. The contact stated that while traveling 20 MPH, the vehicle stalled. The vehicle was diagnosed by a private mechanic who stated that the engine needed to be replaced. The vehicle was repaired. The failure mileage was 160,000 and the current mileage was 167,000. The VIN was not available.”
NHTSA complaint #10588031, filed 2014-05, 160,000 miles“The contact owns a 2004 Dodge NEON. The contact was making repairs to the vehicle when he noticed that the area where the air intake tube was connected to the idle air control unit, the vehicle could possibly cause unintended acceleration if the clamp was not installed properly. The contact stated that if the accelerator pedal was depressed, the rpms would increase excessively and the vehicle would take accelerate rapidly. The failure mileage was 179,000. The VIN was not available. …”
NHTSA complaint #10461369, filed 2012-06, 179,000 miles“The contact owns a 2004 Dodge NEON. While driving 20 MPH, the engine revved and inadvertently shifted to a lower gear. Also, the service engine warning indicator illuminated. The contact was able to drive the vehicle home but, prior to the failure, was having transmission issues for over a year. The contact mentioned that a plastic piece that separated the coolant and transmission fluid fractured and allowed coolant to enter the transmission. The vehicle was not taken to an independent mechanic or dealer for diagnostic testing and repairs; however, the radiator was replaced. …”
NHTSA complaint #11044792, filed 2017-11, 139,000 milesEngine: other model years
Other parts of the 2004 Dodge Neon
23 complaintsEngine cooling
20 complaintsElectrical system
15 complaintsAir bags
14 complaintsBrakes
9 complaintsExterior lighting
8 complaintsSuspension
8 complaintsVehicle speed control
7 complaintsBody and structure
6 complaintsSeat belts
5 complaintsSteering
4 complaintsEquipment
2 complaints
← All problems reported for the 2004 Dodge Neon
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology