Question about 2002 Dodge Neon

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02 neon running rough

I have a 02 neon rt (5 speed) it's running rough on the lower end like 1st and 2nd when starting off. I changed the spark plugs but seems to be still not quite right. Does anyone have any ideas?

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  • KennethCn May 11, 2010

    Does it idle rough? If so I'd recommend changing the wires as well. As for 1st and 2nd, I'm not too familiar with transmissions, but have you checked your transmission fluid levels? If so you may want to take it to a transmission shop and see if they'll run the diagnostic on it. Otherwise, not sure what more to tell you sorry.

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Your coil my be going out not enough spark getting to it. take your coil off and get in checked at an auto part store or dealer.

Posted on Jul 29, 2008

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Car momentarally shutters at all speeds and gears more and more frequently after it is warmed up. You can feel it slightly at idle.


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Oct 29, 2015 | 1995 Dodge Neon

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General Motors gear ratios hide] 1 GM Rear Wheel Drive...


General Motors gear ratios
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GM Rear Wheel Drive Transmissions

PTU = Power Transfer Unit (Crossover SUV AWD/4WD)

6 Speed Automatic Transmissions

RPO Trans Name 1st 2nd 3rd
MNK Allison 1000
MNZ Allison 1000
MW7 Allison 1000
MYB
MYC

5 Speed Automatic Transmissions

RPO Trans Name 1st 2nd 3rd
M74 Allison 1000
M22 5L50-E
M82 5L40-E
MTW Allison 2400
MX4 Allison 2000
MX5 5L40-E with PTU*
MV3 5L50-E with PTU*

4 Speed Automatic Transmissions

RPO Trans Name 1st 2nd 3rd
M30 4L60-E
M32 4L60-E HD
M32 4L65-E
M33 4L60-E Hybrid
M41 4L30-E
M70 4L70-E Super Duty
M99 2ML70 2-mode Hybrid*
MD8
ML4 4L30-E
MN8 4L80-E HD
MN8 4L85-E
MT1 4L80-E
MW9 HM 200-4R
  • EVT Mode 1 The 2ML70 can operate in electric mode or non-electric mode in first gear with a gear ratio of infinity to 1.70:1.
  • EVT Mode 2 The 2ML70 operates in non-electric mode with a gear ratio of 1.70 - 0.738:1

3 Speed Automatic Transmissions

RPO Trans Name 1st 2nd 3rd
M40
M41
M65
MD2
MD3 HM-180
HM-200C
HM-350
HM-400

GM Front Wheel Drive Transaxles

6 Speed Automatic Transaxles

RPO Trans Name 1st 2nd 3rd
MH2
MH4
MH6 6T75 (AWD)
MH7
MH8
MY9 6T75 (AWD)

5 Speed Automatic Transaxles

RPO Trans Name 1st 2nd 3rd
Aisin-AW 55-51LE
M09 Aisin-AW AF33-5
M43 Aisin-AW AF23-5
M45 Aisin-AW AF33-5
M98 AF33-5
MJ7 Honda 5AT
MJ8 Honda 5AT w/PTU*
MLS Aisin 50-40E
MU3 Saab 76.5mm

4 Speed Automatic Transaxles

RPO Trans Name 1st 2nd 3rd
MLQ Aisin 81-40LE
Aisin ZF 4HP 16
HM 325-4L
Jatco JF405-E
M10 Jatco JF403-E
M13 4T60-E HD
M13 4T60-E
M15 4T65E
M45 Aisin-AW AF33
M57 A245-E
M76 4T65E with PTU*
MD7 4T65E
ME7 4T45-E BAS Hybrid
ME8
ME9
MH1 4T80-E
MN3 4T65E
MN4 4T40/45-E
MN5 4T45-E
MN7 4T65E HD
MS7 A240-E
MU4 A246-E
MU5 U341-F

3 Speed Automatic Transaxles

RPO Trans Name 1st 2nd 3rd
M60 GEO Metro
MB3 A131L
MD9
MX1 A131L
GEO Storm
HM-425

GM Manual Transmissions

6 Speed Manual Transmissions

RPO Trans Name 1st 2nd 3rd
M10 Tremec 85mm
M12 Tremec T56
ML6 ZF S6-650
ML9 ZF S6-40
MM6 Tremec T56
MV1 Aisin 85mm
MV5 Aisin D173 AY6
MV6 Aisin 85mm
MZ6 Tremec 85mm

5 Speed Manual Transmissions

RPO Trans Name 1st 2nd 3rd
M35 Getrag 260
M35 Getrag 260 (2003-2004 Cadillac CTS)
M49 BW 5spd
M50
M59 GEO Tracker
M86 Getrag F23 75mm
M94 Getrag F23
M96 Tremec 109mm
MA5 Aisin AR5 82mm
MG3 Getrag F23
MG5
M50
M51
MH3 Tremec T-5
MK5 C59
ML2 Tremec T-5
ML3 Tremec T-5
MT8
MU3 Saab F25
MW2
MW3 NV4500 109mm
TR-3450
TR-4050
TR-4050
2007 Chevrolet Optra and Spark (Trans code Y4A)
2007 Chevrolet Optra and Spark (Trans code Y4M)

4 Speed Manual Transmissions

RPO Trans Name 1st 2nd 3rd
M20 HM-117
M73 Isuzu
MC0 Getrag
MC9
MY6 NP260

More GM Manual Transmissions

6 Speed Manual Transaxles

RPO Trans Name 1st 2nd 3rd
MT2 Opel F40 83mm
MU9 Opel F40 83mm
MTN Toyota C60

5 Speed Manual Transaxles

RPO Trans Name 1st 2nd 3rd
D-16 (2005-2008 Chevrolet Aveo 1.4 DOHC / 1.5L)
D-16 (2005-2008 Chevrolet Aveo 1.4 SOHC)
Y4A (2007 Pontiac Matiz)
YM4 (2005-2007 Chevrolet Aveo)
D-20 (2005-2007 Chevrolet Epica)
L73 Pontiac LeMans F16
M42 Geo Metro
M43 AF23
M49 BW 5spd
M58 Geo Metro
M79 LeMans F13
M86 Getrag F23 (5T45MI)
M94 Getrag F23
M98 Aisin 55-51E
MB4 Geo Prizm 1.8L
MB5 Geo Prizm
MFB 2008 Chevrolet Epica 5-Speed S/R (D24)
MFN 2008 Chevrolet Epica 5-Speed S/R (D33)
MG1 HM-282
MG2 HM-282
MG3 Getrag F23
MJ1 Isuzu
MK7 Isuzu
MLM Y4M (2008 Chevrolet Aveo 1.6 DOHC)
MR3 Isuzu
MU3 Saab F25
MV2 Chevrolet Sprint
MY7 Early J-car

GM Continuously Variable Transaxles

RPO Trans Name Lowest Highest
M83 V20-E
M75 V25-E
M16 V25-E AWD

on Apr 15, 2015 | GMC Cars & Trucks

1 Answer

Codes PO300-PO305 TCS and emission lights on, runs OK except sl rough at lower speeds


you have multiple misfire po300 and cylinder 5 po305 misfire.the misfire is causing the rough running.The computer has disabled your traction control.You either have carbon in the EGR which simulates a vacuum leak,bad spark plugs,a leaking intake manifold,or low fuel pressure from a bad pump or clogged filter.
i would start with the spark plugs and fuel filter

Apr 21, 2015 | 2001 Honda Odyssey

1 Answer

95 Dodge Neon


common problem for dodge 4 cylinders...
never lower the oil level unless its real high on the dipstick..
you have the replace the spark plug guide seal.... it seals it from oil in the valve cover going into the spark plug guide and killing the spark... yes oil goes past the threads on the plug....

just did the valve cover on my 94 jaguar... has the same setup valve cover design

Jun 09, 2013 | 1995 Dodge Neon

1 Answer

I just purchased an 2003 neon se its idling rough and in gear at a stop. As well as sometimes it hesitates and no acceleration. we've changes the motor mount, new spark plugs and wires, 02 censors and have...


I would recommend a compression test on all cylinders, compression should be near 150 psi. What you want to look for is one or more cylinders with compression that is slightly lower than the rest. I have seen literally dozens of these vehicles with burnt valves causing misfire codes to set. If no problem is found with the compression test, test the spark output from the coil.

Feb 05, 2011 | 2003 Dodge Neon

2 Answers

Running real rough and uneven at idle and slower speeds


Seems like this car have the same symptom wherever it is, I have this trouble as well, I did the tune up, injection cleaning, change spark plugs and spark plugs wires, change the air filter, change the engine mounting but still the same trouble :(

May 03, 2010 | 1989 Toyota Camry

1 Answer

Rough accleration through 2nd gear


Had a loose Distributor cap and spark plug. Changed out the plug wires anyway and truck runs great.

Jun 24, 2009 | 1989 GMC Sierra

2 Answers

Cant remove headlamp to replace bulbs on neon RT 02


sometimes they need to have to have a little persuasion to get them out. Try prying on them gently with a screw driver. Make sure you do have all the screws out first.

Jun 23, 2009 | 2003 Dodge Neon

1 Answer

Idle flucutation rough take off in 1st and 2nd gear


The spark plug leads in these cars are notoriously bad. I would change them without hesitation just for maintenance if nothing else, but I bet it solves your problem.

Mar 16, 2009 | 1990 Mazda MX-5

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