Question about 2003 Dodge Neon

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My 2003 dodge neon se dies on me @ the weirdest times: I'll start it, then as soon as I turn on headlights, it dies. I'll be driving and all of a sudden the rpm shoots up and it dies. And also the onboard diagnostic system does not recognize any problems(won't give me a code)... WTF? Is it just my ecu? Bad ground?

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  • Dodge Master
  • 15,575 Answers

A scanner can communicate with the PCM - engine computer ? Finding a PCM pin out chart an testing power an ground circuit's would be a good step. If you don't know how to test automotive computer circuit's , your best bet mite be to take it to a qualified repair shop.
How to test computer ground circuit Audi
Open Circuit Detection Wiring Diagram 1

Wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model an engine size . Under system click on engine then under subsystem click on fuel controls .Click the search button then the blue link's one at a time . With a voltmeter test the electrical circuit's . Also hook up a scan tool an view sensor data input's to the PCM / ECM .

And also the onboard diagnostic system does not recognize any problems(won't give me a code)... Maybe there isn't any problem for it to recognize .Set a code. Electrical problem , voltage drop test electrical system !
Voltage Drop Testing the Charging System

Also do main battery cables , ground's .

Posted on Dec 17, 2017

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  • Dodge Master
  • 8,980 Answers

Bad connection. Could be ground or hot side. Check all battery cable connections and ground connections. Also check the charge wire from the alternator to the fuse box.

Posted on Dec 17, 2017

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6ya6ya

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Posted on Jan 02, 2017

dustyboner

alex metro

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SOURCE: Diagnostic code P0456 for 2003 Dodge Ram 1500 5.7

P0456 = EVAP Emissions Control System Leak Very Small

Is the gas cap on tight or is the seal damaged? If it needs replacement, get it from the dealer.

Posted on Aug 24, 2008

Anonymous

  • 18 Answers

SOURCE: flashing light on dashboard 98 dodge neon service engine soon light on

11= Timing belt skipped 1 tooth or more from initial learned value, Intermittent loss of either camshaft or crankshaft position sensor, No crank reference signal detected during engine cranking for dodge odb readout. Hope this helps.

Posted on Dec 08, 2008

Anonymous

  • 191 Answers

SOURCE: 1999 dodge neon

I had the same issue and it turned out to be grounding issues. by that I mean ALL of my grounds were rusted/loose/ too small wire/ ect.

To curb this issue i had to locate multiple grounding wires on the engine and that little wire running from the ground terminal to the front cross member was heating up because so much current draw through it- after locating grounding wires, Sanding the connections and using petroleum jelly AND replacing the ground terminal and Positive terminal the issue cleared up.

The only reason i knew it was ground issues on my car was finding that one chassis ground wire heating up from just running my car.

Posted on Mar 17, 2009

michael billington

  • 334 Answers

SOURCE: 2003 Dodge Stratus SXT 2.4L DOHC won't start

sound like it could be fuel. pump or timeing belt. if you put a new fuel filter in be sure to replace the fuel filter

Posted on Aug 21, 2009

amoxtlin

  • 2 Answers

SOURCE: dodge neon sxt 2003 engine vibration while increasing rpm

Well i have s similar sound but im not sure if its the same. For me i just found out that its a bracket i never put back on. The motor mounts if you get them at an autozone which gives you a life time warrenty runs about 30 bucks and theres only 3 upper passenger and lower passenger and one on the drive side which is connected to the transmission. there is some what of a 4th one but that one never really goes bad and its the worst one of them all. Its located in between the 2 on the passenger side you have to move the engine outa the way to get to it and take it out. Im not sure if autozone or any place sells that one but like i said its probably still ok. i have 170000 mile on my neon and the mounts still good and trust me my cars been through alot and i mean alot its flied over cannels anyway yea so thats what i know about the mounts im not sure why the noise though. I say check the motor mounts if any are ripped change the ripped ones all at once trust me. Oh and i didnt the change on the motor mounts myself so it was free there not hard to change the first 3 i mean maybe the transmission one too all you need is a jack underneath it to keep it leveled right.

Posted on May 21, 2010

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2 Answers

I have a 2003 dodge neon sxt. Will start and run fine then drive for awhile shut it off then it just cranks won't start till it has cooled down


The 1st thing that needs to be done here is to have the PCM (powertrain control module) scanned for both active and stored codes as well as a running test.

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Got 2000 dodge neon will start when cold run good but when motor warms up won't start


Nikki is the engine light on, are there any codes,have you had a tune up or any other work done lately.when you say it won't start when warm(do you mean engine will not turn over, or does engine turn and refuses to fire.
If I had to guess failing fuel pump, they tend not to build fuel pressure when ran a while(warmed up) and when left to cool build somewhat better pressure.
press the helpful button

Is Your Fuel Pump Going Bad
How do know if its fuel filter or fuel pump that is causing the problem
How To Diagnose Fuel Pump Failure EricTheCarGuy
http://www.clarks-garage.com/shop-manual/ts-01.htm#hot-start

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1 Answer

Wont shift gears


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Problem with 2003 Dodge Neon My 2003 dodge neon


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most likely a bad head gasket. These cars usually are not worth fixing. approx $1500.00

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Is it automatic or manual trans? Dose it die as soon as its put in any gear drive or reverse? if so and it being an automatic sounds like its probably a problem with the torque converter clutch.

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