20 Most Recent 1999 Dodge Neon - Page 11 Questions & Answers

One thing to look at would be whether your oxygen sensor is reading correctly. When the car is cold, the O2 sensor is ignored, since it needs to reach about 900 degrees before it can reliably tell the computer how much fuel to add. Until then, the car fuels itself based on pre-programmed fuel maps. Once it warms up, if it's bad and is telling the computer the wrong information, the fueling of the car will be screwed up, and the car will either run poorly based on what the O2 sensor is feeding the computer, or it'll revert to excessively-rich fuel maps to save the engine from damage. Carbon coming out the tailpipe points to the car running rich, and if the car is running rough, it could be due to excessive fuel in the cylinders. Check your O2 sensor out or change it and see if that helps.

is the alternator belt nice and tight?

could be signs that you need to replace the radiator. neons have a rpoblem with the radiator cores rotting out pretty quickly.

if the alternator hasnt been giving you any problems, did you remove the battery tray at all?

there is a fuse for the cruise control in the fuse box under the hood located right behind the battery. if the fuse is fine, then one of the cruise control components might be bad.

as for the headlight, you might need a new headlight socket. they are easy to replace and the replacement sockets can even be bought at walmart.
if the socket doesnt fix your problem, then you might need a new bright light switch

1491-radiator fan relay control circut
1492-ambient/battery temp sensor volts to high
check and make sure your radiator fan is coming on
samboiv

what is the problem happening?

tell that clearly first sir,

According to some Dodge Neon forums, theres a wire in a harness that gets rubbed through and shorts out. It is located on the back side of the engine near the cylinder head.

They also say it could be the fuel pump relay that is sticking.

its the air intake throttle body housing find your air filter and follow its assembly back to the throttle body this what your looking for the throttle is stuck by some build up in throttle body use some fuel injector cleaner on and in the throttle body

the cd player you are running is probably too much for the alternator that's in the car, especially if it won't start now... take the car in and have them check out the alternator... get this replaced if needed... if you can't do this, simply remove the cd player you installed and see if this fixes the problem... if so... take the cd player in to a certified pro and have them install it for you so you don't have to splice any bad wires and your car will continue to run.

hope this helps :)

Hello mudpie67: My name is Roger and I will help with your question. The correct torque value for the camshaft gear is 115(n.m) or 85 (ft.lbs.) Should You need further help? Please just ask. Please rate the answer. Thank You for using Fix Ya. Roger

Sounds like you still have the timing out. If its out a tooth on the neons it wont start. I have worked on alot of them after people have changed timing belt or water pump....if this is the caes and you have to time it again. What happens in most cases is when cams and crank are in there proper position when tightening the belt eiter one of the cams or the crank slip.....if this is the case contact me and i will give you a few pointers yhat may make it easyer....hope this helps and if so Please rate this post and good luck.

Have you checked the usual issues? Battery in fob and engine connections, fuse boxes (probably 2 one interior and one in engine bay or trunk) do you have a second fob that you can try? If the buttons on the interior do not work then probably a fuse has blown or a relay in which some diagnostic troubleshooting will need to be started. A multimeter and jumper leads (not jumper cables to start a dead battery) will get you far enough. A schematic of the power locks will come in handy.

Question edited for clarity and format. Personal phone number removed. Fixya has 11 million views a year. How many do you want to phone you, 10 percent, 1 percent?? :>D Question moved to Dodge Neon category after adding the word 'Dodge'. Full year make model in all questions please. If the intake gasket had an air leak, it would cause rough idle and 'hunting'. This issue with the Dodge Neon is well publicized. Videos and text based articles in the link https://www.google.com/search?q=2001+neon+se+bad+idle ..

What is everything? What all test have you done?

P0456....Evaporative Emission Control System Leak Detected (very small leak)

P0440....Evaporative Emission Control System

Possible leaking cylinder head gasket.

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