the service engine soon light comes on?

This guide should help us fix it

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

when was last tune-up? was it damp or raining when this happened?

check engine over for vacuum leaks. that could be whistling noise. and cause bucking do to lean fuel condition from extra air intake.

It wasn't raining it was dry and can I have codes checked even if the check engine light isn't on? My car has both check engine and service engine soon light.

yes you can check codes without light on. may not be any. what motor is in it?

my check engine light code po440-Evaporative Emission Control System Malfunction.the cel will come on for about 4 days,then it would go off,then come on again, then go off,i got a new gas cap from autozone not from the dealer,can the gas cap be the cause

Gas cap is usually the first thing to change, but there are purge solenoids and other electrical components in EVAP system.

I would get a factory cap, if problem persists, then the EVAP system will have to be tested to make sure all components are functioning.

thanks for the info

You are welcome. But also know that the EVAP system also consists of valves/purge solenoids which may be the problem, but the cap is the best starting place.

We had the car in because the check engine light came on they could not find anything but reset all the senson. driving home tonight the light came on again and the car is bucking, like no as is getting in the line. what could b wrong?

will the car start? if so then check the fuel pressure . If you don't know how then check this out.
2carpros video
https://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm

2003 Dodge Stratus 4 cyl Front Wheel Drive

2003 dodge stratus 2.4L sxt...my check engine light came on 3 months ago for a P0440 Evaporative Emission Control System Malfunction code.stayed on for about 1 week then suddenly it went out but now it just came back,can it be a glicth or what can it be

a few details and possible causes are below for this DTC..

Mechanic told me it was my valve canister that needs to be replaced. Is that the black box that is in front of the gas tank? And if so is it fairly easy to remove and replace?

There are a few items in the EVAP system that could be the problem. Without knowing the exact code or what testing was done it would be hard to say which part he is talking about. Some are easy to access while others are in the tank. The image attached shows what I mean. Many of those items require you drop the fuel tank to gain access.

check engine light comes on and off sometime takes a few turnovers to start cuts out while driving on highway. its a 2003 dodge status

Go to this link for more information this is your starting point of diagnosis :https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Recently my Stratus has a hard time starting. It chugs and sometimes won't start on the first try. Now, my temperature guage is all over the place, mostly on the hot side (and the oil temp light has come on). My check engine light is on. I have checked all my fluids and their all good. Whats up?

I would start diagnosis with the check engine light. Bring the vehicle to your local Autozone and have them scan the computer for free. Post the code NUMBERS, not descriptions.

check engine light stays on no codes detected took vehicle to dealer and was told i needed a new computer vehicle runs perfect though but time for inspection sticker

It sounds like the PCM could be bad here is the instruction on how to replace it in the diagrams below.

See if it will reset. Also, try a scanner to reset. If there are no codes, the dealer is most likely correct.

Engine Performance problem
2002 Dodge Stratus 4 cyl Automatic 62,000 miles

the code is saying that it has something to do with the gas. Gas cap is on tight. Made sure that I fueled up twice with really good Vpower gas because I thought maybe I had gotton some bad gas. Put fuel injector cleaner each fill up.

Problem: Light is still on after being reset and car sputters upon eceleration. Especially a quick eceleration. It doesn't have the power.

What's the DTC or P code/s that popped up.?

I could give myself a kick, but I didn't see it. the gentleman that was using the device just said that it had something to do with the gas or gas cap.

Could be one of the following below

P0440 Evaporative Emission Control System Malfunction

P0441 Evaporative Emission Control System Incorrect Purge Flow

P0442 Evaporative Emission Control System Leak Detected (small leak)

P0443 Evaporative Emission Control System Purge Control Valve Circuit Malfunction

P0444 Evaporative Emission Control System Purge Control Valve Circuit Open

P0445 Evaporative Emission Control System Purge Control Valve Circuit Shorted

P0446 Evaporative Emission Control System Vent Control Circuit Malfunction

P0447 Evaporative Emission Control System Vent Control Circuit Open

P0448 Evaporative Emission Control System Vent Control Circuit Shorted

P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction

P0450 Evaporative Emission Control System Pressure Sensor Malfunction

P0451 Evaporative Emission Control System Pressure Sensor Range/Performance

P0452 Evaporative Emission Control System Pressure Sensor Low Input

P0453 Evaporative Emission Control System Pressure Sensor High Input

P0454 Evaporative Emission Control System Pressure Sensor Intermittent

P0455 Evaporative Emission Control System Leak Detected (gross leak)

P0456 EVAP Leak Monitor Small Leak Detected

I'm pretty sure it's the PO455, I remember seeing now.

What you need to do here is get it smoked tested.

for 8 month now the light is on, my DEQ was due in May 2011, now it's September 2011! New gas cap, better gas and engine cleaner twice, new hoses, last week new charcoal filter and still, after driving 25 miles the light came back on!!! Help now...
What else could be wrong with it? What else to look for? Code was 442 and 456.

What's a "DEQ"?

To find small leaks in the evaporative emissions system, rent or borrow a smoke machine. That will inject white non-toxic smoke under two pounds of pressure into the system, then you can look for where the smoke comes out. Small leaks are impossible to find any other way.

it has a rough start, and now all the battery, oil, brake, and service engine light will not go off.

Check the charging system. Use an inexpensive digital voltmeter to measure battery voltage while the engine is running. It must be between 13.75 and 14.75 volts. If it is low, the system can be diagnosed by measuring the two voltages on the two small wires or terminal nuts on the back of the alternator while the engine is running.