Question about 2007 Dodge Magnum SE

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Check engine light has been on for 3 weeks, codes have been triggered for EVAC large and small leak and cooling system perform code and the electronic throttle control light is on. car hasnt been hea

Check engine light has been on for 3 weeks, codes have been triggered for EVAC large and small leak and cooling system perform code and the electronic throttle control light is on. car hasnt been heating up and now it will not come on. Temps here have been in the low 20's

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I have no idea why your here or why your using the vehicle,
that makes no sense at all

You have a problem or several
You have retrieved OBD Fault Codes & thus know if
you should be using it

It does not take 3 weeks to diagnose,find & repair,
a vehicle problem

But you can ruin a perfectly good vehicle in 3 weeks
driving it

Posted on Nov 18, 2014

6 Suggested Answers

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Posted on Jan 02, 2017

Mongo32
  • 111 Answers

SOURCE: check engine light comes on

"po455 large leak" means that you are not maintaining positive pressure in your fuel system. Have a mechanic do a "smoke test" on the fuel system. Could be as simple as a loose gas cap...

Posted on Jun 01, 2009

leetamara
  • 702 Answers

SOURCE: My 2002 Dodge intrepid has it engine light on

The MAP sensor and Knock Sensor are both very easily replaced. A better scanner will tell you which sensor is going bad on your transmission. An Autozone code reader will not tell you which sensor on the trans. is acting up. Most sensors on your trans. are very easity replaced as well. They just screw in and plug it. It's worth paying to get a "real" scan done. The trans. sensors are inexpensive and you can replace any other your listed sensors yourself.

Posted on Jul 11, 2008

  • 55 Answers

SOURCE: electronic throttle control, cruise control

You need to have the codes read. The electronic throttle relies on an APP sensor and a TPS sensor. A problem with either one of these will cause this. Also, the cruise would be affected by this, as there is no cruise servo, it's controlled be the electronic throttle body.

Posted on Oct 19, 2008

motor1258
  • 6674 Answers

SOURCE: trouble code po456 evap small leak ? could it be the gas cap ?

Can't say 100% obviously, but quite often that is the cure, but try to take some time to make sure all your hoses , in the system are in good shape & tight.

Posted on May 31, 2009

motor1258
  • 6674 Answers

SOURCE: OBD codes 442 & 455

Check all of your EVAP lines and the charcoal canister. Also check the lines and overflow line from the gas cap to the gas tank.

Posted on Jun 12, 2009

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Code PO446 on evac system. what does it mean. engine light remains on 2004 montero sport all wheel drive with 4x4


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From a reputable repair website:


P0351 - OBD-II Trouble Code

Auto Systems and Repair

Ignition Coil "A" Circuit Primary/Secondary Malfunction Our emissions expert has put together the following information about the P0351 fault code. We have also included diagnostic procedures you can take to your repair shop if the mechanic is having difficulty analyzing the code.
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Check Engine Light On


Check Engine Lights come on due to an electrical component failure or if a sensor is registering something outside the vehicles set working parameters on your vehicle. The diagnostic machine would not tell the mechanic that a radiator hose is leaking; However, if the coolant level is low within the cooling system (due to a leak), your temperature sending unit may register a fault through your vehicle's computer... setting off the check engine light.

If the car has been driving normally, you haven't noticed any leaks within your cooling system, and your temp gauge is not registering hotter than normal, then this probably isn't the case.

Have a different mechanic perform a diagnostics test to see what fault codes are stored in your car's computer. Also, to double check for leaks within your cooling system, have them perform a pressure test on your radiator. This will uncover any leaks, if any.

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2000 cavalier check engine light code po440


P0440 - Evaporative Emission (EVAP) System


evaporative emission (EVAP) system has a large leak.
Check the gas cap or vent valve. these are the most common problems.


The Powertrain Control Module (PCM) at different times performs various tests on the EVAP system. OBD II Enhanced EVAP systems are in place to keep fuel tank vapors from venting into the atmosphere, and instead purges them into the engine to be burned. Regular pressure tests are conducted by the PCM to monitor the sealed system for leaks. The PCM monitors the EVAP system pressure by watching the Fuel tank pressure sensor (FTP). When the sensor indicates a small leak in the EVAP system, this code is set.


Here are some additional causes.

* A small leak in any of the EVAP hoses or fuel tank hoses
* A small leak in the purge valve or vent valve
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