Question about Dodge Ram 1500

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2003 Dodge Ram 1500 5.7 engine, Automatic. check engine light came on, scanned for malfunction code and gave me code P0440, any ideas on what is it and how to correct the problem?

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  • dklmn66 Aug 23, 2010

    Thanks a lot for your help

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Code P0440

What does that mean? This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.
FB.init("dd7d9e9681341cde77587bc6a2029f6f"); OBD-Codes.com on Facebook Symptoms You likely won't notice any drivability problems.
Causes A code P0440 could mean one or more of the following has happened:

  • The gas cap is not installed or working properly
  • The purge solenoid has failed
  • The canister is plugged and not working properly
Possible Solutions With a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
  • Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
  • Inspect the EVAP system for cuts/holes in tubes/hoses
  • Inspect for damaged or disconnected hoses around the Evap purge solenoid
  • Check and/or replace the sensor
  • Check and/or replace the purge valve
  • Have a professional use a smoke machine to detect leaks

Posted on Aug 23, 2010

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Posted on Jan 02, 2017

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My 2004 dodge ram randomly hesitates while accelerating


P0420 & P0430 are catayltic coverter codes ! P0440 Evaporative Emission Control System Malfunction P0700 Transmission Control System Malfunction
P0760 = Shift Solenoid C Malfunction

Read more at: http://www.obd-codes.com/forums/viewtopic.php?t=10525
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Read more at: http://www.obd-codes.com/p0700
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Read more at: http://www.obd-codes.com/p0440
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http://www.obd-codes.com/p0420 http://www.obd-codes.com/p0430 http://www.obd-codes.com/p0440 Sounds to me like you have some major problems and need to take your vehicle to a qualified repair shop .

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P0700 Transmission Control System Malfunction P0700 Dogge Ram Yahoo Video Search Results 2005 Dodge Ram 1500 transmission codes p0700 p0841 Transmission Automatic...

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Many vehicles have a control module for the automatic transmission called a transmission control module (TCM). The engine control module (ECM) communicates with the TCM to monitor the automatic transmission for faults. If the TCM detects a fault in the automatic transmission and sets a transmission related fault code, the ECM is informed of this also and sets a P0700 in the ECM memory. This illuminates the Malfunction Indicator Lamp (MIL) to let the driver know there is a problem. If this code is present and the MIL (Malfunction Indicator Lamp) is illuminated that basically means there is at least one transmission code set in the TCM's memory. P0700 is an informational code only. It doesn't point to a direct fault in the engine, only a general fault in the transmission. More diagnosis is necessary to identify what the transmission fault is. This requires a scan tool that will communicate with the transmission module.

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If it is code P0700, then it is a transaxle malfunction code. This is related to your transmission, and can display signs of your transmission slipping, etc.
Is this an automatic?
You can use a scan tool to read the code, and it may give you a more exact fault. O'Reillys will lend you the proper equipment to check, and it is very easy to do.
The TCM (Transmission Control Module) makes your check engine light come on along with it to let you know that there is an issue.
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Please also review the following article:Why Is My Engine Light On?

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Mr. Brian C. Daniels

Please email me back at brian.c.daniels@us.army.mil

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