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  #1  
Old 02-27-2012, 09:41 PM
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Default Engine Code P0441 07' Ram

I just got this check engine code on my truck. Can anyone help me figure out how to fix this? Cost? Work? Will this be covered by dealer warranty?
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Old 02-28-2012, 01:30 AM
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Start by changing the Gas Cap first after you read this .


Evaporative Emission Control System Incorrect Purge Flow
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.
EVAP emission canister purge is contolled by a valve which allows engine vacuum to pull stored fuel vapors from fuel tank into the engine to be burned, rather than be vented to atmosphere. A vacuum switch is used to detect when flow exists. If the PCM commands purge and sees that the switch is closed (indicating no detected purge flow) P0441 is set.
Symptoms

Likely, no symptoms will be discernible to the driver, other than the illuminated Check Engine Light.
Causes

A code P0441 could mean one or more of the following has happened:
  • Bad vacuum switch
  • Broken or damaged EVAP line or canister
  • Open in PCM purge command circuit
  • Open or short in Voltage feed circuit to Purge Solenoid
  • Faulty purge solenoid
  • Restriction in EVAP solenoid, line or canister
  • Corrosion or resistance in purge connector
  • Bad PCM
Possible Solutions

With a P0441 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
  • Common Chrysler fix - Replace Leak Detection Pump / LDP
  • Repair damaged EVAP lines or canister
  • Repair open or short in voltage feed circuit to Purge Solenoid
  • Repair open in PCM purge command circuit
  • Replace purge Solenoid
  • Replace vacuum switch
  • Repair restriction in Evap line or canister or soleniod
  • Repair resistance in purge connector
  • Replace PCM
Other EVAP DTCs: P0440 - P0441 - P0442 - P0443 - P0446 - P0453 - P0455 - P0456
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  #3  
Old 02-29-2012, 10:14 PM
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Yes, I get these vacuum leak codes sometimes. I have an aftermarket gas cap. Sometimes it doesn't seal right. When I get the vac leak code, I turn it til it clicks and then turn it slightly more, perhaps 1/16 of a turn. Then after a day or so (maybe 20-30 miles) the light goes out.

I should just go to the dealer and get a new cap but I never think about it until the light comes on. Of course, this code could be caused by any number of things on your truck, but jiggling the gas cap is a good first step. Especially since its free!

Good luck with it.
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Old 03-01-2012, 09:47 AM
BWhelan BWhelan is offline
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Yeah, I would recommend just buying a new gas cap from Dodge. It may cost you a few bucks, but if it fixes it, life will be good. If it doesn't, well you have an extra gas cap.
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