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PO441 code on '97

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Old 04-08-2011, 07:39 PM
donnys97ram donnys97ram is offline
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Default PO441 code on '97

I have PO441 code on my '97 Ram 4X4, has 5.2L, auto trans, magnaflow exhaust, rest of truck is stock. Anyone know what this code is, the light came on while sitting idling with A/C on. Thanks
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Old 04-08-2011, 07:45 PM
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From http://www.obd-codes.com/p0441

Quote:
P0441 Evaporative Emission Control System Incorrect Purge Flow


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

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
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Old 04-08-2011, 08:34 PM
donnys97ram donnys97ram is offline
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Thanks! I'll give these a try, you wouldn't just go ahead and replace the vapor canister purge valve? You recommend these troubleshooting tips first?
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Old 04-08-2011, 08:36 PM
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97 shouldn't have a leak detection pump? Should it????
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Old 04-08-2011, 08:39 PM
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First thing I'd do is check the system for leaks. You can find a complete diagram of the evap system on the radiator crossmember, or in the factory service manual available here in the faqs section.

While a leak would usually throw a separate code, it may not have been detected depending on where in the system it is.
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