Question about 2001 Dodge Grand Caravan

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2001 Dodge grand caravan with P0456 fault code (evaporative Emission system small leak). What could be causing this and how do I fix it?

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Hose cracked,loose,different switches,sensors,gas cap, any number of things. It is a system, on to itself and not easy to repair.

Posted on May 12, 2010

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P4056


As far as I know there is no code number p4056 in the Toyota code book. It might be:
Error Code: P0456 Fault:
Evaporative Emission (EVAP) System - Small Leak Detected
Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.
Fuel Cap not fully attached.
Evaporative Emission (EVAP) System leaking/faulty.
Evaporative emission (EVAP) pressure sensor.
Possible Solutions:
Check Fuel Cap.
Check Evaporative Emission (EVAP) System.

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1 Answer

What does code po456 means


codse p0456 refers to evaporative emission system-- very small leak detected.. probable causes -----mechanical fault---hose connections loose---EVAP pressure sensor.. I would look at the EVAP sensor as being faulty

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Engine light shows a code P0456 (small evap leak) on 2005 Grand Caravan. Replaced gas cap but engine light stays on.


It is likely a leaky hose in the evap system. The chemicals passing through the hose cause it to become brittle, causing cracking. Take a look at this instruction to see if it helps:
http://www.dodgetalk.com/forums/showpost.php?p=1169489&postcount=6
LMK if it helps troubleshoot the problem.

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Hi I have a Dodge Neon 2003 with engine codes P0456 and P0440. What do these mean and how do I fix them


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Evaporative emission (EVAP) control system leak detected (very small leak)
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1 Answer

Check engine light on fault code p0456


Small leak in Evaporative emission system. Could be as simple as a bad seal at gas cap, or maybe wasn't put back on tight,especially if you noticed it shortly after getting gas. Otherwise check all vacuum lines for snug connections, and examine for cracks as well.

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1 Answer

2002 dodge gr caravan code p0135 and p0456 what do these mean


135 is O2 Sensor Heater Circuit (bank 1 sensor1)

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3 Answers

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1 Answer

Failed Emision test


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2005 Dodge Grand Caravan codes P0456 and P0303. Engine light on. Changed Gas cap. Need to pass inspection. Please help with diagnosis.


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Jun 04, 2009 | 2005 Dodge Grand Caravan

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