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2003 Dodge Caravan iM getting the P0456 code on 03 grand ca

Tiny
RALLEV79
  • MEMBER
  • 2003 DODGE CARAVAN
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 72,222 MILES
Im getting the p0456 code on 03 grand caravan and have bought and thrown out several gas caps so I dont think that is the problem. Many posts say the problem then is most likely the fuel vapor canister but I do not know where that particular part is located and cant find a good schematic online. What do I do to get rid of the code?
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Tuesday, May 19th, 2009 AT 4:07 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,864 POSTS
Most shops have a "smoke" machine that can pressurize the evaporative emissions system with two pounds of pressurized non-toxic smoke to find leaks. They might find a cracked vacuum hose or a purge solenoid that isn't closing properly. The loose gas cap is just the most common cause of a leak but by far not the only one.

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Wednesday, May 20th, 2009 AT 1:10 AM

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