Question about 2002 Dodge Grand Caravan

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What does these codes mean they came up in the milage area when i did a computer check p 1684 po3o3 po442 po455

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Posted on Jan 02, 2017

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SOURCE: 2001 Dodge Caravan/check engine light

P0442--Evap Emission Sys. leak detected small leak
P0455--Evap Emission sys. leak detected gross leak
P0456--Evap Emission Sys. leak detected very small leak

Posted on Jun 11, 2008

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SOURCE: Code PO442 & PO455 on a 2003 Dodge Caravan with 3.3 engine

The problem is most likely to be with your vacuum line they put cheap rubber hose for this purpose. You should find a diagram at the front of the vehicle trace the hoses by this diagram. You most likely will find a bad piece of hose.

Posted on Jul 20, 2009

  • 3640 Answers

SOURCE: Failed Emision test

po442 is evap emission control system leak (small) 1 of the lines for emissions is leaking. po455 is-- emission control system leak (large). turn off light with code scanner after it is fixed.

Posted on Sep 01, 2009

  • 973 Answers

SOURCE: diagnostic codes

http://www.obd-codes.com/p0442
http://www.obd-codes.com/p0455

Click on the links above to help you.

Posted on May 27, 2010

  • 5370 Answers

SOURCE: 2000 Caravan,error codes po135, po403, po442,

The error code P0135 ,this error code is related to O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1).It would be a upsteam o2 sensor.The upstream one which is mounted on the exhaust manifold. The sensors is located in the back of the engine on the exhaust pipe. You must have a O2 sensor socket to replace it because of where it is located. You can borrow one of these from Autozone.The sensorlooks like a sparkplug with 2 wires coming out the top of it. The error code P0403 , this error is related to Exhaust Gas Recirculation Circuit Malfunction. For the details about this error i suggest you to click the link shown below. The link :--- http://www.obd-codes.com/p0403 ------------- The error code P0442 ,this error is related to leak in the Vaporative Emissions or EVAP system. Common problem. Few places to check - rubber hose under air box (requires removing the airbox) and hoses connecting to evap system under the van on the drivers side. -------------- The error code P0445 .This error indicates Evaporative Emission Control System Purge Control Valve Circuit Shorted.Try replacing the gas cap.If its loose then tight the gas cap and check. The charcoal canister stores gas fumes from the gas tank. Every so often, the computer commands a "purge valve" to open up and draw fresh air through the canister to remove the gas fumes. The engine sucks those fumes into the intake manifold and burns them.The purge valve is an electric solenoid valve. Actually, there are two of these valves--one is the purge valve that opens the vacuum line between the canister and the intake, the other is a vent valve that opens the canister to take in fresh air. The computer monitors the voltage on the lines to the valves and watches for a voltage drop when it commands the valves to open. If it doesn't see that drop, it stores a code. ---------------- This are the details of the error codes mentioned by you.The mentioned parts has to be checked and replaced to clear up the problem. -------Thanks.helptech.

Posted on Nov 12, 2010

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Codes0441 0442 0455 0456


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Diagnostic codes PO442, PO305 and PO455 comes up on the computer. What do these codes mean?


P0305....Cylinder 5 Misfire Detected


P0442....Evaporative Emission Control System Leak Detected (small leak)


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Ford trouble codes po442.......po455.where to look for problem. have repacedgas cap.


EVAP Codes. You will have to go thru entire evap system,looking for a small leak (po442) Hoses,Switches,Valves etc. See if you can borrow a smoke machine.

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Failed Emision test


po442 is evap emission control system leak (small) 1 of the lines for emissions is leaking. po455 is-- emission control system leak (large). turn off light with code scanner after it is fixed.

Sep 01, 2009 | 2001 Dodge Caravan

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Code PO442 & PO455 on a 2003 Dodge Caravan with 3.3 engine


The problem is most likely to be with your vacuum line they put cheap rubber hose for this purpose. You should find a diagram at the front of the vehicle trace the hoses by this diagram. You most likely will find a bad piece of hose.

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2001 Dodge Caravan/check engine light


Is your gas cap tight? check it, these codes indicate a large leak in the fuel evaporative emission recovery system at the gas tank

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