Question about 2001 Dodge Grand Caravan

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OBD 2 codes p0442 and p0455, also smell of fuel from ventalation system

Fuel fumes are coming from the ventilation system. And the engine trouble indicator light is on. an OBD 2 test indicates p0442 and p0455 codes

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  • rockboomer Dec 16, 2008

    same problem, but no smell off fuel.



    Sean

  • rockboomer Dec 16, 2008

    same problem, but no smell of fuel.



    Sean

  • Anonymous Jan 05, 2009

    i have a 2001 mitsubishi eclipse and is giving me the same problem. it shows code p0455 and it also smell of fuel from the ventilation

  • Anonymous Feb 27, 2009

    The problem started out with an evaporative emission leak (very small) and is now coming up as a Gross leak. I have looked everywhere and found nothing. I just replaced my fuel pump and filter and still...same issue. I was told it could be as simple as the gasket for the gas cap, still no results.







  • Paul Bonner Mar 29, 2009

    I have an almost identical problem on a 2003 Dodge Caravan which I hope I finally fixed - it started with P0442 (small leak) - first I replaced the gas cap but this did not solve the problem. Next I paid to have the EVAP system smoke tested -- they found a split in the L-shaped pipe coming off the Charcoal cannister, which I replaced. After a week (waiting for the monitors to set) the code changed to a P0455 (major leak or no flow). I went back to the garage and they told me the leak detection pump needed to be replaced - which I did, but this again did not fix the problem.

    Yesterday I pulled out the air filter housing under the hood - below it I found a 2 inch connector hose in the EVAP system which has multiple splits in it where it stretches over the flared metal pipe end - I believe this is the source of the large leak. I replaced the pipe and cleared the codes -- now I need to drive around for another week to confirm it is fixed. My theory on why the OBD code changed from a minor to major leak is the positive pressure used during the leak detection process opened up the already split hose piece.

  • fish2002blu Apr 28, 2009

    1997 caravan code from OBD2 and engine check light and smell of gas code read small leak in evaporating system....??

  • Anonymous Mar 25, 2014

    obd 2 reading

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  • Dodge Master
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These codes indicate a leak(s) in the fuel system, it can be anywhere, you will have to crawl under and try and see where the leak is, you will need a scanner to turn off the light after repairing the leak(s)

Posted on Sep 28, 2008

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Jan 01, 2016 | 1999 Chrysler LHS

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How do I no my solend is bad


A code P0442 most likely means one or more of the following has happened: A loose or improperly affixed gas cap A non-conforming gas cap (i.e. not factory/original brand) A small leak/hole in a fuel vapor hose/tube Other small leak in EVAP system Faulty vent o-ring seal Defective vent valve Defective purge valve Defective leak detection pump

Read more at: http://www.obd-codes.com/p0442
Copyright OBD-Codes.com

Oct 01, 2015 | 2003 Dodge Dakota Club Cab

2 Answers

P0455 and p0442


p0455-- emission control system ( a large leak ) the most common cause is a bad seal on fuel cap, remove and replace cap, if light stats on. replace cap. if not the cap it could be any where in emission system. p0442 is--same as above. Code p0442 indicates a fuel vapor leak in the EVAP control system. To fix this problem, remove and reinstall the gas cap. Clear the codes and drive to see if the codes reappear. If the code appears again replace the gas cap or inspect the system for cuts or holes in the tube or hose. good-day !

Aug 24, 2011 | 2002 Jeep Grand Cherokee

2 Answers

P0449 and P0455 error code 2008 2wd gmc envoy 30,203 miles


P0449 - Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction

P0455 - Evaporative Emission Control System Leak Detected (no purge flow or large leak)

Both are refer at EVAP system; other EVAP DTCs: P0440 - P0441 - P0442 - P0443 - P0446 - P0453 - P0455 - P0456

This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. 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.

Symptoms: You likely won't notice any drivability problems.
Causes: most likely means one or more of the following has happened:
A loose or improperly affixed gas cap
A non-conforming gas cap (i.e. not factory/original brand)
Other leak or damaged piece in EVAP system

Possible Solutions: the most common repair is to:
Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
Otherwise, replace the gas cap, and/or
Inspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary


Hope helps.

Apr 23, 2011 | 2008 GMC Envoy

1 Answer

Code p0455 on volvo s70


P0455 OBD-II - Evaporative Emission Control System Leak Detected (no purge flow or large leak)

This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. 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.

Symptoms: You likely won't notice any drivability problems.

Causes: A code p0455 most likely means one or more of the following has happened:
A loose or improperly affixed gas cap
A non-conforming gas cap (i.e. not factory/original brand)
Other leak or damaged piece in EVAP system

Possible Solutions: With a p0455, the most common repair is to:
Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
Otherwise, replace the gas cap, and/or
Inspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary


Hope this helps (remember to rate and comment this answer).

Apr 12, 2011 | 1999 Volvo S70

1 Answer

HAVE A 2001 JEEP GC IS NOT RUNNING RIGHT TOOK IT TO ADVANCE, HOOKED IT UP TO THE OBD COMPUTER AND IT GAVE ME THREE CODES PO303 CYL. 3 MISFIRE,PO442 EVAP SYSTEM SMALL LEAK, AND PO455 EVAP EMISSION LARGE...


Most likely, the P0442 and P0455 are not the causes for your engine problem, they are related to the fuel supply system (check http://www.obd-codes.com/p0442 ).

P0303 is the problem.
First, I'd try to change the spark plugs. If still not OK, I'd try to use an "Fuel system cleaner" or "Injector cleaner". These are some small plastic bottles you can buy at car-parts shops. You need to buy the version according to your engine type (gas or diesel) then use it as stated on the instructions printed on the bottle.

Of course, the problem could be worst, but 90% of the problems are caused by small causes.

Mar 08, 2011 | 2002 Jeep Grand Cherokee

2 Answers

Location of sensor for troubleshooting po442 to cause check engine light to come on


P0442 OBD-II Trouble Code - Evaporative Emission Control System Leak Detected (small leak)

What does that mean?
This indicates a fuel vapor leak in the EVAP control system. It means a very small leak has been detected. In fact, the leak can be from a hole as small as 0.04" in diameter. 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.


Symptoms
You likely won't notice any drivability problems.


Causes
A code P0442 most likely means one or more of the following has happened:
* A loose or improperly affixed gas cap
* A non-conforming gas cap (i.e. not factory/original brand)
* A small leak/hole in a fuel vapor hose/tube
* Other small leak in EVAP system
* Faulty vent o-ring seal


Possible Solutions
With a P0442, the most common repair is to:
* Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
* Otherwise, replace the gas cap, or
* Inspect the EVAP system for cuts/holes in tubes/hoses


46b629a.jpg

Fig. EVAP vent solenoid (2) on 3.1L, 3.4L, 3.5L & 3.8L, showing the connector (1) and vapor line (2)


510065b.jpg

Fig. EVAP canister purge solenoid location on 3.1L & 3.4L


a193655.jpg

Fig. EVAP purge solenoid valve (3) location on 3.5L




Hope this help, good luck.

May 11, 2010 | 2002 Buick Century

1 Answer

MY 2002 NEON HAS 2 CODES P0442 AND P0455 I HAVE CHANGED THE FUEL CAP BUT STILL KEEP COMING BACK


both those codes point towards evap system leak, p0442 being a small leak and p0455 being no purge or large leak, check the charcoal canister and linds attached to it for holes.

Oct 27, 2009 | 2002 Dodge Neon

1 Answer

Engine light code P0455


What does that mean? This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. 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.

Symptoms You likely won't notice any drivability problems.
Causes A code p0455 most likely means one or more of the following has happened:
  • A loose or improperly affixed gas cap
  • A non-conforming gas cap (i.e. not factory/original brand)
  • Other leak or damaged piece in EVAP system
Possible Solutions With a p0455, the most common repair is to:
  • Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
  • Otherwise, replace the gas cap, and/or
  • Inspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary
This content was copied from the Web Link below:
http://www.obd-codes.com/p0455

Apr 29, 2009 | 2000 Mitsubishi Galant

1 Answer

P0455 Code


Hello,
P0455 OBD-II Trouble Code Technical Description Evaporative Emission Control System Leak Detected (no purge flow or large leak)
What does that mean? This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. 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.
Symptoms You likely won't notice any drivability problems.
Causes A code p0455 most likely means one or more of the following has happened:
  • A loose or improperly affixed gas cap
  • A non-conforming gas cap (i.e. not factory/original brand)
  • Other leak or damaged piece in EVAP system
Possible Solutions With a p0455, the most common repair is to:
  • Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
  • Otherwise, replace the gas cap, and/or
  • Inspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary
Also check all rubber hoses anywhere on the engine and look for Cracked or /loose fitting hoses.

Hope This Helps!!!
Good Luck
Rich Lilja

Nov 26, 2008 | 2000 Chrysler Grand Voyager

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