Question about 2002 Chrysler Town & Country

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My wife has 2002 chrysler t&c 3.8l engine. mil on with codes p0442,p0455 relating to evap system. i dont have a smoke gun to look for leaks. how should i track this problem down?

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First check that the fuel cap is tight, ive seen a lot of these codes set for this reason, also a new cap might do the trick, if these fail there is a big mess of vacume lines to the fuel tank and you can get under and do a visual inspection for any broken lines, also check the evap canister for crack or leaks.

Posted on Mar 19, 2011

  • upoys Jun 25, 2011

    I had the same code show up on my 2001 T&C. The code complained of a fuel vaccum leak. Turns out it was the fuel filler neck. The top of the fuel filler neck (where you insert the gas pump) was rusted and had a small hole in it. I ordered a new filler neck online somewhere (for a lot cheaper than the dealership wanted) and installed it myself. Figured I saved hundreds of $$ on labor alone. It really wasn't that difficult. Time-consuming yes, but not overly hard to do. With the new filler neck installed, I drilled really small holes into the top of the neck area, so that any water that pooled there would drain out properly, preventing the neck area from rusting again. Why didn't Chrysler think of that??!!

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Code p0455


PO 455 --Evap System Leak Detected (Gross Leak)

Have it scanned & smoke tested to find leak

You can Google any OBD2 Code & read up
on problems ,solution, anything auto related,
as well as on You Tube Video

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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

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

1 Answer

My 2002 Dodge Grand Caravan Sport recently failed the NC emissions test.The codes it threw were p0442 and p0455.I replaced the gas cap and took it to Advance Auto and this is the codes I got back.Codes...


Chrysler EVAP P0442 P0445 Smoke Diagnostics
P1698 Dodge PCM Fault No CCD Message From TCM
Do you know what a serial data communication network is ?
CCD SCI DATA LINES TECH TIP

Sorry dude but you don't have a prayer of a chance to fix this ! You know anything about automotive electronics , electrical systems ? Have a factory or professional scan tool . Going to advance auto won't cut it .

Apr 27, 2017 | 2002 Dodge Grand Caravan

1 Answer

Check engine light on. code P442. Mil is on. what does this mean?


P0442 CODE MEANS EVAPORATIVE EMISSION SYSTEM SMALL LEAK DETECTED
CHECK EVAP HOSE & CONNECTIONS, INTAKE FOR LEAKS, EVAP CANISTER, OR EVAP CANISTER PURGE VALVE

Apr 25, 2010 | 2004 Hummer H2

2 Answers

My 2001 Jeep has evap leak codes p0455 and p0442, it has been smoke tested and there were no leaks found, but the codes are still there any ideas


I do not know the codes but after a smoke test ,I would use the codes and a schematic to walk down and test every switch or valve in the EVAP System. A professional scanner would be nice,so you could command somethings on and off.

Mar 12, 2010 | 2001 Jeep Grand Cherokee

1 Answer

Codes P0441, 42, &55


Honestly I think the best bet with those EVAP codes is to pay for the smoke test. It will find teeny tiny leaks in the system and will save time. If you just start replacing parts you are totally guessing.

Sorry but that's the really the best option. To help inform you before you go, check out the following resources - P0441, P0442, P0455

Feb 06, 2010 | 1997 BMW 328

1 Answer

2003 Jeep Liberty


p0455 is evap control system no purge or large leak
p0442 is evap control system leak detected (small leak)

the cause for both could actually be a loose gas cap.

Dec 18, 2009 | 2002 Jeep Grand Cherokee

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

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