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P0455 evap does a p0455 evaporative leak affect gas mileage on a 4.7 liter v8 dodge engine

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6ya6ya
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Posted on Jan 02, 2017

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freetek
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SOURCE: Evaporative emission system - small leak/no BB flow condition

Although I recommend you buy a Haynes service manual for your Dodge, I think you will find the canister attached to the firewall or one of the fender wells. Most of them look a lot like an overgrown spam can and it will have two connections on it.

Posted on Mar 06, 2009

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SOURCE: how to replace water pump on 1995 dodge dakato 5.2 liter V8

When I do those I find it's easier to get some of the stuff out of the way. Fan shroud, Alternator, AC compressor(don't remove AC hoses just swing it over to the side) and the AC/alternator mount bracket. If you don't have the special hose clamp plyers they are worth buying. (those clamps are difficult with regular plyers) The fan clutch has a special wrench which is thinner. When you start the job break loose the fan clutch before you remove the belt. It keeps tension on the pulley. The nut is normal threading and usually comes loose with a sharp rap of the hammer on the fan clutch wrench.
Here is an illustration of the water pump bolts. I hope this helps you out. let me know how it goes.6f7219e.gif

Posted on Apr 05, 2009

csmock132
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SOURCE: what kind of tranny will work to replace mine?

Yes. They should both be 46RE transmissions and the bolt patterns and the plugs should be the same.

Posted on Jun 20, 2009

ZX2Fast
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SOURCE: 2002 dodge carvan shows code P0455

That last time I fixed this code it ended up being a leaking EVAP hose on top of the fuel tank. I had to drop the tank and put new sealant on the hoses to stop the leak.

Posted on Mar 05, 2010

BCAS1298
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SOURCE: 01 dodge ram 1500 5.2 4WD code P0455 evap system leak.

This code will not stall or no start of your engine, evap only work when engine is off, it is to reduce the fume your gas tank lets out to protect the o zone, but it will not pass Emission test, also could be some thing a small as your gas cap not sealing right.

Posted on May 27, 2010

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My 2003 doge g caravan shows engine light on. diagnostic code is p0455. I don't know what that code stands for. could you help me so that I can fix on time


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

Jun 24, 2011 | Dodge Caravan Cars & Trucks

1 Answer

Ck engine is on Dealer found code P0455


DTC P0455 - 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

Test it and send us news.

Mar 14, 2011 | 2004 Mitsubishi Endeavor

2 Answers

Service engine Diagnosis Code PO455 Transmission revs up


Hi, the code 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.

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


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

Mar 05, 2011 | 1999 Ford Taurus

2 Answers

Dodge Durango code shows 0051: where is Sensor 1/Bank 2? Where can I find a pix or diagram? Code also showsP0700 & P0455; what do these mean? Thanks.


Bank 1 is the same side of the engine as the number one cylinder. Bank 2 is the other side of the engine. Sensor one is always before the catalytic converter. Sensor 2 is always after the catalytic converter.

P0455 is an EVAP leak check the evap hoses for cracks/leaks.

P0700 is a generic code that lets you know you need to scan the transmission control module to see what codes are stored in it.

Sep 26, 2010 | Dodge Durango Cars & Trucks

1 Answer

01 dodge ram 1500 5.2 4WD code P0455 evap system leak.


This code will not stall or no start of your engine, evap only work when engine is off, it is to reduce the fume your gas tank lets out to protect the o zone, but it will not pass Emission test, also could be some thing a small as your gas cap not sealing right.

May 27, 2010 | 2001 Dodge Ram 1500 Truck 2WD

2 Answers

I have a 2001 dodge ram with a 5.2 liter 318 engine. i checked my code & it came up as #P 0455. the problem i am having is when you first touch the gas, it has just a little bit of hesitation &...


P0455=EVAP Emission Control System Leak (Large Leak)

Possible gas cap fix, cheapest try first.

Check the gas cap thoroughly, the P0455 code your getting for the large leak isusually a bad gas cap.

Also check the lines on the canister tank,right underthe passengers side of the cab, there are two lines on top that will rotand fall off or get loose enough that they will cause that problem.

You can also check on the passengers side fender well under the hood andlook at the elbows on the EVAP valve that has the hoses that run downto the canister tank, chances are one of them is loose or bad.

Best to get a factory service manual to have handy through all of this. Promanuals.net has complete factory ones for around 20 bucks. Here is a link 2001 Dodge Ram Service Manual.

Sep 28, 2009 | 2001 Dodge Ram 1500 Truck 2WD

2 Answers

OBD II Engine code


P0455 is a EVAP system leak detected code check to make sure your gas cap is tight or if you put gas in it while it was running and can set it . First tighten the gas cap then clear the code and drive and see if the code comes back.

Jun 10, 2009 | 2001 Dodge Dakota

2 Answers

Check engine light is on p0455 is the code whatis it


P0455 EVAP EMISSIONS SYSTEM GROSS LEAK DETECTED.CK GAS CAP.IF IT IS TIGHT U WILL NEED A SMOKE MACHINE TO CK THE SYSTEM FOR LEAKS

May 04, 2009 | 2003 Chevrolet Silverado 1500

5 Answers

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

Jun 07, 2008 | 2001 Dodge Caravan

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