Question about Cars & Trucks

1 Answer

Any easy solutions on figuring out P0456 code on a 2004 ram 1500 5.7 hemi. I checked hoses all look good , seal on gas cap is in good shape

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Cars & Trucks Expert
  • 274 Answers

Go to engine-codes.com it tells you about your code

Posted on Nov 20, 2014

  • Mark Doyle Nov 20, 2014

    Thanks,I know what the code is
    I'm just trying to figure out an inexpensive way of diagnosing it

  • Mark Doyle Nov 20, 2014

    Thanks,I know what the code is
    I'm just trying to figure out an inexpensive way of diagnosing it

×

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

dustyboner
  • 331 Answers

SOURCE: Diagnostic code P0456 for 2003 Dodge Ram 1500 5.7

P0456 = EVAP Emissions Control System Leak Very Small

Is the gas cap on tight or is the seal damaged? If it needs replacement, get it from the dealer.

Posted on Aug 24, 2008

micromaster
  • 3614 Answers

SOURCE: EVAP control system problems - P0440 and P0456 codes

1) Determine the engine code cause for the Check Engine Light (C.E.L. or CEL)
2) Insert key into ignition
3) turn key to "on" posittion without starting the vehicle
4) VERY VERY quickly turn the key off one click, then on, then off, then on; cycling for 3 turns of the key (NOTE: you might have to try this a couple of times to get it just right)
5) leave on, and read the engine diagnostic code(s) that are output in the mileage counter
6) We got Code P0440 (or P 0440 or P-0440) (variations inserted for search engines)
7) A quick search of the web yielded about 3 or 4 usefull details.
8) Diagnostic code P0440 is the Evaporative Emissions Control System Malfunction (failure) of some type. Details of this type of failure and what the Evap System does for you:
9) Other web pages indicated it might be as simple as the Gas Cap being seated incorrectly, or not sealing correctly any more
10) I took it off, yes it was seated incorrectly, and reseatted it firmly
11) Now you need to clear the Check Engine Light indicator (it will clear *eventually* over time if this is TRULY the problem - I recommend you clear it now - that way is a deeper problem with the EVAP system exists, it should come on again - giving another clue something else is amiss
12) One suggestion was to take the Negative (black) cable off the battery for 10 to 20 seconds -- I did - for 30 seconds to be sure
13) You *must* turn the Engine on and start the vehicle all the way before the Check Engine Light might clear - if it doesn't try the following:
14) Turn the ignition on 50 times - yes - 50 times - but be careful, every time you cycle the ignition on (without starting the vehicle) you are turning on the Fuel Pump - continuous cycling can theoretically (according to some posts) cause it to heat up and be damaged - so every 10 times stop and let it rest for a full minute to cool down.
15) After 30 times of doing this (3 sets of 10), turn the engine fully on - see if the check engine light goes off) if it doesn't, do the remaining 20 times (2 sets of 10).
16) if it still doesn't go off, you may have a deeper issue that might require attention of the mechanics

Posted on Oct 05, 2008

  • 1 Answer

SOURCE: 04 dodgebram 1500 hemi stalls some times

Check the throttle body---if it is very dirty it causes the air flow to change and causes stalling --cleaned mine and no problems / also change PCV valve go to hemitruckclub.com and lots of tips and fixes..........

Posted on Mar 11, 2009

  • 66 Answers

SOURCE: Need diagram to install serpentine belt on 2004

There should be a diagram under the hood on the fan shroud or radiator support. If not, let me know and I see if I can find one. For the most part, if the pulleys it rides on are grooved, the belt ribs ride on it, it the pulley is smooth, the back side rides on it. From a picture of the alternator I have, from the passenger side coming up, over the alternator, then down and under the belt tensioner (smooth pulley), then up and over A/C compressor, then down and around P/S pump, up and around water pump, down around crankshaft pulley.

Posted on Jun 03, 2009

hotrodshop
  • 106 Answers

SOURCE: I have a 2003 dodge ram 1500 with a V-8 4.7 engine

The leak in your evap system is very small at .020. It is more than likely a small split in a hose somewhere. The cap is probably ok, we rarely find a bad one. If it is a small split in a hose it will only get larger over time. Here is the factory info on the code. We have found that alot of these leaks are from a small hose on the evap canister under the vehicle, but with out looking at your vehicle it is hard to say. If the leak goes away or is no longer large enough to be detected, your light will go out after a few days. These leaks are emmissions related and will not effect the integrity of the vehicle. I would have it checked and corrected if the light stays on at your convienience.

Symptom List:
P0442-EVAP LEAK MONITOR MEDIUM (0.040) LEAK DETECTED
P0455-EVAP LEAK MONITOR LARGE LEAK DETECTED
P0456-EVAP LEAK MONITOR SMALL (.020) LEAK DETECTED
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P0442-EVAP LEAK MONITOR
MEDIUM (0.040) LEAK DETECTED.
When Monitored and Set Condition:
P0442-EVAP LEAK MONITOR MEDIUM (0.040) LEAK DETECTED
When Monitored: Immediately after a cold start, with battery/ambient temperature
between 40° F and 90° F and coolant temperature within 10° F of battery/ambient.
Set Condition: If there is a leak larger than 0.0409 and smaller than 0.0809 in the
evaporative system.
P0455-EVAP LEAK MONITOR LARGE LEAK DETECTED
When Monitored: Immediately after a cold start, with battery/ambient temperature
between 40° F and 90° F and coolant temperature within 10° F of battery/ambient.
Set Condition: There is a leak larger than 0.0809 in the evaporative system.
P0456-EVAP LEAK MONITOR SMALL (.020) LEAK DETECTED
When Monitored: Immediately after a cold start, with battery/ambient temperature
between 40° F and 90° F and coolant temperature within 10° F of battery/ambient.
Set Condition: There is a leak larger than 0.0209 and smaller than 0.0409 in the
evaporative system.
POSSIBLE CAUSES
LEAK AT GAS CAP
VEHICLE HISTORY AND SERVICE BULLETIN INVESTIGATION
VISUAL AND PHYSICAL INSPECTION
VERIFY EVAPORATIVE EMISSION SYSTEM LEAK
EVAP PURGE SOLENOID OPERATION
INTERMITTENT LDP MONITOR FAILURE
EVAPORATIVE EMISSION LEAK DETECTION
GAS CAP
LDP COMPONENT LEAK

Posted on Jun 12, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Dodge ram gas cap light and check engine light on at the same time p0456 and p0457


456 is a small evap leak check hoses to evap canister by fuel tank.

Oct 10, 2014 | Dodge Ram 1500 Cars & Trucks

1 Answer

04 DODGE Ram hemi cylinder 3 misfire


Check engine compression and compare. then test running engine compression most engines have about 130-170 cranking compression and about 90-110 running compression. OR bring that cylinder to its Top Dead Center compression stroke apply air to the cylinder and check to see where the air is going open throttle plate bad intake valve, from exhaust pipe bad exhaust valve, from oil cap piston rings.

Mar 23, 2014 | 2004 Dodge Ram 1500

3 Answers

P0456 error code on a 2003 Mits. Galant


P0456 = "Evaporative emission (EVAP) control system leak detected (very small leak)."

Feb 25, 2011 | Mitsubishi Galant Cars & Trucks

2 Answers

2006 ram 5.7 litter hemi troubble code p0456 what is it . how to fix it


Hi, I believe this to be due to the loss of "fuel tank pressure". This was designed so that gas vapors are vented to the engine and does not leak out to the open atmosphere. How long have you had this problem? Most likely, I would say it would be a faulty gas cap not sealing correctly. Other possibilities include leaks from fuel tank hoses or evap hoses. There are also valves (i forget the name) that need to be checked too. It's like valve solenoid or solenoid valve.
Leaving your car on while filling up your tank can cause this too sometimes. I would start with the inspection of your gas cap, drive it around for awhile, and see what happens. Hope this helps!

Dec 14, 2010 | 2006 Dodge Ram 1500

1 Answer

I have a 2006 dodge ram 1500 4x4 with a 5.7 hemi. engine light came on, i got 2 codes P1521 and P0456 what do these mean?


P1521 =Manf control veh spd, idle control, auxillary inputs

P0456=Emission control system eak, very small


???Good Luck

May 25, 2010 | 2005 Chrysler 300

3 Answers

Emissions code p0456 dodge ram 1500????? and how much 52,354 miles. can I just reset code? and how Thanks and God Bless All


the code your getting is for the evaporator emissions system,look for any vacuum hose or hose that's coming from the canister tank,and check to see if its bad or has rotted and fell off,or is closed off,any one of those hoses will cause that to happen,it may just be one that got knocked loose by accident,check any hose that has to do with vacuum or the emission system,a sensor is what caused that code to show up,so it did its job,good luck on finding it,you,ll know the problem when you come to it.

Jan 21, 2010 | 2006 Dodge Ram 1500

1 Answer

I have an 03 Ram 1500, engine light is on, I had


p0440 - Evap. system performance (this could be something as simple as not turning the gas cap several times after you fill up.

p0456 - Evap leak monitor Small leak detected. - Could be related to the previous code.

p2106 - Throttle Actuator Control System - Forced limited power : This one you might have noticed the vehicle running rough, overdrive not working properly and cruise control will not set.

p2175 - Throttle Actuator Control System - Low airflow detected.

What you might want to try first is have the codes cleared which most auto parts stores offer this for nothing (unless you have a programmer then you can do it yourself). Pour in some fuel injector cleaner into your gas, put a new air filter on. And when you fill up your gas tank, crank the cap several times when you put it back on.
See if the codes come back on after that.

Nov 21, 2009 | 2004 Dodge Ram 1500

2 Answers

2006 dodge ram hemi with gas cap light on and smell of gas after


my dealer says you shouldnt use aftermarket gas caps. but i am having the same problem...did you get any results?

Mar 24, 2009 | 2004 Dodge Ram 1500

5 Answers

Diagnostic code P0456 for 2003 Dodge Ram 1500 5.7


P0456 = EVAP Emissions Control System Leak Very Small

Is the gas cap on tight or is the seal damaged? If it needs replacement, get it from the dealer.

Aug 22, 2008 | 2004 Dodge Ram 1500

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

53 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

75817 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...