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Check engine code P0456 - S80 Volvo Cars & Trucks

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

hotrodtod38
  • 141 Answers

SOURCE: code P0456,P0455, &P0442

hello po442 ,po455,po456 is leak detected possible, check the gas cap , basicaly you have a leak that is larger than 0.020' and smaller than 0.040' in the gas evaporative system use your nose to find this one thanks

Posted on Feb 14, 2009

  • 4088 Answers

SOURCE: codes

The first two were not listed in the file that I have, the third has to do with evaporative emission control has a small leak. The first two seem to be other codes having to do with the same area. Check the hoses and fittings at the fuel tank area for leaking or damage for the vent system. Check the fuel entry to tank hose and fittings. Locate (underneath the body) and check the charcoal canister for cracked case, loose or damaged fittings. Clear the light with the scanner and see if other codes show up. Are there any obvious problems other than fuel vapor leaks?

Posted on Aug 22, 2009

  • 439 Answers

SOURCE: my check engine light came on 2003 dodge dakota

This code is normally caused by a loose gas cap or a bad EGR valve. It is the code for the evap system on your truck. You can go to autozone and they will clear the code for you if you can not do it yourself. You may need to replace the gas cap and or the EGR valve if the code comes back up, these are normally one time things due to the cap not being fully tightened.

Posted on Nov 04, 2009

  • 495 Answers

SOURCE: 2003 nissan murano with check engine light codes

P0420 is Catalyst System Efficiency Below Threshold - Bank 1
and
P0456 is EVAP Control System Very Small Leak (Negative Pressure Check)

Posted on Nov 22, 2009

motor1258
  • 6674 Answers

SOURCE: check engine light on fault code p0456

Small leak in Evaporative emission system. Could be as simple as a bad seal at gas cap, or maybe wasn't put back on tight,especially if you noticed it shortly after getting gas. Otherwise check all vacuum lines for snug connections, and examine for cracks as well.

Posted on Apr 09, 2010

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DTC P0456 trouble code which refers to Evaporative Emissions System, check HERE additional details to test.

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Code p0456


P0456 DODGE - EVAP System Small Leak
As you see form the list there is not a single problem that causes this code to set.
Possible causes- Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking

Read more: http://engine-codes.com/p0456_dodge.html#ixzz1xQr2MVRf

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

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