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P0441,P0455,p0456 in scion tc 2008 - Cars & Trucks

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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

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Posted on Jan 02, 2017

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SOURCE: CODES,P0442,P0455,P0456,P1684

P0442, P0455 AND P0456 are all evaporative leak monitor test failures (small, medium and large leaks). These codes appear anytime the integrity of the air space above the fuel or the lines to/from the vapor canister or purge valve. If there is no damage to the canister, check the lines that run under the van from the fuel tank and canister to the purge valve (under the hood). Also, check to make sure that the hoses are not split or disconnected where they connect to the purge valve. The P1684 is abit more confusing. This is not a valid DTC for your vehicle. It's possible the scanner the shop you went to is an OTC scanner that is reporting a false code. It's also possible they wrote it down incorrectly. The closest thing that makes any sense is a P1486 which would indicate a pinched hose in the same monitor system as the other 3 codes. Best of luck!

Posted on Jun 20, 2008

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  • 140 Answers

SOURCE: How do I reset the check engine light for a 2006 scion tc?

YOU CAN GO TO ANY ADVANDED AUTO PARTS AND THEY CAN HOOK UP A OBD2 SCANNER, WE THEY DO ASK THEM TO RESET THE LIGHT FOR YOU.. THIS IS A FREE SERVICE TO THE PUBLIC..GOOD LUCK KEITH..

Posted on Mar 14, 2009

ZJLimited
  • 17970 Answers

SOURCE: What is the diagnostic codes P 0700 P1684 p0442

P0700: EATX Controller DTC present
P1684: Battery was desconnected
P0442: EVAP leak monitor medium (.040). Leak detected.
P0455:
EVAP leak monitor large. Leak detected.
P0456: EVAP leak monitor small (.020). Leak detected.

I suggest check the lines and flow it down to the ldp (leak detection pump) that is just behind the steering gear under the van It has a wire connector and 2 large EVAP hoses. look for any split or crack then follow the lines back to the tank. Even a small crack is a leak.

Hope helped with this. Remember rated this help. Good luck.


Posted on Nov 24, 2009

  • 373 Answers

SOURCE: troubleshoot codes

po442 evap system small leak po455 evap system large leak po456 evap system very small leak. the evap system is located under the driverside of van. from all indication you have a hole in a line or a bad connection on one of the lines. inspect and repair.

Posted on Apr 23, 2010

SOURCE: I lost the owner's manual

It sounds like the tire pressure monitor warning light. Does the light look like this?
c64c8b9.jpgCheck and adjust the pressure in all the tires (most Toyotas even monitor the spare tire pressure so check that also). If you find one tire with significantly lower air pressure then the rest bring the car to a repair shop to have them find and repair the leak. Once the air in the tires are correct the light will go off.

Posted on Jul 31, 2010

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2006 Scion TC code read code PO441-PO455 What does this mean and what do I check?


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
P0441 is Evap Emission Incorrect Purge Flow;

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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

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What kind of oil does my 08 scion tc take?


there should be a label under the hood telling you what kind of oil you need if not stop by your local Toyota or Scion my wife 2005 Scion XB use 5-30- Synthic wish you the best of luck Michigan Man

Oct 24, 2010 | 2008 Scion Tc

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