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Code p0455 on chevy trailblazer - TrailBlazer Chevrolet Cars & Trucks

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Posted on Jan 02, 2017

  • 9 Answers

SOURCE: Code Scan Reads P0455 Evap. Emissions Leak, Large

large leek is usually the gas cap. just had the same problem

Posted on Jul 16, 2009

  • 1608 Answers

SOURCE: 2006 5.3ltr chevy silverado z71 p0455 andp0449

These codes are for the evaporative emission system.The 455 is the vent solenoid.The 455 is a large leak in the evap.system.The vent solenoid I would replace because they go bad and will not work because they are under the vehicle in the rear of the truck.There is a bulletin for these and the vent valve is installed in another spot.The number for the bulletin is 02-06-04-037E.You should also look for a broken or loose hose or pipe that might have came off.Specially if you ran over something.If none found it could just be the vent solenoid stuck in the venting position.Good luck.

Posted on Dec 01, 2009

SOURCE: 04 trailblazer cel has a

A large or gross leak in the EVAP System is not always a gas cap. Have to smoke test the system with an EVAP Smoke Machine & use a scan tool to test & actuate system components

Posted on Jun 30, 2011

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P0014 Diagnostic code, already replaced camshaft actuator & oil twice


code p0014 - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

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On my Trailblazer I have a code P0014 . this says Camshaft Position Actuator B ... If the desired and actual cam phase angle error exceeds its ... This diagnostic procedure supports the following DTC: ... replace the camshaft actuator solenoid, change the engine oil and filter, ... 2004 Chevy TrailBlazer LT P0014 - Camshaft Position Actuator Solenoid "Relearn"
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Tech Code "dtc P0014" 2003 Trailblazer - posted in Chevy ... it had been serviced before for the same thing in 2003 or 2004! ... replace the camshaft actuator solenoid, change the engine oil and .... The extended war. co. prob. would not be to happy since they already fixed the sensor once or twice already.

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1 Answer

What are the probable causes of DTC P0449?


P0449 - OBD-Codes.com

www.obd-codes.com/p0449
Detailed information on diagnosing and repairing a P0449 DTC code which refers ...P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit ... OBD-IITrouble Code Technical Description ... 2004 Chevrolet Tahoe 4.8L p0449

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1 Answer

I have a 2009 chevy impala. i have codes p2138, p0455 and p0442. what are these codes and how do I get rid of them?


Same 3 codes , p0455, p0442, & p2138 on my 2009 Chevy Impala and brought the car to a General Motor or Buick Dealer Service Department to replace vent solenoid or solenoid fuel tank evaporator control . Also replaced gas pedal position sensor.

Feb 18, 2012 | Chevrolet Cars & Trucks

1 Answer

I got a '06 Trailblazer, LT series and L6 engine. I got the check engine ON with P0449 and P0455 codes and the MIL On too. I change 2 solenoids (Purge and Vent), clear the codes with mine codes reader...


maybe aftermarket products--------disconnect batt and touch neg and pos cables together-after few minutes reattach and start car-----as long as its runnin fine-cause its just evap emmiss issue

Aug 09, 2011 | Chevrolet TrailBlazer Cars & Trucks

1 Answer

I have a 2003 Chevy silverado and I'm getting a p0455 code, what's does that mean


P0455 Evaporative Emission System Leak Detected (large leak)
The large leak detected could be in a hose or connector leading to the front under the hood evaporative canister.

It is not a loose gas cap, though.

Oct 08, 2010 | 2003 Chevrolet Silverado 1500

2 Answers

What is code 455 (Check engine soon light) on my 2004 Chevy Trailblazer, 4.2l


CODE PO455 - EVAP SYSTEM LARGE LEAK DETECTED CONDITIONS.POSSIBLE CAUSES FUEL CAP LOOSE MISSING,FUEL TANK FULLER NECK OR FUEL SENDING UNIT O - RING IS LEAKING, FUEL TANK PRESSURE SENSOR IS DAMAGED,FUEL TANK VAPOR LINES,CLOGGED,DAMAGED,OR DISCONNECTED,PURGE VALVE VAPOR LINE IS CLOGGED,DAMAGED,OR DISCONNECTED,PURGE SOLENOID IS NOT OPENING,IT MAY BE DAMAGED OR STICKING,VENT SOLENOID IS NOT CLOSING,MAY BE DAMAGED OR STICKING,PCM HAS FAILED.

Sep 20, 2010 | Chevrolet TrailBlazer Cars & Trucks

1 Answer

Check engine Light


The P0455 indicates you have a gross vacuum leak in the EVAP system.
Start at the engine and the vacuum purge valve, start checking the vacuum hoses and lines all the way back to the EVAP canister near the gas tank. Make sure no hose or lines are cracked / disconnected.
If all looks OK, let me know and we will proceed from there. Below is a schematic of the EVAP system for reference.
Good luck and let me know.
Regards,
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Feb 21, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

Gm dignostic code p0455


A little late but check your gas cap first.

http://www.p0455.com

Oct 15, 2008 | 2005 Chevrolet Blazer

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