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Anonymous Posted on Jun 18, 2014

How to clear the code p0455 on chevy impala

Cant figure how to clear the p0455 code? out

5 Related Answers

Anonymous

  • 1 Answer
  • Posted on Jan 30, 2009

SOURCE: Drain coolant in 2003 Chevy Impala

hey, i just flushed out my coolant system a month ago. it is located (if you face the front of the car) on the bottom right. it will drain straight down to the ground and you have to unscrew it from the back of the radiator. it is covered by a pastic piece and sits right on the radiator frame. hope that helps some!!

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Anonymous

  • 1608 Answers
  • Posted on Dec 01, 2009

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.

Anonymous

  • 1 Answer
  • Posted on Feb 04, 2010

SOURCE: 2003 Chevy Impala transmission

my 03 impala only jerks hard when the engine is cold or slightly cold. when its warm its fine. i never had it looked at before.

Anonymous

  • 3640 Answers
  • Posted on May 14, 2011

SOURCE: clearing code P0455 2005 Chevy Malibu from loose

drive car at least 1 day to see if light goes out. if not, go to any auto parts store and they will turn light off with a OBD-II scanner. auto-zone etc. if it comes back on its another problem. another leak or damaged piece in evap system. check evap system if need be. have a good day ! p0455 evap leak ( large ).

emissionwiz

Marvin

  • 85242 Answers
  • Posted on Oct 17, 2012

SOURCE: how to fix a p0455 code on a 2008 chevy impala?

There is no magic bullet fix for this, you can have a leak you can't see or a defective fuel tank pressure sensor or a defective vacuum line, the list goes on.

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1helpful
1answer

What is the correct way to reset the ecm on 2007 chevy impala after codes are cleared

The correct way is probably take to a dealer.
here is a link from impala forum which has the same thought as you, reset ecm.
https://www.impalaforums.com/chevy-impala-8th-gen-discussion/376818-how-to-reset-ecm-and-tcm-in-2012-impala.html

If you clear code and the problem continues it will come back if the car truly has a problem.
0helpful
1answer

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

EVAP Code P0449 - YouTube

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Mar 13, 2013 - Uploaded by realfixesrealfast
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0helpful
1answer

I have 3 codes on my 08 impala; P0455 P0521 P1174

The 455 and 1174 are probably related to the same issue---emissions and air to fuel mixture which could be a purge valve for the evap. system and the 521 is usually a bad oil pressure sensor.
0helpful
1answer

Code p0455 2006 chevy impala

That code is for a large EVAP leak. The first thing I would suspect is a bad EVAP vent solenoid. You should be able to find it up under the car behind the drivers rear wheel. Remove it from the vehicle. use jumper wires to supply power and ground to the solenoid. You should hear a definite click and you should not be able to blow through it. If you do not hear a click and you can blow through it replace it.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

1helpful
1answer

How to fix a p0455 code on a 2008 chevy impala?

There is no magic bullet fix for this, you can have a leak you can't see or a defective fuel tank pressure sensor or a defective vacuum line, the list goes on.
3helpful
1answer

Po455 trouble code

It is a leak in the fuel evap system. This can be caused by a loose gas cap. If the cap is not loose then there is a leak in the system. That model Impala is known for the return solenoid going bad. It is located by the gas filler. They run about $40. I have included a link from a forum that may help you if you are mechanically inclined.
http://www.impalaforums.com/chevy-impala-8th-gen-discussion/121840-2006-impala-3lt-p0455-large-evap-leak.html
0helpful
2answers

I have a 2010 Chevy impala. Reduced engine power and check engine light also comes on but won't stay on. Codes are P2138 P2122 P0455

Hi Rosalee_IM,
The codes your vehicle is storing are for low voltage from your accelerator pedal position sensor and a gross evaporative emission leak. The code P2122 and P2138 are directing you to test the accelerator pedal position circuit and/ or sensor. This is the cause of the reduced power concern you are feeling.The P0455 is telling you there is a large leak in the evaporative emission system. The most common cause for this code is a loose or incorrectly installed gas cap.I hope this helps clarify the concerns you are experiencing. If you'd like more information on how to trouble shoot the problems,drop me a line. Please include the model Impala you have,(LS,LT or LTZ) and the engine size. I will do my best to get back to you as soon as possible.Thanks, Chuck
0helpful
1answer

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.
0helpful
1answer

2006 Chevy Impala - Can't Clear Replace Battery in Remote Alarm

There is a fault code present and you will have to take it to a dealership for them to use a Tech II and read the code.
6helpful
3answers

On a 2006 chevy impala it tells you to tighten the gas cap ,then when you do, we shut the car off. Then check engine light comes on. Where is the sensor located.

There is no sensor for a loose gas cap. What is happening is that the evaporative emission system is sensing a "Large Leak". Usually code p0455. The computer sees this as the most probable cause is a loose gas cap depending on several factors it looks at. You would need to clear the code(s) and see if that was the problem. If the light comes back on, then you have a problem in the system that will not let it seal. Possible solenoid problem, leaking hose / line, etc.
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