Question about 2010 Chevrolet Impala LT

Open Question

2010 Impala keeps showing large and small evaporative leak

Changed the gas cap did not solve the problem when checked again shows large and small leak.

Posted by Anonymous on

Ad

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

Ad
  • 16 Answers

SOURCE: Low coolant light keeps coming on

head gasket problem you need to get it to a good garage before you ruin the motor

Posted on Mar 14, 2009

Ad
  • 4 Answers

SOURCE: Have a 2003 Chevy Impala. Check engine light

Bank 1 is the rear O2 sensor, but experience says to change both. The front one is right behind the engine in the middle of the engine compartment. The rear O2 sensor is on the top of the exhaust pipe, just behind the catalytic converter. But the same code that shows it is the O2 sensor (which is P0420), is the same code for the catalytic converter, or a vacuum leak. Make sure if you do change the catalytic converter, ensure that the new one is OBD-2 compliant. And the vacuum leak could possibly come from the manifold gasket. Let me know what the problem was!

Posted on Mar 26, 2009

Tech jk
  • 102 Answers

SOURCE: on a 2006 chevy impala it tells you to tighten the gas cap

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.

Posted on May 08, 2009

  • 7353 Answers

SOURCE: 06 chevy impala v6 3.9 liter engine. Check engine

there is a large evaporative leak. keep away form ottozoo, they dont have the brain power to actually diagnose a light bulb., their job is to sell parts., if they sell you the wrong parts tough.Take it to a qualified repair shop that does a lot of GM work or the dealer.

Posted on Sep 25, 2009

  • 2 Answers

SOURCE: Received P0455 Evap System Large Leak Detected - 2004 Cavalier

your problem is probably a vacuum hose that goes from the purge valve to the gas tank (crack or broken hose). There should be two of these check both. A broken vacuum line will make the purge valve make a clicking noise that can be mistaken for noisy engine valves.

Posted on Apr 28, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Hyaunda 2010 check engine light code P0442


code p0442 has 2 possible fault areas

evaporative emission (EVAP) system --small leak detected===causes --hose connection/s--intake leak--EVAP canister--EVAP canister purge valve
and the second possible

evaporative emission system--large leak detected (fuel cap loose/off)===causes--mechanical fault---hose connection/s---EVAP pressure sensor

May 16, 2014 | 2002 Subaru Impreza

1 Answer

Why is my 2010 ford fusion is throwing code po455. no gas cap required


P0455 is Evaporative Emissions System Leak Detected (Large) and means that there is a large leak in the system probably with one of the EVAP hoses near the fuel tank or EVAP canister or maybe even A leaky purge valve.

May 06, 2014 | Ford Fusion Cars & Trucks

2 Answers

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

May 03, 2012 | 2010 Chevrolet Impala

1 Answer

I have code PO442 showing on my sonata 2001-140,000miles, Ihave changed the gas cap, all the hoses to the evap emissions but still no joy. I have taken it to Hyundai for a smoke test and they say there is...


code p 442 refers to Evaporative emission (EVAP) system--small leak detected ====causes -- hose connection/s intake leak--EVAP canister---EVAP canister purge valve

it also refers to large leak detected ( fuel cap loose or missing====causes ---mechanical fault---hose connection---EVAP pressure sensor
nothing to do with the cat converter

Sep 11, 2017 | Hyundai Sonata Cars & Trucks

2 Answers

The check engine light is on withcode p0442 on my 2003 dodge dakoda. what does this mean


this code# po442 is avery small leak in the evaporative emission control system. First check that the gas cap is on tight, past the clicking sound. this uaually solves the problem. if you need more help get back to me and we'll go from there. Please rate my fix as i strive to be the best Thanks Ray

Aug 08, 2010 | 2003 Dodge Dakota Club Cab

1 Answer

Po442 is showing wrong with my truck, it sau emission control module small leak and it also shows large leak


Evaporative system is one of the hardest to diagnose. Most common issue would be gas cap, but could be a vacuum line also. Other than that requires extensive diagnosis with special equipment. You can try replacing the gas cap, clear the code (disconnect the battery) and then drive several days for the self test to rerun and see if the light comes back on again

Jan 15, 2010 | 2001 Dodge Ram 1500 Truck 2WD

1 Answer

06 chevy impala v6 3.9 liter engine. Check engine


there is a large evaporative leak. keep away form ottozoo, they dont have the brain power to actually diagnose a light bulb., their job is to sell parts., if they sell you the wrong parts tough.Take it to a qualified repair shop that does a lot of GM work or the dealer.

Sep 25, 2009 | 2006 Chevrolet Impala

3 Answers

2000 cavalier check engine light code po440


P0440 - Evaporative Emission (EVAP) System


evaporative emission (EVAP) system has a large leak.
Check the gas cap or vent valve. these are the most common problems.


The Powertrain Control Module (PCM) at different times performs various tests on the EVAP system. OBD II Enhanced EVAP systems are in place to keep fuel tank vapors from venting into the atmosphere, and instead purges them into the engine to be burned. Regular pressure tests are conducted by the PCM to monitor the sealed system for leaks. The PCM monitors the EVAP system pressure by watching the Fuel tank pressure sensor (FTP). When the sensor indicates a small leak in the EVAP system, this code is set.


Here are some additional causes.

* A small leak in any of the EVAP hoses or fuel tank hoses
* A small leak in the purge valve or vent valve
* The EVAP Canister may be leaking

Jun 06, 2009 | 2003 Chevrolet Cavalier

3 Answers

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.

Mar 28, 2009 | 2006 Chevrolet Impala

Not finding what you are looking for?
2010 Chevrolet Impala LT Logo

Related Topics:

20 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76848 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides

Loading...