Question about 2010 Chevrolet Impala LT
Changed the gas cap did not solve the problem when checked again shows large and small leak.
Posted by Anonymous on
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.
Posted on Jan 02, 2017
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
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
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
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
Tips for a great answer:
May 16, 2014 | 2002 Subaru Impreza
May 06, 2014 | Ford Fusion Cars & Trucks
May 03, 2012 | 2010 Chevrolet Impala
Sep 11, 2017 | Hyundai Sonata Cars & Trucks
Aug 08, 2010 | 2003 Dodge Dakota Club Cab
Jan 15, 2010 | 2001 Dodge Ram 1500 Truck 2WD
Sep 25, 2009 | 2006 Chevrolet Impala
Jun 06, 2009 | 2003 Chevrolet Cavalier
Mar 28, 2009 | 2006 Chevrolet Impala
20 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: