Q: evap

asked by on June 11, 2016

I'm failing emissions for evap I have replaced evap purge valve and the vapor canister vent solenoid and my check engine light is still on for evap PO446

My car has 110000 miles.
My car has an automatic transmission.

Check Engine Light is on Inspection $79.99 - $89.99 Get a Quote

Restriction in the EVAP vent or purge hoses can also cause this code. A restricted EVAP canister will also set P0446. A smoke test can find restricted canister. I suggest having a mechanic come out and diagnose your Check Engine Light instead of replacing expensive parts that may not have failed.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

My car keeps shaking and vibrating when ever am at speed and when ever I apply my brake. What can cause that? 2008 Toyota Highlander

Claimed by David Gaines Wooten

Truck overheating but gage is not moving and no coolant flow thru clear line univesal tank

You may have a clogged radiator cap so coolant can go into overflow tank and back into radiator. Check cooling fan clutch to see if it is locking up as it should.

Loud knocking noise and engine is shaking.

Hi there. When passing a vehicle and turning off the overdrive at the same time with the pedal on the floor will be like trying to shift a vehicle without the clutch in a manual transmission driven vehicle. The rpm's...

Heater fan seems to surge

Hello. Your vehicle does use a vacuum operated heater control valve to allow hot coolant into the vehicle's heater core so that warm air can be generated. If you hear an opening and closing sound then it may be possible...

Coolant tank leak

Hello. If the coolant is leaking that fast then you should be able to see the vehicle leaving a puddle on the ground. If it is leaking onto the ground then it can be from a number of places. If...

I changed the throttle body on 2006 Chevy impala and it says service throttle body after resetting it.

Hi there. Check the resistance on the throttle position sensor on the throttle body and the throttle pedal position sensor on the gas pedal. There should be a resistance on the sensors. If one or both sensors have no resistance...

transmission shifting

If you are still getting the P0720 code after replacing the sensor then you should verify the wiring connection first to the sensor and also in between the sensor and ECM. Remove the sensor and turn the drive shaft. From...

Whats wrong , engine codes p0605,p0842,p0642, and p0401 thrown twice , light front end damage wothout airbag deployment

Hello, thank you for writing in. If the vehicle was in a wreck, the issues are likely independent from each other. One issue seems to be a powertrain control module electrical malfunction. This could be an issue with an input...

Do All States Require Emissions Testing?

The short answer is – yes, every state requires emission testing. However, there can be a lot of variation from state to state and even within a state. All states require annual or biennial tests, but in many states, testing...

Related articles

The 10 Most Important Things in Your Car Owner’s Manual
Your owner's manual tells you important information about your car, like how to set up your car, how to check car fluids, and correct tire pressure.
P2330 OBD-II Trouble Code: Ignition Coil K Primary Control Circuit Low
P2330 means that there is a problem with a primary or secondary circuit of ignition coil K. This is typically due to damaged or frayed wiring.
P2198 OBD-II Trouble Code: O2 Sensor Signal Stuck Rich Bank 2 Sensor 1
P2198 P2198 code definition O2 Sensor Signal Stuck Rich Bank 2 Sensor 1 What the P2198 code means This trouble code indicates that the upstream oxygen sensor on the second bank of the exhaust is sending a reference voltage to...