Skip the auto shop - Our mechanics make house calls

Q: Carbon canister making a loud hissing noise.

asked by on

check engine light was on ( bank 1 system too lean p0171 )and someone suggest to change the carbon canister and now it's making a loud hissing noise. The old one made a low level hissing noise. How can I fix this? The canister is OEM purchased new.

Thx Shawn

My car has an automatic transmission.

Hi there. The loud hissing noise could be caused by a split vacuum hose or a loose hose. Follow the hiss to make sure it is the canister and not a separate hose. The code stored for the Check Engine Light would not be affected by a leak at the canister because it would have leaked to bank 1 and bank 2 setting a code for each. I strongly suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. YourMechanic has several available technicians that can assist you with a Check Engine Light inspection and can conduct a diagnostic on the hissing noise so that this can be addressed appropriately.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
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

Get a quote

What others are asking

Q: Bad shifter cable. 2002 Lexus ES300

Hi there. When it comes to a vehicle getting in an accident and having issues with other components, this is a common problem that cannot be avoided at times. When the vehicle was looked at and quoted, the problem was...

Q: Check engine light, VSA On light, and EPS light all on while driving.

Car warning lights come on for numerous reasons. The Check Engine Light is the most common light and may be on for several possible reasons. The VSA light relates to the vehicle stability assist system which is like a traction...

Q: rattling noise when turning on a.c. then later stops making noise

Hello there, many faults will cause a rattling noise when the AC is turned on in your 1997 Lexus ES300. The most common would be the belt tensioner, idler pulley, AC clutch, AC compressor, or the belt itself. When the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...