What causes a GMC Yukon to have a p0446 code?

It’s really easy to replace. There are a few clips that you need to find and remove. Evap System Hose – The hose that carries the fuel vapor from the fuel tank to the intake manifold can begin to leak. This will cause the P0446 code. Look for either a tear or hole in it.

What is the trouble code on my GMC Yukon?

P0446 GMC Yukon. August 13, 2018. One of the most common trouble codes with the GMC Yukon is the P0446 code. This trouble code references a number that is given to you when you plug your Yukon into a OBDII scanner. P0446 Indicates that there is a fault in the evaporative emission control system.

What does p0446 mean on a Chevy Blazer?

P0446 Indicates that there is a fault in the evaporative emission control system. It often appears with other codes, such as P0420, P0441, or P0440. P0446 is normally not an immediate threat to the drive-ability of your vehicle. Certainly anytime the service engine soon light is on, it’s good to deal with it as soon as possible though.

Why does my GMC Yukon have a gas smell?

P0446 may also cause a slight gas smell. This is due to it being related to the system that deals with fuel vapors. P0446 is a universal OBDII trouble code. This means that regardless of which make or model of vehicle, the code will mean the same thing (Yukon or not).

What does the trouble code p0446 mean?

A trouble code P0446: Evaporative Control System Vent Valve Performance usually points to a blocked EVAP vent solenoid that isn’t able to draw fresh air into the EVAP carbon canister. In this tutorial I’ll explain what this trouble code means. I’ll also talk about some of the tests you can perform to find its cause.

How is the p0446 GMC evaporative emission vent system performance?

The Powertrain Control Module (PCM) monitors the performance of the Evaporative Emission (EVAP) system by applying a predetermined level of vacuum to the EVAPsystem then monitors the vacuum decay rate. P0446 GMC More Information Need more information on how to fix the P0446 GMC code? Get Access to Factory Service Manuals Need more help?

How much does it cost to diagnose p0446 GMC code?

Labor: 1.0 The cost of diagnosing the P0446 GMC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour. When is the P0446 GMC code detected?

How much does it cost to diagnose a p0446 GMC code?

The cost of diagnosing the P0446 GMC code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

What does p0446 mean on Check Engine light?

However, as with all check engine light diagnostic trouble codes, you should repair it as soon as possible to return the vehicle to normal operation. Scan your vehicle to verify P0446 is the only code present. If other codes are present regarding fuel pressure or the fuel system, repair and diagnose those first.