What does the p0442 code on a GMC Sierra mean?

The EVAP system captures all fuel vapor from the fuel tank and sends them to the engine’s intake in order to be ignited in the normal combustion process. When the GMC Sierra’s computer detects that the EVAP systemic not holding any pressure, it will throw the P0442 code.

How much does it cost to repair a p0442 GMC?

The cost of diagnosing the P0442 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.

How to get diagnostic code for Toyota check engine light?

1 Connect scan tool to the 16-pin data link connector (DLC) located underneath the steering column. The connector may have a removable cover. 2 Turn the ignition on. 3 Follow scan tool manufacturer’s operating instructions to access the Diagnostic Trouble Codes (DTC’s).

Where is the trouble code on a GMC?

When retrieving GMC trouble codes with an OBD II scan tool, proceed as follows: 1. Connect scan tool to the 16-pin data link connector (DLC) located underneath the steering column. The connector may have a removable cover. 2. Turn the ignition on.

What causes the p0455 trouble code on a GMC Yukon?

There are many things that can cause the P0455 trouble code to trigger in your GMC Yukon. Here are the most common problems that will throw the code: Evap System Hose – The hose that carries the fuel vapor from the fuel tank to the intake manifold can begin to leak.

What is the trouble code on my GMC Yukon?

P0455 GMC Yukon. August 14, 2018. One of the most common trouble codes with the GMC Yukon is the P0455 code. This trouble code references a number that is given to you when you plug your Yukon into a OBDII scanner. P0455 Indicates that there is a large leak in the evaporative emission control system.

What does the p0442 code on a GMC mean?

Check for damaged components and look for broken, bent, pushed out, or corroded terminals. P0442 GMC Tech Notes. The P0442 code means that the control module has detected a small leak in the Evaporative Emission (EVAP). Loose fuel tank filler cap is the most common cause that triggers the P0442 code.

What does the EVAP code mean on a Yukon?

This means that regardless of which make or model of vehicle, the code will mean the same thing (Yukon or not). The code technically stands for: The EVAP system captures all fuel vapor from the fuel tank and sends them to the engines intake in order to be ignited in the normal combustion process.

What does trouble code p0446 on Chevy Silverado mean?

P0446 -What Does It Mean? (1999-2006 V8 Chevrolet Silverado, GMC Sierra) 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.

Why does my car have a p0443 trouble code?

Generally, a P0443 trouble code is caused a bad EVAP purge solenoid. But it can also be the result of a loose gas cap (one that wasn’t tightened enough after fueling the vehicle). If a loose gas cap is not the problem, then the following problems could be causing the P0443 trouble code:

What to do about a GMC p0442 EVAP leak?

With a P0442 GM, the most common repair is to: Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back. Otherwise, replace the gas cap, or Inspect the EVAP system for cuts/holes in tubes/hoses Sources: About.com

What does p0443 mean on a Chevy Silverado?

A P0443: EVAP System Purge Control Valve Circuit Malfunction tells you that your Silverado or Sierra’s fuel injection computer is activating the EVAP purge solenoid, but it isn’t responding. The EVAP purge solenoid is the one responsible for ‘purging’ the fuel vapors stored in the EVAP carbon canister.

How often does GMC Sierra set p0446 code?

I have a 2002 GMC Sierra with a 4.3L Vortec and 32K miles on it. It sets the P0446 code about every 3 months or so, pretty much like clock work. I have the Haynes manual bought from Auto Zone.

Are there any problems with the GM p0440 code?

Shops report problems with P0440, P0441, P0442, P0446 EVAP codes on GM vehicles. In order to troubleshoot any of the GM EVAP codes, it’s important to understand how the system works.

What causes a GMC p0443 EVAP canister purge valve?

To cause a P0443 GM, there has to be a problem with the purge control CIRCU GMIT, not necessarily the valve. Usually they are a unit housing the valve and the solenoid as an assembly. Or it could be comprised of a separate solenoid with vacuum lines to a purge valve.