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What does the p0442 code on a GMC mean?

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 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

Why does my Chevy Silverado smell like gas?

If you’re old enough to have driven a carburetted vehicle the old stomp the gas and crank the engine method does actually help start the truck. Other than the difficulty in starting, the P0442 doesn’t seem to cause any other problems (at least in the short-term). You may also smell gas when driving.

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.

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

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.

What’s the trouble code on my Chevy Silverado?

One of the most common trouble codes with the Chevy Silverado is the P0442 code.

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Ruth Doyle