Question about 2003 Chevrolet Blazer

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P0442 is the code that I need to know what it means/2003 chevy blazer

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A code P0442 most likely means one or more of the following has happened:


  • A loose or improperly affixed gas cap
  • A non-conforming gas cap (i.e. not factory/original brand)
  • A small leak/hole in a fuel vapor hose/tube
  • Other small leak in EVAP system
  • Faulty vent o-ring seal
With a P0442, 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

Posted on Mar 23, 2012

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Hello,
You should refer the following FIXYA site for the best answer to this question. How to fix diagnostic code p0442
Good Luck!
Rich Lilja

Posted on Jun 13, 2014

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motor1258
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Check for sticker in glove box. Bunch of numbers & letters, usually last line.(bottom line)

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SOURCE: stereo code for 1998 chevy blazer

Unfortunately, you have to pay for this information. Either from a dealer or a website. I'm giving you a site I had to use for the same problem. Follow the instructions on the front page for your 4-6 digit code you send them.
http://loc-code.com/

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how to check and replace it.

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Evaporative Emission control leak it is a small leak.

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SOURCE: need to know were the

The fuel pump is located inside the gas tank. you will need to remove the tank, then loosen the lock ring on top of tank by turning it counter-clock-wise and pulling the entire assembly out of the tank. Replace the pump assembly and re-assemble in reverse order. If you have trouble turning the locking ring you can tap it on and off with a hammer and screwdriver.

Posted on Mar 16, 2011

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