Question about 2000 Hyundai Accent

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My code for my 2000 hyundai accent is: P0442 Evap system small leak im sure that the gas cap is on all the way.

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May have a leaky vacuum line somewhere. The rubber seal on the gas cap could be cracked or worn out. they are easily replaced.

Posted on Oct 02, 2010

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Diagnostic code p0442


CODE PO442 EVAP SYSTEM SMALL LEAK DETECTED 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 Read more at: http://www.obd-codes.com/p0442 Copyright OBD-Codes.com

May 21, 2013 | Cars & Trucks

2 Answers

2005 Hyundai Elantra P0442 code?


The code means the computer has tried to vent the gas tank and has found a small leak in the vent system.
You may need to research the code to get the testing procedure for your model and year.

Oct 05, 2012 | 2005 Hyundai Elantra

1 Answer

2000 ford explorer p0442


Hi there:
P0442 - Evaporative Emission Control System Leak Detected (small leak)
This indicates a fuel vapor leak in the EVAP control system. It means a very small leak has been detected. In fact, the leak can be from a hole as small as 0.04" in diameter. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system.

Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

You likely won't notice any drivability problems.

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

Possible Solutions: 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

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Jul 15, 2012 | 2002 Mazda Protege

1 Answer

Fault code "P0442 vacuum small


Here are the possible causes, there is no 100% for sure cause.

Possible causes - Missing or loose fuel cap (most common)
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking

Apr 26, 2011 | Hyundai Accent Cars & Trucks

1 Answer

Problem p0442


P0442 Means you have a leak in your EVAP system.
The EVAP system prevents gas vapors from entering the air .
This code can be set by a leak in the lines os a clogged charcoal canister.
Most common reason is If you did not put your gas cap on all the way.
Hope this helps
Leave feedback please
thank you FixYa

Feb 01, 2011 | 2002 Hyundai Accent

1 Answer

My CarMD Report shows a P0442 Error Code on my 2002 Hyundai Accent GL My gas cap is on tight but, not sure about the seal. I have 8 possible causes from the CarMD Report. What do you...


Ouch. thats a tough one. Your fault code is for a small EVAP leak which is notoriously very hard to find. I would follow the most likely causes from the CarMD report. They are generally very accurate and based on input from technicians like myself. Remove your gas cap and inspect the seal around the cap. A leak as small as 0.02 inches will trigger the code you are getting. Literally some dust or debris could cause this. I would inspect the seal for cuts/tears and clean it. Replace the gas cap is the cheapest thing to try first and the likely culprit here. Check CarMD site for recalls and TSB's regarding EVAP leak as well. Good luck.

Nov 17, 2010 | Hyundai Accent Cars & Trucks

2 Answers

2000 chevy 5.7 evap code po442 what does this mean and how do I get rid if it. thanks any info will be helpful


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

Jan 25, 2010 | 2000 Chevrolet 3500

3 Answers

I have 2000 chevy impala 3.4 engine i have check engine light with this code p0442 took it it to auto zone they said it was a small leak dont know where to start


This indicates a fuel vapor leak in the EVAP control system. It means a very small leak has been detected. In fact, the leak can be from a hole as small as 0.04" in diameter. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.
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

Dec 31, 2009 | Chevrolet Impala Cars & Trucks

1 Answer

Engine code showing po442


P0442 = Evap. Emission Ctrl. System - Small Leak detected (1.0 mm) Most times this is merely a fuel cap which has not been completely tightened. However, the EVAP (Evaporative Emissions System) is quite complex and there are many possible causes other than a loose fuel cap. If you have an OBDII scanner, erase the code and inspect your fuel cap... make sure you 'click' the cap at least three times when you reinstall it. If the code returns, best solution is take it to a Hyundai Service Center (dealership), pay the diagnostic fee. They will tell you EXACTLY what the problem is and what's needed to fix it (parts, labor, tax, time-frame, etc.).

Jun 06, 2009 | 2000 Hyundai Accent

2 Answers

Error code p0442


EVAP Emission Control System - Small Leak Detected (1.0 mm). This code can be set when 1. fuel filler cap is not completely tight, 2. when various hoses get punctured or the canister close valve does not seal completely, 3. there is an actual leak in the charcoal canister, fuel tank, or other EVAP system component, 4. if any one of these components are malfunction (a), fuel tank pressure sensor, (b) purge control solenoid valve, (c) canister close valve, or (d) fuel cap. An engine vacuum leak would not set this code.
Solution: Take the vehicle to a Hyundai Dealership for proper diagnosis/repair.

May 23, 2009 | 2001 Hyundai Santa Fe

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