Question about 2005 Dodge Grand Caravan

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Got scan problem numbr P0442 Check engine is

Got scan problem numbr P0442 Check engine is on......

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  • Dodge Master
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Po442 is an evap leak, this is the fumes from the gas tank, check vacuum lines from engine compartment for any cracks or splits also make sure gas cap is tight and gasket is good, most of the time this is caused from a bad fuel cap, i would replace the gas cap make sure its on tight then drive for a week if the light goes out then problem solved if light is still on after a week of driving then there a leak is the system. hope this helps.

Posted on Aug 30, 2010

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Posted on Jan 02, 2017

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I just had a scan done on my 2000 grand am 2.4 engine it had a code po442 where is this located on the car and I heard gas tank needs dropped to replace


I heard gas tank needs dropped to replace ???? You should never listen to what you heard from someone who has no clue ! P0442 is a small leak DTC P0442 Evaporative Emission (EVAP) System Small Leak Detected. You really should take it to a qualified repair shop .

EVAP Leaks P0442 and P0455

The evaporative emission system is tested by applying vacuum to the EVAP system and monitoring for a vacuum decay. The PCM monitors the vacuum level through the fuel tank pressure sensor signal. At an appropriate time, the EVAP canister purge solenoid valve and the EVAP vent solenoid are turned on, allowing the engine to draw a small vacuum on the entire evaporative emission system. Once the desired vacuum level has been achieved, the EVAP canister purge solenoid valve turns off, sealing the system. A small leak in the system will cause DTC P0442 to set.

Wells EVAP Training with Sgt Tech P0440 P0441 P0442 etc

Apr 24, 2017 | 2004 Pontiac Grand Am

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Check engine is staying, troubleshooting # po442


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 Defective vent valve Defective purge valve Defective leak detection pump

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 (recommend an OEM not aftermarket part), or Inspect the EVAP system for cuts/holes in tubes/hoses More advanced troubleshooting steps include: Using an advanced scan tool, perform an EVAP leak test Verify operation of the EVAP purge solenoid / valve Perform a smoke test to see where the leak is Generally there are vehicle and model specific procedures for proper diagnosis of this DTC.

Read more at: http://www.obd-codes.com/p0442

Oct 02, 2015 | Cars & Trucks

1 Answer

P0442


if the check engine light is coming on i would take it to a shop and let them put it on a computer that would give the correct problem. A simple code scan does not work most of the time and the reason for that is if one sensor is bad it can make scan read other sensors bad. hard to start could be sensor or simply a good tuneup is in order. easyest solution is take it to the shop. in the long run it will cost less.

Aug 12, 2012 | Cars & Trucks

2 Answers

P O 242 6.0 engine


There is no p0242.Are you sure it is not p0442.This would be the evaporative emission system.Has to do with the emissions.You need a scan tool and a smoke machine to test for evap.leaks.Usually the vent solenoid.This in the area of the spare tire.This is the most common problem that I have seen on the Silverados.The only other thing is the gas cap.Hope this helps.Good luck.

Feb 17, 2012 | 2001 Chevrolet Silverado 1500

1 Answer

My check engine light is on so I ran a scan with my personal car code reader & got code p0496. I called chevrolet & they told me its p0442. Which is correct?


p0496 is evap emission is high purge flow fault, p0442 is emission control system( small leak) the meaning is about the same. check for a bad gas cap first. sometimes this will set a check engine light. loosen cap and see if this is the problem. if it is. usually if you turn cap only a little the light will go out. but if bad enough just change cap.

Aug 13, 2010 | Chevrolet Classic Cars & Trucks

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Engine code p0442


small EVAP leak

you'll need a smoke machine, scan tool and lots of time

real bear to find but start with the obvious under the vehicle lines that look like they may have suffered damage from rocks etc.

Mar 17, 2010 | 2000 Ford Ranger SuperCab

1 Answer

Jetta 2.0 2000


16826/P0442/001090 - EVAP Emission Control Sys: Small Leak Possible Symptoms
  • Malfunction Indicator Light (MIL) active
Possible Causes
  • Evaporative Emission (EVAP) System leaking
Possible Solutions
  • Check Evaporative Emission (EVAP) System Sealing
    • Check Fuel Cap

May 22, 2009 | 1999 Volkswagen Jetta

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