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Check engine has a code p0450 on my 2004 Volvo 1.9

Posted by Anonymous on


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 3854 Answers

SOURCE: check engine light code PO442

You likely won't notice any drivability problems. P0442 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.

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.

Good luck and hope this helps

Posted on May 07, 2009

  • 216 Answers

SOURCE: check engine codes

1-2-3* Signal missing to/from coolant temp. sensor Wiring fault to or in ECT sensor;grounds corroded on intake manifold or engine Difficult to start engine when cold Same Same

Posted on Jun 22, 2009

  • 1386 Answers

SOURCE: 2005 volvo the check engine 2005 volvo the check

Hello and welcome to FixYa!
As a first course of action, I strongly suggest that you remove the positive battery connector and let it sit for atleast 10mins. or more before reconnecting it. This will reset the system and can get rid of the dash lights.
If the problem still persists, I suggest that you take it in to a reputable shop to have it resetted manually.
Hope this helps and thank you for using FixYa! Have a good one!

Posted on Aug 07, 2011

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