How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Ron Z. Your Own Question
Ron Z.
Ron Z., - Kia Tech -
Category: Kia
Satisfied Customers: 17778
Experience:  18+yrs experience. State Inspector & Kia Diagnostics/Repair
Type Your Kia Question Here...
Ron Z. is online now
A new question is answered every 9 seconds

Kia Sorento EX: Hi, on a 2005 kia Sorrento KNDJD733255480494,

This answer was rated:

Hi, on a 2005 kia Sorrento KNDJD733255480494, I've retrieved two DTCs related to EVAP: P0442 and P0456. Is there any common procedure related to these codes?
Hello! Welcome to the site! Thanks for coming! I'm Ron Z. I'm here to provide as much information and insight as I can, to best answer your question.

The P04423 and P0456 are both directly related. One is "very small" EVAP leak and the other is "small" EVAP leak. Unfortunately, these are very "general" codes simply stating there is a leak in the system, so to give a 1-answer, "it's this..." kind of answer would be impossible. Best, XXXXX XXXXX way to begin here is to have the EVAP System "smoked". This is where a machine forces smoke through the EVAP system and any leaks will reveal themselves with a stream of smoke. Like I say, this is the most efficient way to find a leak, as trying to find a leak "by eye" will be virtually impossible. If the smoke test proves no leaks, next inspect the fuel cap. Check the underside of the fuel cap for any cracks or signs of defects that may keep the cap from sealing correctly. If there are any doubts about the inspection of the cap, replace it. Keep in mind, you will need a cap that meets OE Specs. Those "universal" or "locking" fuel caps sold at after market parts stores do not meet OE specs, and will not seal the system correctly. Check the top of the fuel filler neck for any signs of damage or debris. Check under the vehicle, around the rear areas of the vehicle, looking for any vacuum lines that have dry-rot cracks, holes or loose/missing connections. If the fuel cap is known good, then a very common fail item on these vehicles that "can" set these codes, is a faulty Pruge Control Solenoid Valve. The Solenoid is located on the top, driver's side of the engine. Inspect the electrical connector and wire harness for any loose, broken or damaged wires. If the visual inspection checks ok, suspect a faulty PCSV.

Please remember the website WILL NOT automatically compensate me with a part of your deposit or from your subscription WITHOUT YOUR RATING! Please use the Rating System and *Rate My Service* if the information/advice I supplied has helped you. If you have any more questions, use the "Reply" tab – I'm always happy to answer follow-up questions! Follow-ups are always FREE! Even after you rate! Thank-you!

Ron Z. and other Kia Specialists are ready to help you

Related Kia Questions