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., - Nissan Tech -
Category: Nissan
Satisfied Customers: 17968
Experience:  18+yrs experience. State Inspector and Nissan Diagnostics
18617752
Type Your Nissan Question Here...
Ron Z. is online now
A new question is answered every 9 seconds

Cost to solve P0455 issue? Thank you

Customer Question

Cost to solve P0455 issue? Thank you
Submitted: 1 year ago.
Category: Nissan
Expert:  Ron Z. replied 1 year ago.

Unfortunately, the P0455 is a very "general" code that is simply stating there is a Large Leak somewhere in the EVAP (emissions control/recovery) System. So, there really is no 1-answer, "it's this..." type of answer here. I can tell you, that many times this code is set due to a loose, missing or faulty Fuel Cap (even putting fuel into the vehicle while it is running can set this code). SO first thing to do is to check 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. If the cap is good, then the next best course of action is to have the EVAP System "smoked". This is where a machine forces smoke through the system and the leak will reveal itself. The cost of this service varies from shop to shop with the average around $125 or so. If the smoke test proves no leaks, then there are items that will need to be tested and inspected and this will take time. So the major part of the solution here, if not a fuel cap or leak problem, will be Labor in finding the source of the problem. Labor rates vary from shop to shop, but a "fair" labor rate can by anywhere from $85-$125 per hour.

Expert:  Ron Z. replied 1 year ago.

..

Expert:  Ron Z. replied 1 year ago.

..

Related Nissan Questions