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Chris (aka- Moose)
Chris (aka- Moose), Mercury Technician
Category: Mercury
Satisfied Customers: 1912
Experience:  16 years experience with Mercury
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06 mercury mountaineer,4.8l, .set code excessive evap leak,

Customer Question

06 mercury mountaineer,4.8l , .set code excessive evap leak, smoke tested system at evap test port at left fender, smoke coming out the evap vent at the gas fill. pinched hose off at the purge solenoid. holds pressure. have a qlue whats wrong
Submitted: 3 months ago.
Category: Mercury
Expert:  Dan replied 3 months ago.

Hello my name is***** am an ASE Master Technician and I am glad to help you out with your question.

Expert:  Dan replied 3 months ago.

Do you have the code number?

Customer: replied 3 months ago.
po455
Customer: replied 3 months ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  Dan replied 3 months ago.

Possible causes:

  • After market EVAP hardware that does not conform to the required specifications
  • Disconnected or cracked fuel EVAP canister tube, EVAP canister purge outlet tube, or EVAP return tube
  • EVAP canister purge valve stuck closed
  • Damaged EVAP canister
  • Damaged or missing fuel filler cap
  • Insufficient fuel filler cap installation
  • Loose fuel vapor hose/tube connections to the EVAP system components
  • Blockages or restrictions in the fuel vapor hoses/tubes
  • Fuel vapor control valve tube assembly or fuel vapor vent valve assembly blocked
  • Canister vent (CV) solenoid stuck open
  • Mechanically inoperative fuel tank pressure (FTP) sensor
Expert:  Dan replied 3 months ago.

Would you like me to send you the repair procedures for this code from the factory service manual?

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