I had hooked up my diagnostic tool to my truck.

Tiny
MSETLEY
  • MEMBER
  • 2004 FORD EXPLORER
  • 94,000 MILES
I had hooked up my diagnostic tool to my truck, to find out why mt check engine light was on. The code p0456 came up and it said evaporative emission system leak detected, very small amount. Now I trying to figure out where to look for this leak and how to reset the compter to get the engine light off in my dash.
Saturday, December 1st, 2012 AT 3:46 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Do not reset anything as the freeze frame data is there to show when and all the readings when the failure occured.

You need a smoke machine, scan tool and a voltmeter to determine the failure. It is not as easy as you think.

Roy
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Saturday, December 1st, 2012 AT 3:56 PM
Tiny
MSETLEY
  • MEMBER
  • 1 POST
Ok thanks. Do I have time to fix this problem. Also can this turn bad quick?
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Saturday, December 1st, 2012 AT 4:07 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
No, just an evap issue and can wait

Roy
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Saturday, December 1st, 2012 AT 4:52 PM

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