I asked a question yesterday about the evaporative emission system. Donated $5.00. Where is my answer?

Tiny
MCURTIS93
  • MEMBER
  • 1998 BUICK LESABRE
  • 126,000 MILES
I asked a question yesterday about the evaporative emission system and donated $5.00. Where is my answer?
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Wednesday, March 14th, 2012 AT 5:06 PM

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Tiny
SATURNTECH9
  • EXPERT
What was your question?I will help you with it. Did someone post a response to your question?We havent been getting are email alerts to let us know when someone that asked a question we posted a response to posted another reply on the question they asked. They have fixed that problem now. So what was your question I will help you with it.
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Wednesday, March 14th, 2012 AT 5:11 PM
Tiny
MCURTIS93
  • MEMBER
A 1998 buick lesabre. Code says P0440. Evaporative emission control malfunction. Is this a specific item with a simple fix? If so, where is it? Thanks
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Wednesday, March 14th, 2012 AT 7:28 PM
Tiny
SATURNTECH9
  • EXPERT
I posted the trouble tree for your code P0440 it means the computer detects a leak in the evap system. Which controls the fuel vapors it could be something as simple as a gas cap.I would make sure its tight and also inspect the seal on the gas cap for cracking etc. Its not just a you have this code replace this it has to be diagnosed. As you can see in the first steps of the trouble tree it has you use a scan tool and look at the readings. If you have a actual leak somewhere your going to have to use a smoke machine to force smoke into the system. Unless you get lucky and find a broken cracked or hose off. The smoke machines are very expensive I saw a guy on you tumbe make one with a fish pump halloween smoke machine some tubing and a cardboard box.I would have used a 5 gallon bucket with lid instead of the box.
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Wednesday, March 14th, 2012 AT 8:17 PM

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