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Old Dec 31, 2004 | 08:06 PM
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Default Code help please

Check engine light on , P0440 H & C in display. What is it?
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Old Dec 31, 2004 | 08:09 PM
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DTC P0440 Evaporative Emission (EVAP) System

Here's a link for code info.

http://www.c5forum.com/ayc/2000dtc.php
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Old Dec 31, 2004 | 09:07 PM
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Originally Posted by jmzvet
DTC P0440 Evaporative Emission (EVAP) System

Here's a link for code info.

http://www.c5forum.com/ayc/2000dtc.php
Thanks for the link
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Old Dec 31, 2004 | 09:27 PM
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Check your gas cap and be sure it's tight.

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Old Dec 31, 2004 | 09:33 PM
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Originally Posted by Y2Kvert4me
Check your gas cap and be sure it's tight.

Cap seems to be okay. I placed alittle lithium grease around the edge just to make sure its sealing. But ck eng lite still on. I did hear alot of pressure sounds from the gas filler as I opened it. I have about 1/4 gas on the meter & the sound lasted about 15 seconds. Is there a fuse I shuld check & where are the evac lines running from & to?
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Old Dec 31, 2004 | 09:39 PM
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Did you reset the code and it came back?
Resetting the code will kill the CE light. Try that first. If it comes back, then there's still a problem.
That pressure buildup isn't normal, but I couldn't tell ya where or what to look for.

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Old Dec 31, 2004 | 09:40 PM
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Originally Posted by Y2Kvert4me
Did you reset the code and it came back?
Resetting the code will kill the CE light. Try that first. If it comes back, then there's still a problem.
That pressure buildup isn't normal, but I couldn't tell ya where or what to look for.

No I didn't. I'll try it now and see.
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Old Dec 31, 2004 | 09:46 PM
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Okay I reset code and check eng lite went off. I shut it down & restarted but DIC said to pull key & wait ten seconds. Did that & all seems well at this time.
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Old Dec 31, 2004 | 09:49 PM
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It will take a bit of driving before the CE light comes back, it won't be an immediate thing.

However, if you restart the car and go into the diagnostics again, if the code is back, you still have a problem.

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Old Dec 31, 2004 | 09:53 PM
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I went back into the diagnostic and the code was gone.
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