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Ecotec difficult to start after refuel
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Supernaut
User
Jan 13, 2013, 7:49 AM
Post #1 of 6
(2306 views)
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Ecotec difficult to start after refuel
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My 2004 sunfire coupe has 314,000km (195,000mi) on it and normally starts up just fine and right away. Even when it is bitter cold out down to -30c (-22f).
Over the last few months an issue has been creeping up and has lately been severe enough to take notice. When I refuel, whether it be a full talk or half a tank, doesn't matter, The engine is really hard to start immediately afterwards. It used to be just a little extra crank than the usual flick of the ignition and it would run easily enough. Now its become Crank for a few seconds.... not running, pause, crank a few seconds... still not going....pause.... crank a a few seconds more, now running but I have to give it a little gas to keep it going for the first 10 seconds or so. And that's it, its fine after that. Any other time it starts instantly, hot or cold, doesn't matter. Just not when I refuel.
Has anyone encountered this kind of situation before? I'm not sure I could rationalize it as a fuel pump or filter issue. I'm going to change the fuel filter anyway since its due for it. Some kind of sensor problem maybe?
Some insight would be greatly appreciated. Till I solve this I think I'm
just going to refuel with the engine still running. Everyone used to do
it back in the day.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 13, 2013, 8:09 AM
Post #2 of 6
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Re: Ecotec difficult to start after refuel
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When you refuel are you filling it to the very top?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Discretesignals
Ultimate Carjunky
/ Moderator
Jan 13, 2013, 8:54 AM
Post #3 of 6
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Re: Ecotec difficult to start after refuel
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EVAP purge valve is probably stuck open. If it is stuck open during refueling, fuel vapors will be pushed from the charcoal canister into the engine causing a flooding condition.
Disconnect the vapor line from the purge valve that goes back to the charcoal canister (not the one to the intake manifold) and the purge valve electrical connector with the engine running. If you feel vacuum on the nipple replace the purge valve.
Valve is located on the driver's side of the engine near the power steering pump.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jan 13, 2013, 8:55 AM)
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Sidom
Veteran
/ Moderator
Jan 13, 2013, 10:48 AM
Post #4 of 6
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Re: Ecotec difficult to start after refuel
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I agree with that.....You would think there would be a stored P044x code.....
(This post was edited by Sidom on Jan 13, 2013, 10:49 AM)
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Supernaut
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Jan 14, 2013, 6:51 AM
Post #5 of 6
(2228 views)
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Re: Ecotec difficult to start after refuel
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Thank you, this points me in the right direction.
I do usually fill the tank to the top but sometimes only get 20L or so if the gas price is high. The starting result is the same.
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Hammer Time
Ultimate Carjunky
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Jan 14, 2013, 7:50 AM
Post #6 of 6
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Re: Ecotec difficult to start after refuel
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I was trying to find out if you were flooding the charcoal canister by overfilling. Apparently not.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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