2012 se Stalling at red lights

It's common for Fiestas to stumble after a fill-up. Mine will do it if I don't "breathe" the tank a bit. Instead of just pulling to nozzle out right away, try just letting it sit for about 15 seconds or so after it shuts off. Then take the nozzle out slowly, so that the vapors can come out a bit. I usually push the nozzle in and out a few times just good measure. I do all that and it never stumbles.

Don't top up, either. That makes it happen, too.

It's common for Fiestas to stumble after a fill-up. Mine will do it if I don't "breathe" the tank a bit. Instead of just pulling to nozzle out right away, try just letting it sit for about 15 seconds or so after it shuts off. Then take the nozzle out slowly, so that the vapors can come out a bit. I usually push the nozzle in and out a few times just good measure. I do all that and it never stumbles.

Don't top up, either. That makes it happen, too.

Especially with more of the Alcohol blends they add to the fuel.


The Fiesta - unless it's branded (that decal on the vehicle by it's "Stuck on" model branding) - as a Flex-Fuel vehicle - too full of a tank can send itself to the shop because of the fuel blend attempts to destroy the EVAP system by trying to trap vapors that wind up making a mess with how the system processes these newer blends.

They (those that sign the forms each year for the newer emission laws to take effect per states that do this...) are pushing more and more corn-based fuels into our tanks and thanking us for the tax income they provide.

IF you can - as you fill up - fill up with slightly less gallons of fuel (quicker-smaller amount of fuel fill) than to wait for the thing to shut off - doing it that way, or not as often leaving more time between fill-ups to dry out the system - leaves an air pocket to help the car start and keep the EVAP system seeing more vapors than the liquid parts of the blend - it "remembers to" pull fumes into the canister and instead it winds up plugging up it's air-passage lines trying to clear/purge it out.

To Add: (If anyone still reads these...)

• IF you fill too fast these days - the amount of detergents they use, generates a considerable amount of foam - thru the mixing of the liquid fuel and trapped fumes in the underground tanks to push more reclaimed vapors and fuel into the tanks - generates a considerable amount of foam. So,t if you fill up too fast - the smaller volume of tank to keep it in can push this foam and it's trapped liquid into the canister - that, after it dries out - "cakes" and traps even less vapors and won't pass as much air thru it (Making it harder to start)- at time goes on. Think of it this way - after a summer of overfills or foam trapping in that canister - you'll need to spend close to as much as $200 in a DIY hour spent in your garage trying to swap put canisters that are best left to let the professionals and their set of tools on those fittings.

Just an FYI....