Hello there!

I have an 09 Ford Focus SE, i bought it 4 months ago and so far it just had minor issues, not really with the performance, more with the carpet, 12v outlet… anyhow.

On sunday I was driving up and down the whole day. Until I finally decided to go back around my house. I noticed i had the last quarter of gas left so i went to put gas.

Everything fine, put some gas, go back to the car aaaandd it didnt turn on x.x. I had the parking light on and instrument cluster light started blinking as if it was static and the gauges needles started shaking below zero on the speedometer and the thing that messures the rpm [lol sorry i forgot the name] oh and it made this electric sound, like an electric pprrrr, much like a matraca http://www.parroquiadegibraleon.org/…es/matraca.jpg

First thing i tho: “***** i put diesel on it >.<” So i double checked and no, it was gas. Tried again and same sound and same shaking needles with the blinking light.

I called a friend and her bf conected the battery of her car to mine for a minute and then we tried and it worked. I drove it home and parked it.
Here is the issue: The message display on the instrument cluster has a device that, depending on how you drive, it will tell you how much miles per gallon you are doing. If anyone else has a Ford Focus, you guys know that this number goes up 0.2 miles in probably a day or two of perfect driving, and it would go down the same if you are speeding off and driving horribly. I had the “AVG MPG” display at 31.5 [and dammn thats hard to accomplish]. When the car finally turned on after the jumpstart that number was down to 10!!!!!!!!!!!!!! As i drove it home i noticed that it would go up like crazy.. all the way to 28avgmpg. I had it idling for a minute in front of my house and tht 28 went down to 0! and that is NOT NORMAL

Next day in the morning it didnt work again even tho it sounded as if it was trryyying.. but in the end it came back to the matraca sound.

I called a tow truck to take it to the dealer, the guy took 1hr to get there. When he is finally there, he turns the key aand the car turns on [WTF!? grrr] So i just drove it to the dealer.

The guys at the dealer said they checked the battery and it was giving a miserable 5.13V, so i had them change it. They replaced the battery with a brand new one, i went to pick up the car and yes, now it turns on normally [it actually sounds pretty cool, it doesnt make that hesitating 'do-i-wanna-turn-on-or-not' noise]..

BUT!!!!

The “AVG MPG” display is still going crazy… when driving it it could go up to 34mpg [which is imposible for the automatic transmission i have], when im at a red light it goes down to 29mpg and then up again and then when i finally park the car without turning off the engine starts going dowwnnn to ZERO. The idiots at the dealer say this is normal. ISS NOOOTT I have had 2 ford focus so far, one in 01/2009 that i gave away and this one, and that behavior is not normal T.T

Does anyone know what is going on? Ive been trying to read about it and so far i got [in the owners manual] that after the battery is replaced the computer that controls the engine needs to “relearn” how to drive or something o.O. It said to have the car idle and then drive it for 15 mins on a highway and then 20 min stop-and-go in the city. Then let the engine settle for at leat 8 hours and try again the same cycle. Did that too and it didnt work.

Note: When i have the key in the ON position without cranking the engine, the “engine light” stays on along with the other light but then it BLINKS 8 or 7 times…

Please heelpp!!!

- Mish!