Question about 2003 Ford Focus
Posted by Anonymous on
Good Evening from Cyprus. I will try to help you even from thousands of miles away. Reference you problem I believe it is the throttle Body dirty and is causing you a cut out immediately after you pull off you foot from the gas pedal. Means that the throttle due to dirt on the surrounding area of the body do not allow the throttle to close to the programmed position as a result the TPS ( Throttle Position Sensor ) does not read correct the moving - closing position as a result the air to be more reach than the fuel and cuts out. Sometimes even if you try to use a scanner to get the fault will not be much helpful. I recommend to clean the throttle body ( if you like by not stripping off ) as it is on the engine and just remove the air intake flex hose and using a ( Master Carb. cleaner and a cotton cloth,spray on the cloth and after somebody who will be in the car with ignition on having his foot on the gas pedal fully press down, you will clean slowly slowly and carefully the body with many times using the carb cleaner on the cloth and always using the clean side of the cloth. After that as your companion to pull his foot off the pedal and switch ignition off. The you try by starting the engine and see whether you do have any difference. Good Luck John.
Posted on May 07, 2015
Its ur idle bypass valve is stuck open getting to much fuel while ideling and flooding itself ..
Posted on May 07, 2015
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Posted on Jan 02, 2017
SOURCE: E85 fuel in a regular gas tank
Siphon out as much of the E85 as you can and fill the tank with good gasoline and drive it like you stole it for a while. You can't drain a tank without removing it and the fuel filter isn't going to catch anything in the E85. This is what I would do anyway.
Posted on Dec 13, 2008
SOURCE: ford focus 1.8tddi lack of power
make sure the car is not running on the battery only and the alternator is good and all of the vaccum lines are good and they are on and ask yourself when was the last time you had a tuneup spark plugs and wires if needed and drivebelt and a fuel filter and a air filter.
Posted on Feb 14, 2009
Electrical problem can be the most frustrating and difficult to diagnois especially when you are not phsyically at the vehicle. I will attempt to point you in the direction you should be looking. Right off the bat it sounds as if you are running low on power when the demand is high. First thing to suspect is the battery. For some reason it is low on electrical power.
Next thing is to figure out why. The first thing I would check are the cable ends. Are they corroded? It may not look as if the are, but they still could be. Clean them thouroghly.At times, when they are corroded that may be enough to stop the flow of current from the alternator to keep the battery charged up. If they look good, you may want to put your battery on a charger. Pay attention to the meter and see how much the battery is down. If it taking a lot of charge it could be it needs replacing, but charge it up and see how it works. Remember when charging a battery, first remove the caps and see if the cells are low on water. If they are your battery is probably the culprit. When a battery starts using water it's usually because some of the plates have over heated and warped, which causes them to touch each other and short out. BTW, when charging a battery make sure you remove the caps during charging. So leave them off after you check the water, AND if you need water use only distilled water. You can buy it just about anywhere, grocery store, Walmart, KMart, etc.
Check your altanator belt and make sure it is tight and not streached out. That could also be why the battery is not keeping up with the demand.
If that dosen't cure it, next take your battery in and have it tested and see if it is up to snuff. I hope this helps you and please let me know through your rating of this advice.
Posted on Mar 13, 2009
The Idle Air Control (IAC) valve is clogged. This part feeds air to the engine at start-up and idle when the throttle bodies are closed. I removed the throttle body assembly from my 2001 RX300 and separated it from the IAC. After a good cleaning with throttle body cleaner the IAC was good as new. I later decided to replace it during routine maintenance. You can pick up a brand new IAC on eBay (genuine Lexus/Toyota part). The dealer will want upwards of $400.00 for a 45 minute job (all you need are basis hand tools).
Posted on Mar 23, 2009
Check and clean Idle air control valve. Make sure its responding to signal as well. Also make sure ther are no vacuum hoses disconnected. This may not be a "cure" but it's a good place to start.
Posted on Apr 14, 2009
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