Question about 2002 Ford SVT Focus

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2002 ford Focus

My car is misses at a idle, and going and stops on me we changed the fuil pump and fuil filters nd it is still doing the something can you help me


Cindy

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  • cindy_par17 Aug 05, 2008

    I buy my plug from my Ford Dealer, and we changed the oxygen sensor and cleared the computer, and it's work good so far





    Thanks for the help

    PS: if I have more problems I will check them out

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Sounds like a vacuum leak, most of the critical hoses are on the back side of the engine near the firewall, and one in particular is only visible when the car is on a lift rack (unless you can jack it safely on both sides with jack stands and crawl around until you can see the rear of the engine). Safest way is to have your quick lube shop look at the hoses while it is on a rack or over a pit. Several of these cars are supposed to have platinum plugs as well, many owners opt to replace them with a cheaper copper plug.

Posted on Aug 04, 2008

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does the car start and idle?

If so, replace the fuel filter - being you put in a new pump, then filled the tank, driving to the station may have caused seditments to get into the filter and plug it up.

Also, find your MAS (mass airflow sensor) and with car running, tap on it with a screwdriver handle (or small tool) -- if the car dies, or stalls, (idle fluctuates; more so than while just idling); you can first purchase MAS spray cleaner - remove, spray inside (honeycome) generously, let air dry for 15 or 20 minutes; install and start engine - tap again with small tool, and if it still dies, stalls, or fluctuates, replace the sensor (MAS).

Also, make sure that if you already installed a new fuel filter, that it is facing in the right direction. On most (inline {near tank} filters}, there is an arrow that should point toward the front of the car (or if mounted horizontally (from one side of car to other, facing both directions) make sure the arrow is facing the driver side.

Please let me know if you need further assistance.

carsandcomps,

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