Hi, Guest
06-17-2004, 12:12 PM
fuel filter is a big one.
9 times out of 10 when a fuel pump goes it's because of a plugged fuel filter.
keep in mind it can take only one tank of gas to plug a fuel filter so they should be changed every 20,000kms or so.
plugs, the stock wires on some foci have issues with the shielding detatching from the core so new wires may also be in order.
air filter
new or clean your performance filter if equiped
O2 sensors are always a good idea to check when you check youir plugs.
be sure to get yourself a O2 Sensor socket or O2 Specific crows foot. if you use a wrench you can fubar things very easily. you also may need a torch to heat up the area around the O2 sensor to red hot before the sensor can be removed.
keep in mind Focus O2s are 4 wires and usually cost anywhere from $78 to $235cnd depending on brand. don't cheap out on O2s, they wont last as long and are usually not as accurate.
NGK or Bosch are the O2s to use. you also should only need 1 for our cars unless the downstream sensor is switching on you causing the CEL to come on.
other than that there is not much to "tune-up" on our cars
9 times out of 10 when a fuel pump goes it's because of a plugged fuel filter.
keep in mind it can take only one tank of gas to plug a fuel filter so they should be changed every 20,000kms or so.
plugs, the stock wires on some foci have issues with the shielding detatching from the core so new wires may also be in order.
air filter
new or clean your performance filter if equiped
O2 sensors are always a good idea to check when you check youir plugs.
be sure to get yourself a O2 Sensor socket or O2 Specific crows foot. if you use a wrench you can fubar things very easily. you also may need a torch to heat up the area around the O2 sensor to red hot before the sensor can be removed.
keep in mind Focus O2s are 4 wires and usually cost anywhere from $78 to $235cnd depending on brand. don't cheap out on O2s, they wont last as long and are usually not as accurate.
NGK or Bosch are the O2s to use. you also should only need 1 for our cars unless the downstream sensor is switching on you causing the CEL to come on.
other than that there is not much to "tune-up" on our cars