If you mean hunting at idle, the problem is caused by the idle speed being set too high or the idle switch is not properly adjusted.
When the throttle is closed as indicated by the idle switch the fuel is cut off by the fuel cut solenoid until the engine speed drops below a preset speed. If the engine speed is higher than that speed and the idle switch is closed there is no fuel for the engine, thus the engine speed drops. When it drops below the preset speed the fuel is turned on and the engine speed goes back up.
5w-20
A ford focus with a diesel engine has a fuel capacity of 60L (15.85 gallons.) Depending on the model, the Focus can get from 67 to 80 mpg estimated mileage.
About 50,000 miles is recommended for ALL serpentine belts.
It comes on when the engine computer detects a malfunction and sets a code.
to my knowledge 5 litres.
Yes
Diesel or petrol?
How do you turn of the engine on a new ford focus
not on the 2001 1.4 models anyway!!
There are pages and pages of causes. Have it checked for codes with a scan tool.
At least 35 miles.
87 octane.