Coolant may have leaked into an electrical connection while disconnecting the hoses. Check the sensors located on the front of the engine and make sure that all electrical connections are dry.
A malfunctioning battery can't provide enough power to your ignition system when the motor is idling can cause sputtering. If there is not enough gas, that can cause your vehicle to sputter. If the spark plugs fail to fire will also cause your vehicle to sputter.
Cause it does
Yes, it is possible that a cracked serpentine belt will cause poor fuel economy. Many people will have significantly improved gas mileage after changing the belt.
nissan primera overheating after changing the water pump and radiator what could be the cause of this
If its clogged
Yes
No
You have a blown head gasket.
Make sure ALL ground wires are attacheted
It may need a tune up.
try changing fuel filter first. it could also be the catalytic converter. that can get plugged up and cause your vehicle to lose power.
Yes it can.