What type of vehicle could be fuel filter or water in fuel
It depends on what's wrong. If you are only guessing, i'd start with the fuel filter.
One thing that could be wrong with a 2013 Chrysler 200 when it loses power and smells like rotten eggs is the catalytic converter needs to be replaces. When a car has a rotten egg smell, this is usually the cause.
Sound like a transmission problem. Check your fluid first.
A 95 Toyota Corolla engine that loses power when idling can have a number of different things wrong with it including clogged injectors, a dirty fuel filter, or fouled spark plugs. Performing a standard tune-up will often resolve this issue.
It would depend on what is wrong with them and what year, make and model the vehicle is.
That would more then likely be the EGR VALVE
fuel filter could be clogged or the fuel pump is going out on it.
this can be caused by , bad plugs, bad coil, dirt in the fuel system or timing could be wrong
What happened to this vehicle?
wrong plug gap, wires on wrong, cap is cracked, timing moved when you put cap on
If a 1985 Ford F150 5.8, with a replaced speed sensor, cruise control surges and with a working pedal switch, it is due to vacuum leak. Check on the cruise box under the hood for any leaks.
Usually that means that your spark plugas are bad, I'd get a tune-up