Q&A

that sounds to me like excessive carbon buildup caused by short drives, see when you only drive for a few miles then the engine never has a chance to fully warm up and that will cause carbon to build up, to avoid this you will want to let your car warm up for a full 5-10 mins before leaving, no matter what the temp is and go down the highway from time to time that should really help to burn up the carbon and keep it from forming also make sure that the pcv valve is in good working order but I would definately run a 3 part fuel system cleaner through the engine, it comes in a kit including fuel tank additive, throttle body cleaner and top engine cleaner. to clean the throttle body with the engine off remove the intake boot and spray the throttle valve and inside the body itself with the cleaner from the kit also for this I like to use an old soft bristle toothbrush to help loosen the caked on carbon buildup, after that is clean reinstall the intake boot and start the engine you will need to hold the gas pedal to the floor until it starts to clear the flood that was just caused with the throttle body cleaner, next make sure you add the bottle labeled for the gas tank to the gas tank cause there is a difference between the two and for the final bottle you will need one of two different style feed devices there are two types to choose from one hooks up to a vaccum line and engine vaccum draws the treatment in and the other hooks up to shop air and the shrader valve on your cars fuel line this style is much more effective, but requires fuel pump be disabled by removing its fuse or relay and MAKE SURE THE GAS CAP IS OFF to releive pressure in the tank

it has 119,600 miles fluids are fine no water in the oil or vice versa. but i am noticing that it does use a bit more gas than most 4 bangers i've ever had. don't drive far or much, work and back just over a mile. i even have the records from the past owners tune ups.