It might differ depending on if it's a Malibu "LS" or just a plain Malibu. My plain Malibu requires P215/60R15.
Might be a vacuum leak
you might want to try finding the fuse for the fuel pump, and unplug it, that might work
You can tell if the transmission, in your 1998 Chevy Malibu, is going bad. If there is a whining or clunking noise. The transmission might cause your engine to install when you are stopped with your foot on the brake.
depends on what engine,all the time
Frt valve cover on the driver side, might be held down by strip of metal should also only need to be changed if you can't hear rattling inside of it
The Malibu might have a problem with the vapor canister. If the canister is clogged up the fuel tank will not vent right and the car will be hard to start.
if you take you hand and rube across the rotor and it feels rough or if there is a grove in it then that bad, a rotor should away be as smooth as possible, depending on how thick the rotor it you might can get the rotoe turned if it isn't too late
check to see if there is a problem in brakeing system. might just be low fluid in master cylinder.
more then likely it could be the temp, sending unit. or a bad wire to temp, sensor!!
if your taking about the engine locking up, then it mostly happens because of low or no oil... you might have had an oil leak and lost oil.
You might have a bad battery, a poor connection between the battery and alternator, or a bad ground from the battery.