Expert: Everett Peacock - 3/22/2008

Question
sometimes when I go full throttle my engine vibrates violently,sputters and stalls or sometimes when I slowly accelerate it will do fine up until I reach about 2500-3000 RPM in which it will do the same.  Then at other times after its shakes and I turn off the motor for a while and start it back up, it will run fine. what gives. thanks

Answer
sounds like a overheating problem.. that engine has a system that kills the engine above 2500 rpm.  Either it is overheating or an oil problem.  the system is called slow..when it is activated it will kill spark to some cylinders to keep it below that rpm..