03 Regal GS L67. mods in sig. car has 115k on it now
I was driving it tonight and when i pulled up in front of my friends house and was waiting for him, i noticed that beteween 1200-1500 rpm the car felt like it was misfiring slightly. when he got in the car he said it didnt sound good, so i rolled down the window and sure enough the engine is ticking at idle/any rpm.
Any throttle above 25% causes one hell of a misfire and the SES light starts flashing.
im thinking either a loose rocker arm bolt, blown lifter or something similar. this is definately not a rod knock sound. sounds valvetrain related.
any ideas guys?
I was driving it tonight and when i pulled up in front of my friends house and was waiting for him, i noticed that beteween 1200-1500 rpm the car felt like it was misfiring slightly. when he got in the car he said it didnt sound good, so i rolled down the window and sure enough the engine is ticking at idle/any rpm.
Any throttle above 25% causes one hell of a misfire and the SES light starts flashing.
im thinking either a loose rocker arm bolt, blown lifter or something similar. this is definately not a rod knock sound. sounds valvetrain related.
any ideas guys?