I had the same thing happen when I had my heads off to replace the valve stem seals back in 2005 - everything went together fine but after starting it up it was missing on one cylinder. I eventually found the exact same issue - my #4 cylinder intake rocker arm had somehow tilted off the pivot. I ended up replacing the intake cam and rocker arm and its been fine ever since.


95 Montero SR
3.8 MIVEC, Advance headers, 2 1/2" exhaust, Magnaflow muffler, OME shocks & rear springs, 2" body lift, 3" tank lift, 4.90s, TRE front locker, factory rear locker, Roger Brown Rock Sliderz, 315/75r16 (35") tires, Sport big brakes