||09-24-2013 10:33 AM
Engine ticking making me nervous!
My 1993 4 cylinder YJ currently has 127k miles on it. A while back I noticed a ticking that sounded like it was a rod or coming from the valves. I tore the motor apart checking the rods - the rods were perfect and I didn't notice any marks/scrapes on the metal. I didn't want to mess with the valves since they are hydraulic, so i put the engine back together, changed the oil with 10w30 and added in some lifter quieting fluid in with the oil. There was no change in how loud the ticking was. I know it's common for a 4 cylinder to tick, but what bothers me is when I give it some gas, the ticking gets louder and more aggressive. It is coming from the driver side of the motor right where the valves and injectors are. What could be the problem here? Is it a sticking valve? Bad injectors? Or is it just how the engine is meant to be? I know it's a Jeep and it's born to be loud, but that sound gets quite loud when I give it some gas (2-3.5k RPM).
Thanks for all the advice!