You need to get that lifter out of your engine...it could damage your cam and then it gets costly. Lifters are relatively cheap to purchase from a parts store. All you need to do is take off your valve cover, crank the engine (watch out! this can get messy!), Isolate the lifter by listening and pushing down hard on the rocker arms while the engine idles. When you push down on your culprit lifter, the tick should get very loud. You'll know it when you hear it. Once you find your dud lifter, you can kill the engine. Then, remove that rocker and rocker arm and you should be able to see your lifter down in the hole. If it isn't completely mushroomed, you should be able to use a strong telescopic magnet to just lift it out, and then drop your new one in. If it's jammed, then you may have to get crafty. (The dealership uses a special lifter-extractor tool, but I'm sure it isn't cheap). Any how, when the old lifter's out, put the new one in, rocker arm and rocker back on properly,run the engine to make sure it runs right (a light lifter tick is to be expected until it settles), then put everything back in the proper order at the proper torque, wipe everything down, add oil if you need it, and you should be good to go. If your lucky, a 2-3 hour job. It'll cost you around $10 for the lifter and $8 for the valve cover gasket. Or you could just pay a trusted mechanic to do it and it shouldn't cost TOO much.
Hope that helps, and if I missed or overlooked anything I hope someone will let you know.
'93 2.5L, RE 4" lift, 33" x 10.50s
Last edited by Bret93YJ; 12-09-2006 at 09:44 AM.