98 jeep grand cherokee limited 2wd 4.0 i6
i have a noise coming from what i would assume to be the front end, happens when im driving down my street and my tires ride over the little bumps in the road. no big clanks over speed bumps or anything larger. it makes a sound like a metal object is...
try this, when the jeep is running and hood open use a flashlight to tap on the ecm if it runs like crap then clean and reconnect the harness use zip ties to secure the plugs so they do not rattle. if it still runs funny after the zipties when you tap the ecm the ecm may be faulty.
i had the same problem, mine turned out to be the connection on the ecm (computer) i used this trick and it worked perfectly! Infamous stalling problem identified, temporary cure 1997 grand Cherokee - JeepForum.com
hey there utah, looking at your pictures i see you are using e3 plugs, DO NOT DO THAT!!! use the stock plugs unless you have upgraded the rest of the ignition system to work (well) with high end plugs