I recently noticed my rear suspension does squeak harshly too when rocking from side to side. If I keep my weight on one side, it only squeaks when my weight is first shifted to that side. I'm pretty sure it's a little grit that has worked it's way into the linkage. Has anyone one of you had a problem with the check engine light coming on after splashing it around in a river for a few minutes?? It seems to reset itself after I turn it off and the electrical circuit completely resets before restarting it.