I've been fighting with my 3800's engine since the drive home from the dealer.
Issue seems fuel system related; it only presents when climbing steep hills, symptom is a pulsing throttle, you can watch the RPMs increasingly start twitching more and more.
A new fuel regulator/pump/filter + new o-rings on my injectors, same issue.
Mechanic now thinks it is a bad map sensor. Should be a cheap part ($90-100), and he states it is easy to replace. Unfortunately, the drive out to replace it is $650. I "think" I found the part online; but I can't for the life of me find it on the bus. If it is easy to replace, I can do it myself.
Does anyone have a picture of what the dang thing looks like, and where it is? And is this: https://www.tamerx.com/icp-ebp-senso...rt-isk955.html