Hello,
I have a 2016 Jeep Patriot Sport (2.0L) that has about 90k miles on it. I recently did a tune up due to sluggish nature of acceleration and that the rpms seem to cycle while in drive (idle only at stop lights and such). Vehicle typically holds rpm at 600-750 while in park or neutral. When I add extra load such as AC turning on, the rpms will flux from the 700rpm to about 200rpm above that and then back down... much like it is cycling and not deciding on where the rpms should sit with the extra load. No issues when it is driving. The sluggishness seems to be ameliorated due to new air filter and new spark plugs. Regular mait has been done and should be in good shape. No codes or any issues showing from the diagnostic tool. I know that this isnt an engineering marvel of a car but can't seem to figure out why the rpm flux with extra load while idleing.
Well start with my video. Make your car run better with little spray cleaner Scotty. Watch that on YouTube and if not that check for vacuum leaks a lot of times you left hook up a smoke machine to see if the intake gaskets are leaking or some other places leaking in a smoke machine is the best way to find leaks on those systems
