Hello all, new to the form and have a weird issue going on with my wife's 04 GP. The car just hit 100,000 and I have completed a complete tune up. But it just started to do the following.
From 1700 -2000 rpms, the car cuts out sort of, the rpm gauge fluctuates back and forth bouncing and the car chugs, it does this when using the cruise, at speed with no cruise, also when sitting in the drive way in park. Another weird thing is, seems that it only does it on the highway when going down a grade, not while going flat or up hill. It has thrown no codes and has no issues other than that, runs great just like a striped, well you know the rest. I don't want to start throwing parts at it, looking for some suggestions and/or a way to test the "Accelerator Pedal Position Sensor" as I am thinking that it may be the culprit. Does any one have any ideas or maybe had the same exact issue and has fixed it ?
