Hello,
I am new to the forum. I am having an issue with my jeep that I have been unable to resolve. When I turn it on it rises to 2000 rpms and then falls back down to 800. It is intermittent. Also, intermittently it will not accelerate after hitting approximately 50mph. This is mostly going uphill and as I stated it is intermittent. My jeep grand Cherokee Laredo is an 04 and has 205,000 miles on it. the spark plugs were changed about a year and a half ago. oils been changed regularly never really had an issue with her until now. We tested for vacuum leaks and were unable to find any. Any help would be appreciated!!