Jeep Grand Cherokee Laredo Engine Hesitate

So The Jeep Get About 140,000 Miles . It Was Driving Fine , The Rpm Was Little Not Steady , So Time For Some Tune Up , I Used 2 Seafoam...

When I Go To Start My Jeep, There Is Some Hesitation When It Cranks Over. It Sounds Like It Almost Wont Turn Over. It Always Does But...

Every Time I Try To Accelerate Or I'm Going Up A Hill, My Car Hiccups. The Rpm's Are Always Really Low During This And They Won't Go Up At...