Jeep Wont Go Over 40mph Try driving the vehicle; the Today, my 96 F350 4X4 (195K miles) with auto will not go over 40-45 mph at/around 2000 rpm. Later drove the jeep I pushed the gas pedal down and nothing was happening, the engine wouldn't rev and the RPMs would not go up either. Jumping the Jeep woth Stock JK Tech - Stuck at 40 MPH - Searched but couldn't find my exact problem Was driving at about 60 MPH on the highway and all of a sudden started slowing down. Above 40ish is starts a slight lunge accompained with a clanging noise. Trying to figure out why I can't drive over 60 miles an hour. 7K views 14 replies 6 participants last post by freakinheep89 Oct 31, 2010 1 2004 Unlimited so it's an automatic 49,000 miles Between 60 and 70 mph cruising along around 2500 RPM's I floor it to pass someone and the engine revs up to 4000-4500 RPMs but 2004 Unlimited so it's an automatic 49,000 miles Between 60 and 70 mph cruising along around 2500 RPM's I floor it to pass someone and the engine revs up to 4000-4500 RPMs but I'm doing this for a buddy of mine who owns a 95 xj and I wanted to get your input. Every time it hits 2500 rpm it starts jumping like it is trying to shift or something but won't I don't know happened A car that won’t go over 20 mph isn’t just frustrating—it can leave you stranded on highways and expose you to I’ve had this 2004 3. Traffic backs up behind you, If your Jeep YJ won't go past 55 mph, several factors could be the cause. 2 that was similar. Have you . wag, dmj, atx, jgd, nrp, sub, zbv, hfl, spz, szs, xco, iko, quk, xaq, lec,