All of the sudden my RPMs started bouncing up. Today was the worst. My usual idle is a line under the 1,000 RPM mark. Lately it's been going up to 1,000 and a line over 1,000 (1,250?). Earlier today I started the engine and the RPM hovered at 2,000. I turned off the engine, restarted and it rested back at 1,000 - 1,250..
AC is off.
I recently changed oil and wonder if this is the reason. I used 5W30 Synthetic. I live in Seattle. It's about 70 degrees +/- right now.
What about when I press my clutch in sometime and let off the gas the revs jump up a bit?? happened a couple of times
Currently 04 Sahara: 3" BDS lift, 9500 BDS Monotubes, Flowmaster Super 44, Olympic Rocker Guards, 33" Duratracs, 15x8 Black Rock Blades. http://www.yoco-offroad.com
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Mine isn't doing that. It stays at level consistently. I just went outside to see what else I might find. RPMs were down under 1,000 where I would consider normal based on my experience with this jeep. I couldn't get it to repeat this time. I checked all the hose connections. Looked at the ends to check for cracks etc.. Nothing stood out. Truly wishing I knew more about engines right now.
Only things I've done to this jeep is changed plugs, did a quick seafoam application to fuel and brake vacuum hose, and changed oil. I did check to make sure the brake vacuum hose is seated right. This problem started several weeks after that activity anyway.