Dec 12, 2017 · From reading a bunch of posts, I feel ok about the 2.4L engine noise. I am still not sure about the rough idle while stopped with the vehicle in D. The vibration is pretty strong, and it levels off when put in N or P. I took a short video of the engine while in N, and then in D, and there is a significant difference in the visible engine vibration.
Again somewhat rough idle (not real rough) is normal on these motors but sluggish performance on top is another issue. CLICK ME>> Rooney's 08 X build <<CLICK HERE -2009 Jeep jku sahara. 2" terraflex lift, 52" light bar,4"light pods, Rubicon shocks, smittybuilt bumper, qudratec sliders, old man emu steering. Jan 19, 2007 · Cheap resolution is to disconnect the IAC at the Throttlebody when it is idling normally. Then forget about it. The 4.0 will not throw an engine code and emissions will be unaffected. You may have... Apr 27, 2017 · P050D Description During a cold start, the Engine Control Module commands dual-pulse mode during Open Loop operation to improve cold start emissions.In dual-pulse mode, the fuel injectors are energized twice during each injection event.
I got a 1979 Jeep CJ7 with the 258 cu. in. inline 6 cylinder engine and automatic tranny and have only put When I got it, it had a rough idle, no problem I thought, tune up, maybe a new carb and I'd be...May 21, 2020 · One very common cause of idling rough is a problem with a vacuum hose in the vehicle. The hose could be damaged, loose, or worn out, creating a leak. This could result in an abundance of air mixing with the gasoline, which would result in a misfire. Then, the result of that would be a car that is idling rough or having a higher than normal RPM.