4 banger not wanting to idle
So I'm having a wierd issue with my jeep, it's havin a hard time starting. When I turn the ignition it will turn on but unless I press the gas pedal down a bit it will idle down and die.
Battery is 3 months old and had it tested today and it's fine . Alternator is putting out good voltage, no vacuum leaks I could find, new fuel filter, new fuel injector O-ring, cleaned throttle body. Once it turns on if I let off the gas it will idle really rough around 500 rpms. However if I keep my foot on the gas from when I turn the ignition the rpms will be normal after a minute or two. Also once I drive it, it runs perfectly fine and idles normal at stops.
I though it might be a temp issue but it does this whether it's 5am or when it's been turned off after a long drive and turned right back on. Temp gauge reads normal, oil pressure is erratic, ranges from 45-75 when driving, it's fresh oil 10w-30 Mobil 1 synthetic.
SOrry for the wall of text, wanted to make sure I had all my bases covered before I asked for help. One other thing, my starter filled up with mud a month ago(mudding) and I had to remove it and clean it out, but ever since then it will have an occasional weak turnover but a good hit from the mallet fixes it right up. Although it seems like it rattles(clicks, squeaks? Hard to explain)during driving .
Last edited by YJjeeper1; 01-20-2014 at 08:50 PM.