2005 Jeep Wrangler, 4.0L, 6 Cylinder, Automatic Trans.
These problems could be related, or unrelated. I am not sure. Also, it is winter.
Every time I turn my Wrangler on when the engine hasn't been on in a few hours/cool, the Oil Pressure Gauge will not respond, a check gauge light pops up. It requires that I restart the vehicle. After doing so, Oil Pressure Gauge responds normally, check gauge light turns off.
Meanwhile, my friends have told me my engine is 'louder'. As in it sounds like it's simply running a lot louder than normal. He also said he heard it 'clunk' once (while that Check Gauge Light was on), but I been driving the thing around and listening to it (while Check Gauge Light is off) and havent heard any 'clunking'. It's just noticably louder. I have installed a K&N Air Filter to it, but that has been about a year ago. I don't recall it being so noisy as it has been during the winter months.
Last, in the back of the engine compartment, I hear a soft clacking noise. I have no idea what to make of it, but maybe it will make sense to someone else.
Past that, everything normal. It maintains a normal RPM at Idle, and has no problem with driving. I am going to change the oil out, and replace the Oil Pressure Gauge and see how that goes. But if you guys can identify these problems as something else, or god forbid something major. Please tell me.
Also going to see if I can get the engine to run after work with the check gauge light on and listen/prod it, and see if the engine is acting abnormal while the error is happening. Then I am going to Autozone to find out what errors are happening.