I recently noticed the oil pressure would goto 40 on a cold start then slowly goto 20. When accelerating it would barely go up from 20. I checked the oil after I let it sit and it was about 1-2 quarts low. Its been about 950 miles since the last oil change. I dont know what the normal oil pressure should be but before this at a hot idle it sits about 20 and goes to 40 when accelerating. Truck has about 84k miles.
I went to replace the lower shaft I'm not 100% that is the name but the coupler that connects to the rack and pinion. Me being an idiot I put it on the thread side is towards you and the bolt is stuck . Any ideas how to get this off I was going to try a screw extractor or a grindeer?
I installed a aftermarket radio and my now I have no air through the vents on heat or AC. I thought I must have disconnected something running the wire harness for the radio. I took out the glove box to get a better look and didn't see anything. I've checked my fuses, did a hvac reset. The blower comes on and I can hear the actuator when I change it on the control and I can see it change positions under the dash.
I have a 2012 GMC Sierra 1500 5.3 about 70,000 miles. It just started doing this rough idle when you come to a stop in drive the rpms drop to about 500 and the truck feels its going to die, if you shift to neutral it doesnt do this. I don't know if its related or not but shortly before this I noticed the oil pressure was dropping to just about 20 when its up to operating temperature and you come to a stop. I have tried to find vacuum leaks, I have cleaned the throttle body, ran sea foam through the tank and the throttle body. I have changed the air filter, changed the plugs/wires and changed the maf.
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