Why my truck makes a ticking noise the engine. Sometimes for days then not

Hello, the concern here is - where is the ticking noise, when present, originating from? Engine valve train? Fuel injectors ticking? Base engine ticking? Rod bearing or main bearing ticking? Something else? The first thing to do would be to troubleshoot the location the ticking is coming from, when it's occurring. Having reliable information is also important. So, I recommend you address and repair your oil pressure gauge concern. If your oil pressure is not adequate or is a problem for the engine, this is something you need to know. If the gauge and sending unit are in question, but the oil pressure is actually good, then you can address that accordingly as well. Eliminating variables is important in a diagnostic process. I would recommend a shop near you is employed to address your concerns in person - this way working to resolve whatever is wrong. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.