2008 Suburban 5.3, 154k. Changed the oil tonight. When I went to start it after refill, the gauge did not show any oil pressure. After about 7 seconds or so (felt like years), I knew something was wrong and turned the truck off. I tried it again quickly and still no pressure. I wondered if I had a filter issue so I removed the filter and put another on. No change.
It has oil and it’s apparently not a filter issue. Has the pump failed? Has the oil pressure sensor failed? All other gauges work fine. Any idea why draining the pan would cause something to change?
It has oil and it’s apparently not a filter issue. Has the pump failed? Has the oil pressure sensor failed? All other gauges work fine. Any idea why draining the pan would cause something to change?