WBH05
TYF Newbie
New to the Forum, just recently bought a 2005 Yukon XL Denali. Was a mechanic for 20yrs till my body said it's time to get off the concrete floors everyday so I now push papers during the day and turn wrenches a little in the evenings.
Denali was a one owner dealer maintained vehicle that was caught in a custody battle in which the wife won and wanted gone to cover a credit card expense therefore I feel like I got a dang good deal.
Upon the test drive I drove it like I stole it and made the oil psi bottom out at idle and valve train NOT happy. Therefore it's currently sitting in my garage with the oil pan off awaiting me to get home tonight with the correct harmonic balancer puller to finish tearing her down. Already have the pan and pickup tube off and the o-ring was definitely dried up and possible culprit but hoping to find a sticky relief valve in the pump tonight also. I drove it for about a week after buying and every other morning or so would bottom out on oil psi after about 2-3 miles from my house at first stop light and then never give another issue. Before anyone suggests sending unit already attacked it from that end first and confirmed it indeed was losing psi not just the gauge saying so. When it wasn't giving issues engine was Extremely quite for a GM 6.0, ran a compression check before tearing into it and had 170 across all cylinders and inside of engine is immaculate for 175K miles. Hopefully with some TLC she'll be a good one to last me a while!
Denali was a one owner dealer maintained vehicle that was caught in a custody battle in which the wife won and wanted gone to cover a credit card expense therefore I feel like I got a dang good deal.
Upon the test drive I drove it like I stole it and made the oil psi bottom out at idle and valve train NOT happy. Therefore it's currently sitting in my garage with the oil pan off awaiting me to get home tonight with the correct harmonic balancer puller to finish tearing her down. Already have the pan and pickup tube off and the o-ring was definitely dried up and possible culprit but hoping to find a sticky relief valve in the pump tonight also. I drove it for about a week after buying and every other morning or so would bottom out on oil psi after about 2-3 miles from my house at first stop light and then never give another issue. Before anyone suggests sending unit already attacked it from that end first and confirmed it indeed was losing psi not just the gauge saying so. When it wasn't giving issues engine was Extremely quite for a GM 6.0, ran a compression check before tearing into it and had 170 across all cylinders and inside of engine is immaculate for 175K miles. Hopefully with some TLC she'll be a good one to last me a while!
