2004 GMC Yukon XL 1500 Q&A
2004 GMC Yukon XL 1500 Question: 5.3 engine with 86,000 miles has suddenly started using a lot of oil.
IT'S EITHER LEAKING OR SMOKING! YOU SAID NO LEAKS SO IT MUST BE BURNING OIL, WHY I DON'T KNOW. DOES IT RUN OK? NO MISFIRE GOOD POWER? YOU SAID NO PCV VALVE BUT ALL ENGINES HAVE TO BREATH! - pushrod