2005 envoy xuv 4.2 L. Significant oil loss. No leaks and doesnt appear to be much abnormal smoke from exhaust. OBI shows #6 cylinder misfiring. Obvious cylinder misfire while idling but runs good up to speed. Original OBI reading said camshaft position sensor problem. Replaced. Assuming top end needs repaired, head,etc. More concerned this may be an ongoing problem with this year and model or could be bigger issue. What would be your diagnosis as to the problem. Will try compression check. Thank You.
Jun 16, 2010 at 5:28 AM
