All coolants and oils are all to correct levels. When the temps are higher then 95 degrees the engine runs like it needs a major major Tune Up. I have recently givin the truck a tune up, NOT the PROBLEM. My ? could fuel injected engine get Vapor Lock @ High Temps. Or is there a posibilty that the Mass Airflow Sensor can't handle extreme heat and needs to be changed?
Jul 7, 2008 at 1:24 PM
