My dad's 2002 F150 was running cold, about 1/4 or less reading on the temperature gauge. He bought a new thermostat and the gasket from Ford and replaced it. The truck now runs where it used to, about right in the middle of the gauge. But after driving it arouind for a little bit, after it had time to warm up, its starts missing real bad. I plugged my SCT tuner into it to read for codes and am getting a P0308 which is a Cylinder Number 8 Misfire Detected. It runs fine until it has warmed up, then the misfire starts.
We checked all the connections and everyhting seems to be in place. He didn't really even have to take much apart to replace the thermostat. I think just the intake was removed from the throtle body and pushed aside. And he cant think of anything that he did that would cause this, but it just seems more than a coincidence. A very little coolent spilled out by cyl #5, but nothing came close to #8.
Any ideas?
Thanks!
We checked all the connections and everyhting seems to be in place. He didn't really even have to take much apart to replace the thermostat. I think just the intake was removed from the throtle body and pushed aside. And he cant think of anything that he did that would cause this, but it just seems more than a coincidence. A very little coolent spilled out by cyl #5, but nothing came close to #8.
Any ideas?
Thanks!