Engine Performance problem
2000 Mercury Cougar 6 cyl Front Wheel Drive Automatic 160000 miles
I have a P0301 error code. I had the car taken to a repair shop and they said it was a valve train issue. I tested the spark plugs, all 6 have a spark. I swapped the #1 and #2 spark plugs and received a P0301 and a P0302 error (expected). I erased the error codes and swapped the #1 and #4 spark plugs and no errors came back (not expected). The firing order is 1, 4, 2, 3, 6, 5. After closing up for the night, I realized that antifreeze is leaking, I have not found the leak yet, I suspect the thermostat area. My question is, could the thermostat or some part of the cooling system cause a misfire or the same indication as a misfire (engine bucking) or is it a seperate issue all together. The car did not overheat, but the low antifreeze light came on around the same time the check engine soon light came on.
have the same problem?
Thursday, May 6th, 2010 AT 7:21 PM