I have a 1999 Ford Taurus SE with about 177000 miles on it. It starts and runs just fine until about 45 minutes. It then just shuts off. Just like you turned the switch. After about 30 minutes, it will start right up and the process starts all over. Fuel pump has been checked, OK. Crankshaft position sensor, coil pack and MAF sensor have been replaced. Never any codes. All relays have been checked. I took the PCM out an removed the cover to see if any components looked burnt. All looked OK.
So when it doesn't start what do you loose spark fuel etc?
August, 19, 2013 AT 2:19 PM
I checked for spark while cranking and I seemed to have spark. I used and induction timing light to check it.
August, 19, 2013 AT 3:36 PM
I would use a old spark plug or spark tester to test for spark. Also actual fuel pressure both when it won't start.
August, 19, 2013 AT 3:43 PM
Thanks, I'll try to check it tomorrow, if it quits raining.
August, 19, 2013 AT 3:45 PM
Sounds good keep me posted.
September, 4, 2013 AT 9:00 AM
I found a used ECM for a really good price that carried a guarantee. I decided it was worth the price to see if I still had the same problem. Turns out, no change. Still cut off at about 45 minutes and no codes.
September, 4, 2013 AT 10:57 AM
Alright now why don't you check the spark when it doesn't start like I suggested?