RWheelihan
Member
So driving back home from a little road trip labor day weekend we stop and fuel up about half way home and I sense a little bit of a stumble or rough idle (this is my 3rd expedition so I am already aware that the coil packs go out in them). So Will keep heading home for a few more hours and then about 20 minutes from home the A/C stops blowing cold. We get home and late and I start diagnosing the next morning. I notice at start, up the compressor runs for about 5 seconds and then clutch disengages and she blows hot. i scanned the computer and got a P035 ignition coil D primary/secondary circuit. So to fast forward I have done the following, jumped the low side pressure switch still no clutch engages, jumped the clutch and she blows cold, changed the coil pack "D" #4 against the fire wall on passenger side. I can clear the code and check engine light goes off but the AC clutch still won’t come on then after a little bit of running the check engine light comes on and it starts stumbling again.
it is a 2003 expedition four-wheel-drive XLT 5.4 L. Manual controls for front and rear air conditioning.
I would appreciate any suggestions, I have read on one other form that the guy had a problem with his ECU and it was Still thinking he had a coil pack out and it was killing the AC.
it is a 2003 expedition four-wheel-drive XLT 5.4 L. Manual controls for front and rear air conditioning.
I would appreciate any suggestions, I have read on one other form that the guy had a problem with his ECU and it was Still thinking he had a coil pack out and it was killing the AC.