driveshaft
Active LVC Member
how would i go about testing the coils on my 1995 mark viii? it's running rough, seems to be worse when it's cold and wet out. already changed the wires, it seems a little better.
testing ignition coils
- Thread starter driveshaft
- Start date
FASTLLS
Dedicated LVC Member
Stick a screwdriver in the end and turn over the engine.. If it hurts, then your good.. :lol:
No really, there is a TSB on the LS side that tells how to test coils.. I'll see if I can find it..
EDIT:
http://ww2.justanswer.com/uploads/s420/2009-12-10_200445_02_Escape_COP_misfire_tsb05-22-08.pdf
No really, there is a TSB on the LS side that tells how to test coils.. I'll see if I can find it..
EDIT:
http://ww2.justanswer.com/uploads/s420/2009-12-10_200445_02_Escape_COP_misfire_tsb05-22-08.pdf
NoLimit95
Dedicated LVC Member
Have the car scanned. It will tell the truth if any coils are bad.
driveshaft
Active LVC Member
My car is OBD1, will that work?
Sapperfire
Dedicated LVC Member
No, you need data stream, obd1 can't data stream... You've got 2 coils.. If 1 is bad, car won't start.
Remove wires from the coil 1 at a time with car running... When a wire is removed it will misfire instantly if working properly. Repeat until you pull a wire that has no effect. Then swap that wire with another. Repeat process on those wires...check spark plugs for proper gap ( .054)
Remove wires from the coil 1 at a time with car running... When a wire is removed it will misfire instantly if working properly. Repeat until you pull a wire that has no effect. Then swap that wire with another. Repeat process on those wires...check spark plugs for proper gap ( .054)
driveshaft
Active LVC Member
Sounds good, I will try that! I wonder if one could be on it's way out. It also had a dpfe code, could that cause a rough idle. It's also rough taking off and driving @ low rpms.
Seems to run worse when it's wet out, and better after driving for an hour or so. The wires were definately bad, they were sparking all over the place. It is a bit better since i changed them.
Icarus
Dedicated LVC Member
What kind of scanner are you using? Many show live data... I thought you were a mechanic or something like that?
I've hooked two different ones up to my car this past few weeks to monitor the O2's among other stuff...
driveshaft
Active LVC Member
i tried it, and every cylinder seems to make a difference.
im not sure where to look next. i know a lot of vacuum hoses look bad on my car.
im not sure where to look next. i know a lot of vacuum hoses look bad on my car.