Missing in cold weather
#1
Missing in cold weather
Is anyone have this issue? Couple weeks ago we had a cold front come through and I ended up getting a misfire in #4. Replaced Plug and coil, seemed fine. Drove short distances and back and forth to work. Had another front come through couple days ago but did not drive the truck until today. Cold and raining and about 20 miles to work it starts to miss again. At idle you can feel it. COPs only 12k on the as well as the plugs.
#2
Is anyone have this issue? Couple weeks ago we had a cold front come through and I ended up getting a misfire in #4. Replaced Plug and coil, seemed fine. Drove short distances and back and forth to work. Had another front come through couple days ago but did not drive the truck until today. Cold and raining and about 20 miles to work it starts to miss again. At idle you can feel it. COPs only 12k on the as well as the plugs.
Same cylinder?
Using new boots?
Proper application of dielectric grease?
Bad set of COP's ( or OEM's starting to fail as they age )?
Humidity is hell on these systems if not properly sealed.
Above is just low-hanging fruit....
Good luck
MGD
#3
Not sure if it is the same cylinder..
Used new boots when changed the COP with dielectric grease...according to this forum
COP only have 12k on them.
Is there a way to tell if you have a bad COP? I have read that you move them around and track the misfire to the cylinder, but if it is not throwing a code, how do you know.
Used new boots when changed the COP with dielectric grease...according to this forum
COP only have 12k on them.
Is there a way to tell if you have a bad COP? I have read that you move them around and track the misfire to the cylinder, but if it is not throwing a code, how do you know.
#4
Not sure if it is the same cylinder..
Used new boots when changed the COP with dielectric grease...according to this forum
COP only have 12k on them.
Is there a way to tell if you have a bad COP? I have read that you move them around and track the misfire to the cylinder, but if it is not throwing a code, how do you know.
Used new boots when changed the COP with dielectric grease...according to this forum
COP only have 12k on them.
Is there a way to tell if you have a bad COP? I have read that you move them around and track the misfire to the cylinder, but if it is not throwing a code, how do you know.
Moving COPs is the usual method, once a reliable indicator is present ( either hard failure or a device capable of retrieving stored pending codes ).
End-user diagnosis of a COP itself is limited to resistance measurements, but that is inconclusive, as they usually fail under load.
Sadly - some folks have had to resort to shotgunning all eight with a new set of MC's or Visteons.
Good luck
MGD
#6
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#8
I will try that in the morning. That coil is a brand new coil that I got from Autozone about 2 weeks ago. There is a possibility that I got a bad one. As far as the connection (female end) Is there a way to test the power to it. Multimeter? If there is a break in the wire, where could I find the part # to order a harness?
#9
Ok I swapped the coil to #1 and ran the truck. I still have a miss but I cannot get it to throw a pending code. Last time, to get the code, I held down the brake and held down the gas in gear. You could feel the shudder, so I held it for about 30 sec. This time I cant get the code. I also broke a clip off the #3 coil connection. Has anyone replaced one? Wife keeps telling me to head to the dealership and just buy a new truck. I will be damned if I am giving up this easy.
#11
Finally able to get pending code. p0354 again. Already moved the coil to number 1, so I am assuming that it has to be the connection. Is there a way to test the connector? With the key on, without the engine running, is there power running to the coil? Is there a way to test the conductivity of the wire?
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