Intermittent Misfire?
#1
Intermittent Misfire?
Hello everybody. I am having an issue with my 2005 Expedition 5.4L 3V. At a stop while in gear it will shake and when I start to accelerate it spits and sputters for about 500ft then clears up and runs great. It has thrown 2 codes, P0351 and P0356, so I replaced all 8 COPs and Plugs(broke 2 of them) but this didn't fix the issue and the same codes came back. I have tested the harness for COP #1 & #6 and I am getting 12-volts when the key is ON but the engine is not running. Any ideas would be greatly appreciated!!
Some additional info: 77,000 miles, new coils are Accel 140033, new plugs are Champion 7989, truck idles fine in Neutral or Park
Some additional info: 77,000 miles, new coils are Accel 140033, new plugs are Champion 7989, truck idles fine in Neutral or Park
#2
Hello everybody. I am having an issue with my 2005 Expedition 5.4L 3V. At a stop while in gear it will shake and when I start to accelerate it spits and sputters for about 500ft then clears up and runs great. It has thrown 2 codes, P0351 and P0356, so I replaced all 8 COPs and Plugs(broke 2 of them) but this didn't fix the issue and the same codes came back. I have tested the harness for COP #1 & #6 and I am getting 12-volts when the key is ON but the engine is not running. Any ideas would be greatly appreciated!!
Some additional info: 77,000 miles, new coils are Accel 140033, new plugs are Champion 7989, truck idles fine in Neutral or Park
Some additional info: 77,000 miles, new coils are Accel 140033, new plugs are Champion 7989, truck idles fine in Neutral or Park
Start with the basics swap coils with known good ones then injectors. if the miss remains pull the plug then compression test..
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Well yesterday it started doing it even while sitting in Neutral and I started to notice a slight gasoline smell. I think I'm going to let the professionals handle it from here, to the dealer we go.
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#9
Any damage caused by injector failure is covered by ford for 10/120 on the 05 year. If your sure its injectors let ford fix it make sure they check everything else the cats etc. At some point if I had an 05 I'd want those injectors out. I dont think Ford covers that oddly enough. They would rather replace the damaged components then the injectors..
#10
Well, the dealership should replace the injectors free. I don't know what their going say when they see the Champions in their lol.
He needs to bring in the injector letter, so the service rep knows the customer/owner is aware, -right from the start. Might prevent a hassle about the bill.
#12
I just noticed he's running Champion's. Mannnn...
Well, the dealership should replace the injectors free. I don't know what their going say when they see the Champions in their lol.
He needs to bring in the injector letter, so the service rep knows the customer/owner is aware, -right from the start. Might prevent a hassle about the bill.
Well, the dealership should replace the injectors free. I don't know what their going say when they see the Champions in their lol.
He needs to bring in the injector letter, so the service rep knows the customer/owner is aware, -right from the start. Might prevent a hassle about the bill.
Let us know how the Champions end up working out..
#13
Yup, I read some comments about the Champions after I bought them but figured that the problem would move cylinders or at least go away for a little while.
I'll get that injector letter printed out to bring in with me, but do you guys think that's what is causing my problem or is that just something else to get taken care of while it's there?
I'll get that injector letter printed out to bring in with me, but do you guys think that's what is causing my problem or is that just something else to get taken care of while it's there?
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