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Old 11-28-2013, 15:34   #1 (permalink)
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2010 Ford Escape 2.5l 4 Cyl Cylinder 1 Misfire Code

Hi, I have a 2010 Escape 4 cyl with a cylinder 1 misfire code. 100,000 miles and code just came on. Vibration at about 50 and 70 mph and when in gear and foot on brake. Changed plugs - same code, swapped coil 1 with 4 - same code, swapped injector 1 with 4 - same code. Not sure where to go from here. Egr and intake issues would show up on other cylinders, not just cylinder one misfire I would think. Didnt know if anybody else has had the same issue. Any help would be great, thanks.
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Old 11-28-2013, 19:24   #2 (permalink)
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Re: 2010 Ford Escape 2.5l 4 Cyl Cylinder 1 Misfire Code

If your misfire is continuously on the same cylinder, you may have an intake manifold gasket leak. How's your coolant level?
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Old 11-29-2013, 04:33   #3 (permalink)
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Re: 2010 Ford Escape 2.5l 4 Cyl Cylinder 1 Misfire Code

Have noticed any change in coolant level, is there any simple tests to determine if the intake manifold is leaking?
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Old 11-29-2013, 05:31   #4 (permalink)
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Re: 2010 Ford Escape 2.5l 4 Cyl Cylinder 1 Misfire Code

I'm assuming you cleared the code after each part change,swap? Any other codes with it?


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Old 11-29-2013, 06:20   #5 (permalink)
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Re: 2010 Ford Escape 2.5l 4 Cyl Cylinder 1 Misfire Code

Sorry, Haven't noticed any change in coolant level. I did get a random cylinder misfire code once that is permanent. Yes I cleared the code after every swap.
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Old 11-29-2013, 10:31   #6 (permalink)
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Re: 2010 Ford Escape 2.5l 4 Cyl Cylinder 1 Misfire Code

Doesn't take much of a leak to cause a misfire. Try a pressure test:

How to Pressure Test an Engine Coolant System | eHow

It will require some special tooling.
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Old 11-29-2013, 17:30   #7 (permalink)
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Re: 2010 Ford Escape 2.5l 4 Cyl Cylinder 1 Misfire Code

Are you clearing the codes after each fix you are doing? Also at idle it doesn't do it right just brake torque or under load up a hill light tip in of throttle?
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Old 11-30-2013, 04:58   #8 (permalink)
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Re: 2010 Ford Escape 2.5l 4 Cyl Cylinder 1 Misfire Code

Yes I am clearing the code, vibration is when brake torquing or engine is under load when trans upshifts.
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Old 11-30-2013, 06:05   #9 (permalink)
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Re: 2010 Ford Escape 2.5l 4 Cyl Cylinder 1 Misfire Code

Something is getting put back in the wrong place here. The 2.5l is a very robust engine. Base engine is not likely. You getting a p0301 correct? You have a secondary ignition miss. You sure you didn't mix up the coils? Also you put in new plugs right?
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Old 11-30-2013, 10:50   #10 (permalink)
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Re: 2010 Ford Escape 2.5l 4 Cyl Cylinder 1 Misfire Code

Yes I am getting a cyl 1 misfire code. Changed plugs. You cannot mix cyl 1 with cyl 2 coil wires. Still getting same cyl 1 misfire after swapping coils and fuel injectors. Vibration is noticable when driving at about 50 when trans shifts and rpms are low. Throttle engine while doing 50 vibration goes away.
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