snookumsthacat wrote:Hey guys, so I just bought an escape 3.0l with 165k miles. I've been working on it for a week trying to figure out what is going on with my cylinder #4. It looks like the previous owner tried to troubleshoot it because that particular cylinder is the only one that doesn't have a motorcraft coil pack. ( I noticed this while I was replacing it with an advance auto parts coil pack). So far I've changed the #4 coil pack, motorcraft platinum spark plugs, felpro upper and lower intake manifold gaskets, purolator pcv valve, added seafoam fuel injector cleaner, and changed some rubber vacuum tube on the pcv valve that seemed a little loose and old. After all of that, I don't even notice a difference in it's performance. The engine shakes on idle and after resetting the codes, I continue to get the cylinder 4 misfire code. I'm starting to wonder if its one of the harness connections or the 2 wires leading from the coil pack.
Does anybody have any experience with ignition wiring issues on the v6 escape or does it seem like I'm going in the right direction?
Thanks in advance.
Headed in the right direction for sure!
First off, have you ran an OBD-II scanner to see what codes come up? If you have the codes, post them!
Next, have you tried disconnecting the battery overnight? That fixed mine a couple times when I was having issues.
What brand of COP did you put on? I know a few people that put on a single Accel and still had issues until they changed all 6 to same brand.
Did you just change the coil, or use a whole new with boot + spring? If you just changed the coil, might want to check the spring for rust.
The Escape COP's are notorious for giving problems due to that the tops get a slight crack at the top which moisture gets in and fouls them until they dry out. A few people have solved their issues by taking off all 6 and checking them for cracks, and using (not exactly sure which brand/kind) but like hobby glue or epoxy to seal them up after heating them with a hair dryer and cleaning them.
Hope this helps a little!
snookumsthacat wrote:It has the new spring, boot, and coil included as a whole unit. The old one I took out had an expanded boot that was melted to the spark plug so that was destroyed in the process of removing it.
jbone2470 wrote:I was gonna say swap the #4 with #5 coil and see if code follows and still runs crappy. The code u got was a p0304 if it was the #4 cyl.
Also did ya double check the spark plug gaps..Those coil harness plugs can get dirty or malfunction.Check the connection carefully.
If all that doesn't work then try check the injector,did ya replace the o rings while u had them off? If all else fails then a compression test leak down test might be in order to see what is the problem.Hopefully not valves.
Did you take off the whole harness off all 3 coils? if so did ya put it back on backwards? I interested in the outcome.keep posted.
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