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04 ford escape running too lean and 2 cylinders not firing
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CotyWillett1512
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Jul 13, 2015, 5:55 PM
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04 ford escape running too lean and 2 cylinders not firing
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04 ford escape 3.0 143,000 miles, it was missing so I replaced all spark plugs and found in two of the cylinder holes there was oil but it fixed the missing for a while then it started missing and so I replaced the valve cover gasket and then cranked it up and it was idling rough and the exhaust manifold right before the o2 sensor was gettin cherry red so I replaced the upper and lower Intake manifold gaskets still didn't fix the cherry red exhaust or the rough idle or the dtc for too lean bank 2. Next I checked the spark plugs and the coil packs on bank 2 the #6 cylinder spark plug was wet with gas and fouled out and the #4 was fouled out but couldn't see any gas on it so I replaced the #6 cylinder fuel injector and still found gas on the plug. Next I cranked it and check the # 4 and number #6 cylinder by unhooking when coil pack at and time and the engine rpm didn't change with number 4 or 6 but when I unplugged 5 it almost died, so I tested all 3 coil packs for spark they all were gettin spark. So then I replaced number 4 and 6 spark plugs and cranked it back up and still rough idle so I unplugged each coil pack again one at a time and no change in engine unplugging number 4 and 6. Oh I also replaced all old and worn vaccum hoses and sprayed brake cleaner over the hole engine and couldn't find a leak. Anyone that has idea or suggestion please
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Hammer Time
Ultimate Carjunky
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Jul 13, 2015, 7:00 PM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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You're going to have to do some testing to verify this but I have have a few of these with coil drivers burnt out in the computer. If that is determined to be the case, the coils would have to be changed also.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Jul 13, 2015, 7:01 PM)
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CotyWillett1512
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Jul 13, 2015, 7:23 PM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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Okay how would I test it? And what exactly do you mean by burnt out in the computer? And could this be making it run too lean? And make the exhaust manifold red hott?
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Hammer Time
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Jul 14, 2015, 1:57 AM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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You have to use a noid light to test for ground pulse coming from the computer for those particular coils. Resolve the misfires before you get concerned with the lean code.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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CotyWillett1512
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Jul 14, 2015, 5:46 AM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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Okay I'll check that out and get back with u hopefully I can find the problem doing this, thanx
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Discretesignals
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Jul 14, 2015, 6:06 AM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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Lean condition isn't going to cause your exhaust manifold to glow. That is probably due to a misfire or timing problem. Misfires are going to cause the O2 sensor to report a lean state because the cylinder(s) that isn't firing won't consume the oxygen. If this is a 3.0L be sure you have the ignition coils plug in correctly. It is easy to to get the coil connectors swapped on those or it could have faulty coils. Really don't think an injector is going to cause that because with a no fuel misfire there isn't going to be raw fuel getting into the exhaust system.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jul 14, 2015, 6:07 AM)
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Hammer Time
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Jul 14, 2015, 6:34 AM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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I've had at least 3 Escapes with 3.0 with burnt coil drivers. That seems to be the only vehicle that it's common.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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CotyWillett1512
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Jul 14, 2015, 7:23 AM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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I did the screwdriver test on the two that aren't firing and they both have spark...
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Tom Greenleaf
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Jul 14, 2015, 7:32 AM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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A note on that: That doesn't mean plug is firing but a good clue. If plug has been fuel soaked enough it can accept the spark but ground out thru raw fuel without firing. Your call when all things seem OK enough put one or more in those that don't fire with ones that do now and see what you get,
T
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Hammer Time
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Jul 14, 2015, 7:33 AM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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You could do a smoke test to look for a major vacuum leak but raw fuel is getting into the converter from somewhere to make it cherry red. Extreme lean could give you a lean misfire. Make sure that spark could jump a gap of about an inch.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Discretesignals
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Jul 14, 2015, 7:34 AM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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The spark needs to be able to jump at least a 3/4 inch gap. If you did the valve covers, you could have gotten the outer coil connectors swapped. It is really easy to do because the harness can be reversed.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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CotyWillett1512
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Jul 14, 2015, 11:06 AM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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I don't think I switched the coils I didn't disconnect the coils and each one is only long enough to fit In each cylinder but I'll check that again, and yes that's a good idea I need to do the smoke test, I tried sprayin brake cleaner all over and nothing, and the spark was about an inch I'll check that again also.
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CotyWillett1512
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Jul 14, 2015, 11:09 AM
Post #13 of 30
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Re: 04 ford escape running too lean and 2 cylinders not firing
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Also if the spark is not about an inch do I replace the just the coils or what would be the next step if that was the problem?
(This post was edited by CotyWillett1512 on Jul 14, 2015, 11:11 AM)
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Hammer Time
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Jul 14, 2015, 12:11 PM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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If it's not at least a half in I would replace it. A half inch jump shouldn't be misfiring.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
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Jul 14, 2015, 1:00 PM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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Just notes on plugs actually firing: You must know spark is enough has been discussed. What you said up top is new plugs solved it for a short while. Fine but spark if good (needs this testing suggested) still seeks "the path of least resistance" which isn't necessarily jumping the electrodes inside cylinder.
Under compression - that alone is more resistance for spark to seek ground another way. Plugs when wet can (not all but some really do) wet the porcelain such that it conducts electricity at these high voltages and takes the spark to ground but doesn't jump the gap and you can't see that it's by default when everything else is right but history of wet plugs. I've seen new plugs in wet cylinders also find ground without making a spark till real dry. Porcelain does not air dry so well even when a wet plug looks dry they can still fail.
Pic of this may not show dag nabbit but it does happen. Lots to me with two stroke stuff like chainsaws and only heating up plug real hot works. See if this dang pic show.........
So far it's there? See the larger red arrows pointing up to ground in that graphic of what they can do. Everything else must test right first then this is the last item that still can stop the show is the point. I suggested take a known one working and swap. If even dried plug doesn't work in the other working cylinder now it's the plug itself by all odds,
T
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Discretesignals
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Jul 14, 2015, 3:17 PM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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You had to move the coil and the harnesses to change the valve cover gasket. Even though you left the coils plugs in, it is easy to have coils swapped.
Look at the coil connector wire colors. #4 wires should be white/violet and white/pink. #6 wires should be white/violet and light green/yellow.
Watch this video: ( go to 34 min mark to see the cause)
https://www.youtube.com/watch?v=XfOkTAJOi74
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jul 14, 2015, 3:24 PM)
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CotyWillett1512
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Jul 15, 2015, 6:13 AM
Post #17 of 30
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Re: 04 ford escape running too lean and 2 cylinders not firing
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^^^ you were right! I switched the coils around and now it runs perfect again that's all it was, thanx guys I appreciate all y'all's help and input.
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Hammer Time
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Jul 15, 2015, 6:19 AM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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Lots of gold stars for DS on that catch.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Discretesignals
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Jul 15, 2015, 3:53 PM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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Glad to see you got it figured out. Gosh, I've never seen that many stars before on here. Thanks you for the accolades, but if it wasn't for someone else who ran into this in the past, it probably would have been a difficult one to figure out. Thank you for following up on this. 
Edit: reopened thread
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jul 15, 2015, 4:46 PM)
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CotyWillett1512
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Jul 16, 2015, 5:49 AM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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Okay here's the next problem it started missing when stopped at a red light and it has a lack of power especially when I get up to 50 and then at 65 mph it runs at about 3000 rpm and won't go any faster and then this morning I start to drive it and it completely loss power at 50mph and the oil light came on the OD light came on and the battery light came on and it started shaking and idling bad so I shut it off and left it on the side if the road. Could it have some kind of restriction or in a limp mode?
(This post was edited by CotyWillett1512 on Jul 16, 2015, 6:03 AM)
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Discretesignals
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Jul 16, 2015, 3:04 PM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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There should be trouble codes stored. Check to see what they are. Low system voltage from an alternator not producing power can cause weird things like that as the battery dies, so make sure the battery is good and the alternator is charging.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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CotyWillett1512
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Jul 16, 2015, 5:41 PM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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Okay so I start it up when I get home from work and when I push the gas pedal It makes a loud squealing noise just when I engage the throttle. Also I took off the coolant overfill bottle cap off and let it run and it started to bubble out the top, so it's definitely a head gasket blown right? Or could it be something else
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CotyWillett1512
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Jul 16, 2015, 5:47 PM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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Also yes I need to check the codes but I don't have a code reader and I don't think it will make it to a part store I live 15 mins from town
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Discretesignals
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Jul 17, 2015, 6:50 PM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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Where is the squealing noise coming from? How is the water pump belt and tensioner?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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CotyWillett1512
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Jul 18, 2015, 9:31 PM
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Re: 04 ford escape running too lean and 2 cylinders not firing
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It sounds like it's coming from the middle if the engine it sounds like it's sucking in a lot of air when I accelerate, all the belts and tensioner looked okay I'll check again, but does it sound like a head gasket could be blown?
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