Ignition coil failure

Tiny
SATURNTECH9
  • MECHANIC
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As far as other possible causes you could have a bad spark plug injector wiring or engine computerWithout knowing what was tested or done it's hard to say.
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Thursday, September 5th, 2019 AT 11:28 AM (Merged)
Tiny
KKELSO555
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Okay this is actually been very helpful thank you much
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Thursday, September 5th, 2019 AT 11:28 AM (Merged)
Tiny
SATURNTECH9
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Your welcome glad I could help you out
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Thursday, September 5th, 2019 AT 11:28 AM (Merged)
Tiny
PENNYSHEAVEN
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  • 2005 FORD ESCAPE
  • 6 CYL
  • AWD
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My Escape had the same problems I am reading about - on trip home from upstate NY to LI my Escape felt like it was running on 4 cyl. Check engine light came on. Made it home but next day died and all lights lit up. Got it to a mechanic - said needed to replace all Coils - $900.00. I had it towed again to my mechanic and he said 4 coils are bad but TSB says to replace all and computer may be fried. I now remember that my backup sensor has been going off for no reason - cleaned off sensors. My mechanic can't guarantee that computer doesn't need to be replaced and doesn't want to start work until he finds out if there is a recall or warranty of some sort - since this is a MAJOR issue with 2005, 2006 Escape and Mariners. I am now out of car for the week, can't afford to rent car and pay for repair. I wish I had looked at this website before my warranty ran out - I would have renewed it.
Can you help me? Service Mgr was not available at the 2 Ford dealerships I have had service at.
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Thursday, September 5th, 2019 AT 11:28 AM (Merged)
Tiny
2CP-ARCHIVES
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  • 2004 FORD ESCAPE
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How do I figure out which ignition coil is bad I already had one replaced and think I have another one going bad
and cant afford to pay a mechanic twice so close together.
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Thursday, September 5th, 2019 AT 11:28 AM (Merged)
Tiny
MARTY POND
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  • 2001 FORD ESCAPE
  • 6 CYL
  • 4WD
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How much should it cost to replace #5, and 6 coil as well as plugs.

The guy wants$735.
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Thursday, September 5th, 2019 AT 11:28 AM (Merged)
Tiny
BMRFIXIT
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WARRANTY INFORMATION
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage.
IMPORTANT:Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part..

3.0L ENGINE MIL ON WITH DTCS P0351 THROUGH P0356 - MULTIPLE COIL PRIMARY CIRCUIT
TECHNICAL SERVICE BULLETIN
Reference Number(s): 09-2-6, Date of Issue: February 9, 2009
FORD:2005-2006 Escape
MERCURY:2005-2006 Mariner
Superceded Bulletin(s): 05-11-1, Date of Issue: June 13, 2005
Related Ref Number(s): 05-11-1, 09-2-6
ARTICLE BEGINNING
ISSUE
NOTE:This article supersedes TSB 05-11-1 to update the Service Procedure and Part List.

Some 2005-2006 Escape/Mariner vehicles equipped with a 3.0L engine, may exhibit a malfunction indicator lamp (MIL) on with two or more diagnostic trouble codes (DTCs) for coil on plug (COP) primary circuit faults (P0351 through P0356). This may be due to the spark plugs causing RF interference with the powertrain control module (PCM), resulting in damage to the PCM and COPs.
ACTION
Refer to the following Service Procedure to correct the condition.
SERVICE PROCEDURE
Connect the Ford Integrated Diagnostic System (IDS) service tool to the data link connector (DLC). Identify the vehicle and perform a key on engine running (KOER) test.
If only one (1) coil circuit primary DTC (P035x) is present, follow Procedure A.
If there are two (2) or more coil circuit primary DTCs (P035x-P035x), follow Procedure B.
PROCEDURE A
Remove any spark plug and inspect for a 2-digit date code (Fig. 1). If the date code is not present, replace all six (6) spark plugs.
Continue with normal Powertrain Controls/Emissions Diagnosis (PC/ED) diagnostics for the DTC.
Fig. 1: Date Code On Spark Plug


https://www.2carpros.com/forum/automotive_pictures/99387_Graphic1_526.jpg


PROCEDURE B
Remove any spark plug and inspect for a 2-digit date code (Fig. 1). If the date code is not present, replace all six (6) spark plugs.
Replace all six (6) COPs.
Check PCM internal coil driver functionality by running the Oscilloscope Escape PCM Driver Test available on IDS version B58 or later.
Using IDS select
Toolbox.
Oscilloscope tools.
Escape PCM Driver Test - follow on screen instructions.
NOTE:THE OSCILLOSCOPE TEST TO CHECK PCM INTERNAL COIL DRIVER FUNCTIONALITY MUST BE PERFORMED PRIOR TO REPLACING THE PCM.

Replace PCM only if coil driver funcionality fails in the oscilloscope test.
Program the passive anti-theft system (PATS) keys if PCM is replaced.
If the procedure has not corrected the condition, follow normal PC/ED diagnostics for DTC.
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Thursday, September 5th, 2019 AT 11:28 AM (Merged)
Tiny
OBXAUTOMEDIC
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Hi Marty,

The price quoted is about right for a shop. At the shop you will be paying about $150 - $200 per Coil and about $12 - $16 per plug plus the labor.

If you feel you can do the job you can purchase the Coils for about $70 - $90 each and the plug for about $5 - $8 each. Also you should use the OE (Original Equipment) or OEE (Original Equipment Equivalent) on the plugs.

.
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Thursday, September 5th, 2019 AT 11:28 AM (Merged)
Tiny
CJ MEDEVAC
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Is it showing a check engine light?

If so, a popular auto parts store most likely will code it for free

Write down the exact code numbers and return here. Yes, listen to "their" diagnosis. But get the code numbers!

Our '03 escape skipped for a few months before I figured out it was a coil pack

. The check engine light did not come on for me either

I might still be able to help you find the one causing you grief. Should it not show up in a code

Are you sorta a decent diy mechanic.A 3.0l may be a little involved, but not hard. Should it be one of the 3 in the back

Your turn----talk to me 'fore you jump in!

The medic
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Thursday, September 5th, 2019 AT 11:28 AM (Merged)
Tiny
LCCNIC
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  • 2002 FORD ESCAPE
  • 6 CYL
  • 2WD
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I recently had 1 ignition coil and all my spark plugs replaced on my 02 escape. 4 days later the engine was running rough and I had to have another ignition coil replaced. When I got the car back it was running normally, but by the next day it is not running rough but definitely is not as smooth and the steering wheel to vibrate. This is only noticeable when I'm at a stop light or idling. Also the brakes seem to sort of skid or stutter when I brake sometimes (not all the time, and the car still stops ok). When my car was in the shop they said the brakes and everything looked good, but since I had to get 2 ignition coils replaced in a week and its still not running perfectly, I don't really trust their opinion. Could these be signs that my other coils are going to go out soon or something else?
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Thursday, September 5th, 2019 AT 11:28 AM (Merged)
Tiny
DAVE H
  • MECHANIC
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I alway's advise my customers to replace all coils at the same time. They tend to break down in sequence and your back in the shop every week. I would have all the coils replaced !
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Thursday, September 5th, 2019 AT 11:28 AM (Merged)
Tiny
TOM MORAN
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  • 2001 FORD ESCAPE
  • 6 CYL
  • 4WD
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Can you replace the #2coil without taking the airintake off
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Thursday, September 5th, 2019 AT 11:29 AM (Merged)
Tiny
2CARPRO JACK
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Mitchell doesnt say anythign about removing the air intake system to replace the plugs or coils, so without actually seeing it I would say no. But sometimes they are vague as to actual procedures. If it looks lie it would be easier for you to go that route, I would. Sometimes the engineers expect you to get your hands into places they werent meant to fit
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Thursday, September 5th, 2019 AT 11:29 AM (Merged)
Tiny
WESALAUZEN
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No, unfortunately you can't replace it without pulling the intake manifold. The rear three plugs and coils (1, 2 and 3) are not removable on the 3.0 v6 engine without removing the upper intake manifold plenum.

I did this on my escape this past summer, it really isn't all that difficult and the gaskets are only a few dollars. Buy a Haynes manual. It will take you through it. You do need a torque wrench (in. Lbs) and the correct torque spec and sequence (in the manual) to get it back together correctly, but it's not too difficult.

Make sure the engine is completely cool before removing the plugs though. This is extremely important because you can actually twist the aluminum threads (from the head) out with the plug if the engine is warm or hot when you do this according to my repair manual.
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Thursday, September 5th, 2019 AT 11:29 AM (Merged)
Tiny
IAN55
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Found these video/ resources useful , but not to be taken exact :
https://www.youtube.com/watch?v=ypp_P9GeeIw
https://www.youtube.com/watch?v=Epl-keSFSFs
I also used this company in part of my isolation :
https://circuitboardmedics.com/2005-2006-ford-mercury-and-mazda-exchange-pcm/
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Friday, September 6th, 2019 AT 8:34 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Excellent addition to this thread! Please feel free to help out whenever you are on the site :)
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Saturday, September 7th, 2019 AT 1:04 PM

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