2005 Ford Escape with a V6. Engime starts but runs very rough and dies. It has 4 error codes that the reader found; P0351 P0352 P0354 P0355. The engine ran fine then suddenly developed the problem. It's hard to imagine that 4 out of 6 coils failed at one time.
Kind of unusual, but checking resistance is quick check to rule it out. You could also have something going on that's taking them out. Not sure of the value, but they should be a near match to the 2 good ones. Is it possible that they're getting wet?
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found the following service bulletin
*P0351, P0352, P0353, P0354, P0355, P0356 Coil On Plug Primary Circuit Failure
Ford has issued a TSB (TSB 09-2-6) for owners of 2005-06 Ford Escapes and Mercury Mariners with the 3.0-liter engine may find a Check Engine light with the trouble codes above. Ford has discovered problems with factory installed spark plugs that have poor insulating properties. These plugs can allow radio frequency (RF) interference that can damage ignition coils and even modules. If you see just one of the above trouble codes, immediately remove the spark plug for that cylinder and look for a two-digit alpha-numeric code on the plug’s porcelain insulator. If the code isn’t shown, replace the plug with a revised plug (AGSF-32W-M1). Then clear the trouble code and replace the coil-on-plug ignition coil.
However, if you’re getting multiple trouble codes, start again by checking for the date code on the plug. If it’s not there, replace all the plugs. Then clear the trouble codes and drive the vehicle. If you get multiple trouble codes again, you may have to replace the ignition module.
Thank you for the responses. I did find the same bulletin as you did. The vehicle has had 3 coils burn and the computer has been changed about 2 years ago, I think the plugs were changed too. This is my stepdaughter's car and I'm trying to get info from her on when and what was done. <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>
What I have found out on my research is it can be as simple as a broken ground wire or as bad as having to replace all the plugs, coils and the computer. I have decided that it is a bit beyond what I have time and equipment to take on. I had it towed to a shop that has always been fair to me, we need to figure on how we are going to pay for it all, she doesn't have a lot (recently divorced). I will post what repairs it takes to fix in hopes it will help someone else.<o:p></o:p>
The Escape was put on the a scope this morning and the same error codes came up. The mechanic swaped two of the coils and the same codes came up, no change. Ford's procedures are to change the PCM then Plugs then coils. I'm looking for the PCM now. I will keep you up to date.
Another update; I had all the plugs and coils changed at the shop that looked at the Escape. The computer needed to be flashed but only a Ford dealer has the equipment needed (at least around here). The Ford dealer where the car was purchased refused to do the flash on an after market PCM, they would only flash a Ford PCM they installed. They would not install a Ford PCM unless all the coils and plugs were also Ford parts. The cost of Ford parts would be; $almost 1,200.00 for PCM, $200.00 each for the 6 coils and $10.00 each for the plugs, with labor, around $3,500.00. I know the service manager and gave him a call; he told the tech to DO THE FLASH on my PCM. Parts; PCM $270.00 , Coils $70.00 each, plugs $3.00 each, Intake gasket set $10.00. Labor; $200.00 for plugs & coils, $55.00 towing to dealer, $225.00 for the flash. Total so far $1,220.00. After all the work done, it has no power. My step daughter drove the car around 4 miles when the PCM went while running on 2 of the 6 cyl., raw fuel flooded the cats and fried them (3 cats total). Dealler wants over $3,000.00 to change them. I found new cats on-line for around $750.00 for all 3 and could have them changed for another $150.00. Her father decided to step in and have them changed @ Firestone, I have no idea how much they are going to charge but he said he would pay the bill.
The car is worth around $4,000.00 and the dealer would have no problem charging $6,000.00 - $7,000.00 for repairs! As much as I diliked R.S.Logan's comment "This is the reason people are buying Asian car", I have to agree, we are probably trade in the Escape and looking at a Honda to replace it. I'm looking at a GMC truck to replace my Ford F150 and a Nissan to replace my Taurus.
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