Service Engine and #3 coil problem
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Joined: Jan 2003
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From: Central Oregon
Service Engine and #3 coil problem
I'm new around this Forum and I know that the plug blowing out problem has been discussed in detail, but I had a problem yesterday that has me puzzled. I have a 2002 F53 - V10 178" wheelbase Class A motorhome.
Took the motorhome out for a test run after installing Gibson Cat-Back exhaust and B&M Transmission temp. gauge. Engine started running rough and then the "Service Engine Soon" light came on.
I pulled into a rest area and connected scanner to OBD connecter. Got code P0353 = #3 coil primary/secondary failure.
Pulled off #3 coil expecting to find plug out, but plug was tight.
Checked coil with ohm meter about 1.5 ohm, same as several others I checked. Reinstalled all coils and turned key on to scan again and clear code. Started engine everything working ok..no light, no missing, no codes! I did notice that the 9/32' hex bolt that holds down the coil was looser than the others. Where the bolt goes through the coil there is a brass insert. Is this a ground for the coil??? or do I need to look further?
There is some great information on this Forum!
Thanks...Ray
Took the motorhome out for a test run after installing Gibson Cat-Back exhaust and B&M Transmission temp. gauge. Engine started running rough and then the "Service Engine Soon" light came on.
I pulled into a rest area and connected scanner to OBD connecter. Got code P0353 = #3 coil primary/secondary failure.
Pulled off #3 coil expecting to find plug out, but plug was tight.
Checked coil with ohm meter about 1.5 ohm, same as several others I checked. Reinstalled all coils and turned key on to scan again and clear code. Started engine everything working ok..no light, no missing, no codes! I did notice that the 9/32' hex bolt that holds down the coil was looser than the others. Where the bolt goes through the coil there is a brass insert. Is this a ground for the coil??? or do I need to look further?
There is some great information on this Forum!
Thanks...Ray
Senior User
Joined: Dec 2001
Posts: 149
Likes: 0
From: Ft.Lauderdale USA
Service Engine and #3 coil problem
I think its a spacer the coils should move a little,I think??
I swapped out my plugs at 100k miles and tore one of my plug boots and had to get a new coil pak....$ 80 bucks...
I thought that the wires with the conectors are something to look at.
twinbulls
I swapped out my plugs at 100k miles and tore one of my plug boots and had to get a new coil pak....$ 80 bucks...
I thought that the wires with the conectors are something to look at.
twinbulls
Senior User
Joined: May 2002
Posts: 312
Likes: 0
From: Oklahoma
Service Engine and #3 coil problem
Twinbulls:
Why did you have to replace the entire coil pack just because you tore the boot? The boots are available by themselves. I should know, I just replaced all ten of mine!
Why did you have to replace the entire coil pack just because you tore the boot? The boots are available by themselves. I should know, I just replaced all ten of mine!
Senior User
Joined: Dec 2001
Posts: 149
Likes: 0
From: Ft.Lauderdale USA
Service Engine and #3 coil problem
Where did you get them????? dealer said ONLY can buy coil pak.
showed me screen with all the parts list on it and I even called a budy who lives in NY and deals in fords. he said they dont sell just the boots. This was last year.
Do you have a part # ?? if so I have a good coil pak that needs a boot..
twinbulls
showed me screen with all the parts list on it and I even called a budy who lives in NY and deals in fords. he said they dont sell just the boots. This was last year.
Do you have a part # ?? if so I have a good coil pak that needs a boot..
twinbulls
Senior User
Joined: May 2002
Posts: 312
Likes: 0
From: Oklahoma
Service Engine and #3 coil problem
TwinBulls:
Let me check for you. I had them replaced at my dealer a couple of weeks ago, and I believe the part number is on my service invoice. I will post it this evening.
Let me check for you. I had them replaced at my dealer a couple of weeks ago, and I believe the part number is on my service invoice. I will post it this evening.
Senior User
Joined: May 2002
Posts: 312
Likes: 0
From: Oklahoma
Service Engine and #3 coil problem
TwinBulls:
Okay, finally found my invoice. Here is the part number for the spark plug boots: F7TZ-12A402-AA
These were $3.55 a piece, ten costing $35.50. If I am not mistaken, these should be what you need. If I can help you any further, let me know!
Okay, finally found my invoice. Here is the part number for the spark plug boots: F7TZ-12A402-AA
These were $3.55 a piece, ten costing $35.50. If I am not mistaken, these should be what you need. If I can help you any further, let me know!
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