coil and plugs ?????
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Tuned
Joined: Jun 2010
Posts: 390
Likes: 5
coil and plugs ?????
I have a 1999 motor home with an F53 chasis ... v10 gas.
I have had two coils go ( which may have taken out the ECM ).
My mechanic wanted to replace all of them ( I had just the two bad ones as I was leaving the next day on a trip ... otherwise I would have done them myself) along with all the plugs.
The coils are original, I replaced the plugs at 75,000 miles ( I now have 110, 000 on it).
So ... rockauto ( I think the coils are DG508 ... I have to verify that ) $42 each.
Ebay, complete set of "no name" .... $75 for all 10!
Rockauto ... "supreme" coils $19 each
MDS, Accel, .... WOW, too many choices!
Any suggestions ??????
Also, any recommendation on plugs ... copper, platinum, iridium, .... autolite, bosch, champion, NGK .....
Way too many choices!
I tried to do a search for reviews but always come up with the same problem .... 75% give 5 stars, 20 % between and 5% one star. This seems to be the story no matter what brand.
Any advice !!!!!!!!!
I just don't want to loose another ECM .... it is obsolete and I had to camp out in a Ford garage during my last vacation while they found an aftermarket unit ... could not get a Ford unit anywhere!
Thanks ..... Mike
I have had two coils go ( which may have taken out the ECM ).
My mechanic wanted to replace all of them ( I had just the two bad ones as I was leaving the next day on a trip ... otherwise I would have done them myself) along with all the plugs.
The coils are original, I replaced the plugs at 75,000 miles ( I now have 110, 000 on it).
So ... rockauto ( I think the coils are DG508 ... I have to verify that ) $42 each.
Ebay, complete set of "no name" .... $75 for all 10!
Rockauto ... "supreme" coils $19 each
MDS, Accel, .... WOW, too many choices!
Any suggestions ??????
Also, any recommendation on plugs ... copper, platinum, iridium, .... autolite, bosch, champion, NGK .....
Way too many choices!
I tried to do a search for reviews but always come up with the same problem .... 75% give 5 stars, 20 % between and 5% one star. This seems to be the story no matter what brand.
Any advice !!!!!!!!!
I just don't want to loose another ECM .... it is obsolete and I had to camp out in a Ford garage during my last vacation while they found an aftermarket unit ... could not get a Ford unit anywhere!
Thanks ..... Mike
Lead Driver
Joined: Mar 2013
Posts: 7,460
Likes: 85
From: Kent Station, WA
Motorcraft coils and plugs. Platinum are good for 100k, however the 50-75k mile interval is probably more reasonable.
There is really no reason to change the coil unless it has failed. Changing the boots and springs is recommended. I would wait until you hit 150k before changing the plugs. Also change you fuel filter and get something to monitor the engine vitals like a scangauge2 or blue tooth dongle with tablet and torque app.
There is really no reason to change the coil unless it has failed. Changing the boots and springs is recommended. I would wait until you hit 150k before changing the plugs. Also change you fuel filter and get something to monitor the engine vitals like a scangauge2 or blue tooth dongle with tablet and torque app.
New User
Joined: Nov 2015
Posts: 24
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When I bought my 99' V10 couple months ago, it had a miss in cyl. #9. The truck has 129,000 miles. Found it had Bosch plugs in it. I assume the previous owner replaed them at 100,000 or so. They looked good, but replaced them with Motorcraft platinum. I did however replace the coil on that cyl. with an Accel coil. So far so good. But if that one poops again, I will go with the Motorcraft coil instead.
Gregg,
Gregg,
Thread Starter
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Tuned
Joined: Jun 2010
Posts: 390
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one more question on coils and plugs
Thanks for all the info in my last post!!!!!!!
So ... I will go with the Motorcraft coils.
I am guessing Rockauto is the cheapest at $42 each.
1) I keep coming up with two numbers .... DG473 and DG508 ... and some sites say they are interchangeable ... which is right????
2) I called Ford. They recommend an SP-479 plug. I asked about a platinum plug. They said not recommended .... why???? Is not a platinum plug better than a standard plug?
Thanks gain ..... Mike
1999 F53 stripped chasis v10
So ... I will go with the Motorcraft coils.
I am guessing Rockauto is the cheapest at $42 each.
1) I keep coming up with two numbers .... DG473 and DG508 ... and some sites say they are interchangeable ... which is right????
2) I called Ford. They recommend an SP-479 plug. I asked about a platinum plug. They said not recommended .... why???? Is not a platinum plug better than a standard plug?
Thanks gain ..... Mike
1999 F53 stripped chasis v10
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Yup. I can help with that. 
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