donsgolf Posted April 30, 2017 Report Share Posted April 30, 2017 how long do spark plugs last Quote Link to comment Share on other sites More sharing options...
autom8r Posted April 30, 2017 Report Share Posted April 30, 2017 My experiences has been about 60k. Ford says 100k, but you'll start misfiring under load and notice strange behavior in transmission shift patterns. These are the early signs. It is best to changeout the plugs before the gap on them becomes so big that it damages the ECU. It is a relatively simple process for a Sunday mechanic and well documented on this forum, Happy trails. 2 Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted April 30, 2017 Report Share Posted April 30, 2017 Ford garage told me that the recommended changing 100k. As they age the gap gets larger and the draw more curent to fire across. This puts additional load on the coils and the extra heat will eventually cause the coils to fail. 2 Quote Link to comment Share on other sites More sharing options...
macbwt Posted May 1, 2017 Report Share Posted May 1, 2017 100,000 miles but if you are idling a lot and have heavy stop and go traffic I would recommend about 70K miles. Those idle hours and sitting in traffic add up quickly as I am finding out with my wife's Edge in comparing miles of operation vs hours of engine operation. 1 Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted May 1, 2017 Report Share Posted May 1, 2017 Good point, plugs still firing but no milage accumulating. I can see this extending not only to idling but to freeway driving and city traffic as well. (Not much if either around my neck of the woods, but certainly affects millions in California, Florida & metropolitan areas). Quote Link to comment Share on other sites More sharing options...
akirby Posted May 1, 2017 Report Share Posted May 1, 2017 Even without misfires you don't want to leave them in for 100K. Quote Link to comment Share on other sites More sharing options...
macbwt Posted May 2, 2017 Report Share Posted May 2, 2017 Even without misfires you don't want to leave them in for 100K. I do just because I do not want to change plugs that often. I am at 100K highway right now and no misfires are being detected. I am changing them this weekend though. 2 Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted May 5, 2017 Report Share Posted May 5, 2017 Checked my 09 maintenance manual and you are correct, plug change recommended at 90k intervals. Also noticed something else I didn't remember reading, change fluid in the transfer case at 60k (special conditions). Quote Link to comment Share on other sites More sharing options...
akirby Posted May 5, 2017 Report Share Posted May 5, 2017 I do just because I do not want to change plugs that often. I am at 100K highway right now and no misfires are being detected. I am changing them this weekend though. You don't have to change them, just loosen and retighten. 1 Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted May 13, 2017 Report Share Posted May 13, 2017 100,000 miles but if you are idling a lot and have heavy stop and go traffic I would recommend about 70K miles. Those idle hours and sitting in traffic add up quickly as I am finding out with my wife's Edge in comparing miles of operation vs hours of engine operation.Went back and reread the Maintenance Manual for cars subject to long periods of idling and slow driving (such as Taxi or city traffic, or calif freeway, etc.) and the schedule for spark plug replacment officially drops to 60,000 miles. (Along with a shorter transmission drain interval among other things). 3 Quote Link to comment Share on other sites More sharing options...
macbwt Posted May 14, 2017 Report Share Posted May 14, 2017 Went back and reread the Maintenance Manual for cars subject to long periods of idling and slow driving (such as Taxi or city traffic, or calif freeway, etc.) and the schedule for spark plug replacment officially drops to 60,000 miles. (Along with a shorter transmission drain interval among other things). Yep my wife gets new plugs every two years now. She drives 10K miles a year but two years would be like 100K miles. LOL 1 Quote Link to comment Share on other sites More sharing options...
rwf78155 Posted May 14, 2017 Report Share Posted May 14, 2017 Has anyone used titanium plugs or some of the upscale aftermarket plugs and if so whats recommended ? Quote Link to comment Share on other sites More sharing options...
autom8r Posted May 14, 2017 Report Share Posted May 14, 2017 Ford iridium is recommended. Platinum is also available but may not last as long. 2 Quote Link to comment Share on other sites More sharing options...
rwf78155 Posted May 16, 2017 Report Share Posted May 16, 2017 Got a Ford Part # for the iridium plugs ? Quote Link to comment Share on other sites More sharing options...
autom8r Posted May 16, 2017 Report Share Posted May 16, 2017 (edited) Seems my memory is failing. My model year is a 2008. The stock plugs for a 3.5L in 2008 are Motorcraft part number AYFS22FM. They come in a box of 6 under the part number Motorcraft SP411. The stock plugs for my model year is an iridium enhanced fine wire platinum. Not entirely iridium. It seems that there is no 100% iridium Motorcraft plug for the Edge. For your model year (2013) Ford went to strictly platinum. A package of 6 is part number Motorcraft SP-520. The iridium plugs that will fit a 2013 model V6 (and probably out perform the platinum plugs) are: NGK Iridium Ix Spark Plug Part No. 6509 Autolite Iridium XP Spark Plug Part No. XP5363 Denso Iridium TT Spark Plug: ITV20TT Part No. 4719 ACDelco Iridium Spark Plug Part No. 41-988 Denso ITV20 Iridium Power Spark Plug Part No. 5339 Link to advance auto parts and iridium plugs. https://shop.advanceautoparts.com/web/PartSearchCmd?storeId=10151&catalogId=10051&pageId=partTypeList&suggestion=&actionSrc=Form&langId=-1&vehicleIdSearch=629089&vehicle_629089=2013+%3A+Ford+%3A+Edge+Limited+%3A+3.5L+3496CC+V6+FI+VIN%3A+C&vehicle_407724=2008+%3A+Ford+%3A+Edge+Limited+%3A+3.5L+213CI+V6+FI+VIN%3A+C&searchTerm=iridium&searchedFrom=header Sorry for the confusion, Good luck. Edited May 16, 2017 by autom8r 2 Quote Link to comment Share on other sites More sharing options...
macbwt Posted May 16, 2017 Report Share Posted May 16, 2017 Seems my memory is failing. My model year is a 2008. The stock plugs for a 3.5L in 2008 are Motorcraft part number AYFS22FM. They come in a box of 6 under the part number Motorcraft SP411. The stock plugs for my model year is an iridium enhanced fine wire platinum. Not entirely iridium. It seems that there is no 100% iridium Motorcraft plug for the Edge. For your model year (2013) Ford went to strictly platinum. A package of 6 is part number Motorcraft SP-520. The iridium plugs that will fit a 2013 model V6 (and probably out perform the platinum plugs) are: NGK Iridium Ix Spark Plug Part No. 6509 Autolite Iridium XP Spark Plug Part No. XP5363 Denso Iridium TT Spark Plug: ITV20TT Part No. 4719 ACDelco Iridium Spark Plug Part No. 41-988 Denso ITV20 Iridium Power Spark Plug Part No. 5339 Link to advance auto parts and iridium plugs. https://shop.advanceautoparts.com/web/PartSearchCmd?storeId=10151&catalogId=10051&pageId=partTypeList&suggestion=&actionSrc=Form&langId=-1&vehicleIdSearch=629089&vehicle_629089=2013+%3A+Ford+%3A+Edge+Limited+%3A+3.5L+3496CC+V6+FI+VIN%3A+C&vehicle_407724=2008+%3A+Ford+%3A+Edge+Limited+%3A+3.5L+213CI+V6+FI+VIN%3A+C&searchTerm=iridium&searchedFrom=header Sorry for the confusion, Good luck. I have purchased some of the Iridiums and since they are not specific for the Edge I discovered the gaps to be completely wrong so if you purchase iridiums be ready to attempt to gap the plugs. I returned them and went back with the MC plugs for platinum. 100K miles on a platinum plug showed gaps at .059, .061 and the rest were at .062 this is based on the OEM setting of .051 approximately before installed. Really great wear IMO and no need to go with the more costly iridiums. 2 Quote Link to comment Share on other sites More sharing options...
IWRBB Posted May 16, 2017 Report Share Posted May 16, 2017 The benefit of iridium plugs is not necessarily longer life than platinum plugs- it's that you can run a fine point electrode AND still get long life. The iridium plug will perform better from idle to redline than the platinum plug with it's larger diameter electrode. I run NGK Iridium IX plugs in everything, from my weed eater to my 600 HP supercharged Cobra. The Ford iridium plugs are good too. 2 Quote Link to comment Share on other sites More sharing options...
akirby Posted May 16, 2017 Report Share Posted May 16, 2017 You should always gap new plugs yourself just to be safe. 3 Quote Link to comment Share on other sites More sharing options...
macbwt Posted May 18, 2017 Report Share Posted May 18, 2017 You should always gap new plugs yourself just to be safe. I gap mine with a flat blade screw driver and a small hammer. Is that bad? 1 Quote Link to comment Share on other sites More sharing options...
akirby Posted May 18, 2017 Report Share Posted May 18, 2017 I gap mine with a flat blade screw driver and a small hammer. Is that bad? Sledge, ball peen or framing? 2 Quote Link to comment Share on other sites More sharing options...
macbwt Posted May 18, 2017 Report Share Posted May 18, 2017 Sledge, ball peen or framing? Welding chipping hammer. 4 Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted May 19, 2017 Report Share Posted May 19, 2017 I've always used a 12# Buford Model 127YR dead blow with Craftsman H11 chisel to set my plugs on my lawnmower. Find two or three good blows about does it. Three layers of my utility bill envelope will set the gap perfectly at 0.03000213". 3 Quote Link to comment Share on other sites More sharing options...
PaulSchott Posted May 20, 2017 Report Share Posted May 20, 2017 If the gap is too small you can use an emery board to file down the electrode. 1 Quote Link to comment Share on other sites More sharing options...
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