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02-07-2011, 06:49 PM
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slut life
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Join Date: Oct 2010
Posts: 3,031
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How To: Replace coil pack
alright its really simple, but in case anyone was wondering i took some pictures and ill give ya a run through.
this is done on a 99 4.0, but i believe all 4.0 rangers are the same, and i would put my money on the 3.0 rangers being basically the same.
what you need:
coil pack (im using an aftermarket one but it is the same installation process)
flat head screwdriver
8mm socket wrench.
HOW TO:
first take your flat head screw driver and pop the little tab on the plug connector off the side of the coil pack.
then remove the connector and take the 4 bolts (one on each corner of the coil pack) out with the 8 mm socket wrench. pull the little silver tab with a wire off to the side once the screw is off.
once those are out squeez the tabs on the spark plug wires and wiggle the wires out one by one. be very sure you dont mix up the order they go, put them into the corresponding holes of the new coil pack.
then when the wires are all plugged into the new coil pack and you made sure not to mix the order up screw the 4 screws back into the holes, make sure to get all 4 started before tightening them up, and make sure the little silver tab gets screwed down with the drivers side front screw. plug the connector back in and start your truck up to make sure everything works.
on a side not i used a screaming demon high performance coil pack, they suggest for optimum power gains that you gap your spark plugs to .065 of an inch for best performance. i had replaced the plugs last week with iridium tipped plugs and gapped them already.
__________________
99 extended cab, 4.0, auto, 33s, 4x4 lifted with some stuff done
98 2wd 2.5, 5 speed, dropped with some stuff done
Last edited by ben10; 02-07-2011 at 06:52 PM.
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02-07-2011, 06:51 PM
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Banned
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Join Date: Mar 2010
Posts: 14,046
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re: How To: Replace coil pack
Nice writeup Ben! Thats just the 4.0 right?
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02-07-2011, 06:51 PM
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slut life
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Join Date: Oct 2010
Posts: 3,031
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re: How To: Replace coil pack
oh yeah i forgot to put that up, good call.
__________________
99 extended cab, 4.0, auto, 33s, 4x4 lifted with some stuff done
98 2wd 2.5, 5 speed, dropped with some stuff done
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02-08-2011, 03:02 AM
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...............
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Join Date: May 2009
Posts: 23,399
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re: How To: Replace coil pack
3.0 Would be identical
Nice write up also
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2005 Edge
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02-08-2011, 04:21 AM
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Banned
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Join Date: Mar 2010
Posts: 14,046
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re: How To: Replace coil pack
Sweet man, 2 birds with one stone Ben, a 3.0 and 4.0 write up! Awesome man!
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02-08-2011, 05:47 AM
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TTB man
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Join Date: Aug 2010
Posts: 1,920
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re: How To: Replace coil pack
Any power increase? Extrememly temped to waste the funds...lol
__________________
1993 Ford Ranger Ext. Cab | stepside | 4x4 | 4.0L | Lifted | 35" BFG KM2s | MT Classic IIs | Dana 35/Disc 8.8 with 4.56's | Duals | Etc
RIP JASON
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02-08-2011, 08:38 AM
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slut life
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Join Date: Oct 2010
Posts: 3,031
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re: How To: Replace coil pack
ha i got mine on sale for like 60 bucks, i havent driven it yet, but ill let you know, it does seem to idle really nice tho.
and thanks for the compliments guys, good feed back makes me wanna do more, i gotta replace a broken leaf spring so ill try to do the same thing on that.
__________________
99 extended cab, 4.0, auto, 33s, 4x4 lifted with some stuff done
98 2wd 2.5, 5 speed, dropped with some stuff done
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02-08-2011, 08:42 AM
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Banned
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Join Date: Mar 2010
Posts: 14,046
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re: How To: Replace coil pack
Quote:
Originally Posted by ben10
ha i got mine on sale for like 60 bucks, i havent driven it yet, but ill let you know, it does seem to idle really nice tho.
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I think I ordered mine at the same time for 60! Did you replace the wires too?
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02-08-2011, 08:51 AM
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TTB man
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Join Date: Aug 2010
Posts: 1,920
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re: How To: Replace coil pack
Where'd u get it for that cheap?!?!?
__________________
1993 Ford Ranger Ext. Cab | stepside | 4x4 | 4.0L | Lifted | 35" BFG KM2s | MT Classic IIs | Dana 35/Disc 8.8 with 4.56's | Duals | Etc
RIP JASON
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02-08-2011, 08:56 AM
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Banned
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Join Date: Mar 2010
Posts: 14,046
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re: How To: Replace coil pack
Clearance from a place called underdog or something like that
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02-08-2011, 09:53 AM
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TTB man
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Join Date: Aug 2010
Posts: 1,920
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re: How To: Replace coil pack
http://www.summitracing.com/parts/DUI-4-0-9096BL/
I found the coil and DUI wires for $188....too much IMO
__________________
1993 Ford Ranger Ext. Cab | stepside | 4x4 | 4.0L | Lifted | 35" BFG KM2s | MT Classic IIs | Dana 35/Disc 8.8 with 4.56's | Duals | Etc
RIP JASON
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02-08-2011, 09:54 AM
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Banned
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Join Date: Mar 2010
Posts: 14,046
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re: How To: Replace coil pack
Yes...too much!
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02-08-2011, 06:08 PM
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slut life
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Join Date: Oct 2010
Posts: 3,031
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re: How To: Replace coil pack
yeah i have almost new wires that are motorcraft, i dont see a need to change them right now since they are 8 mm cores. but yeah the under dog performance ran out of them i think. but if you get it from summit, dont get the hi po wires just get regular 8 mm core wires and you will be fine.
as for if she has more power today it seemed a bit more peppy than normal there are some longer black marks than normal on the street to prove it hahaha but i think the engine
__________________
99 extended cab, 4.0, auto, 33s, 4x4 lifted with some stuff done
98 2wd 2.5, 5 speed, dropped with some stuff done
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02-08-2011, 06:13 PM
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Get Lifted.
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Join Date: Nov 2010
Posts: 6,402
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re: How To: Replace coil pack
cool man
__________________
YZ the way to be!
The Brotherhood!
Mods to come: Camburg entry 6.0 system. FiberwerkX Fenders and bedsides. Tube bumper.
R.I.P. Jeff Ashton. 1992-2011
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02-24-2011, 08:13 PM
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slut life
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Join Date: Oct 2010
Posts: 3,031
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re: How To: Replace coil pack
as for mileage just went out and got gas today, i got 19.7 mpg before i was averaging about 18.5ish so it may have helped out, hard to say seeing as my best before that was 18.9 so maybe just a bit. its not a decision i regret at this point
__________________
99 extended cab, 4.0, auto, 33s, 4x4 lifted with some stuff done
98 2wd 2.5, 5 speed, dropped with some stuff done
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