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  #1  
Old 02-07-2011, 05:49 PM
slut life
 
Join Date: Oct 2010
Posts: 2,930
Default 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.
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99 extended cab, 4.0, auto

k&n filter, airbox mod, screamin demon coil pack.

cranked t-bars, add a leaf springs out back, 3 inch body lift, 33 BFG KM2s on black steel wheels.

kenwood kdc-x794 ipod ready deck, 600 watt amp, rockford fosgate 10 inch P1 sub, dynomatting the cab as time permits about 25% done so far.

5k HIDs with clear lights, fog light mod.

Last edited by ben10; 02-07-2011 at 05:52 PM.
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  #2  
Old 02-07-2011, 05:51 PM
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Join Date: Mar 2010
Posts: 14,067
Default Re: replace coil pack

Nice writeup Ben! Thats just the 4.0 right?
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  #3  
Old 02-07-2011, 05:51 PM
slut life
 
Join Date: Oct 2010
Posts: 2,930
Default Re: replace coil pack

oh yeah i forgot to put that up, good call.
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99 extended cab, 4.0, auto

k&n filter, airbox mod, screamin demon coil pack.

cranked t-bars, add a leaf springs out back, 3 inch body lift, 33 BFG KM2s on black steel wheels.

kenwood kdc-x794 ipod ready deck, 600 watt amp, rockford fosgate 10 inch P1 sub, dynomatting the cab as time permits about 25% done so far.

5k HIDs with clear lights, fog light mod.
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  #4  
Old 02-08-2011, 02:02 AM
STL STL is offline
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Join Date: May 2009
Posts: 22,162
Default Re: replace coil pack

3.0 Would be identical

Nice write up also
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  #5  
Old 02-08-2011, 03:21 AM
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Default Re: 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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  #6  
Old 02-08-2011, 04:47 AM
TTB man
 
Join Date: Aug 2010
Posts: 1,923
Default Re: replace coil pack

Any power increase? Extrememly temped to waste the funds...lol
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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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  #7  
Old 02-08-2011, 07:38 AM
slut life
 
Join Date: Oct 2010
Posts: 2,930
Default Re: 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.
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99 extended cab, 4.0, auto

k&n filter, airbox mod, screamin demon coil pack.

cranked t-bars, add a leaf springs out back, 3 inch body lift, 33 BFG KM2s on black steel wheels.

kenwood kdc-x794 ipod ready deck, 600 watt amp, rockford fosgate 10 inch P1 sub, dynomatting the cab as time permits about 25% done so far.

5k HIDs with clear lights, fog light mod.
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  #8  
Old 02-08-2011, 07:42 AM
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Posts: 14,067
Default Re: replace coil pack

Quote:
Originally Posted by ben10 View Post
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.
I think I ordered mine at the same time for 60! Did you replace the wires too?
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  #9  
Old 02-08-2011, 07:51 AM
TTB man
 
Join Date: Aug 2010
Posts: 1,923
Default Re: replace coil pack

Where'd u get it for that cheap?!?!?
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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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  #10  
Old 02-08-2011, 07:56 AM
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Posts: 14,067
Default Re: replace coil pack

Clearance from a place called underdog or something like that
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  #11  
Old 02-08-2011, 08:53 AM
TTB man
 
Join Date: Aug 2010
Posts: 1,923
Default Re: replace coil pack

http://www.summitracing.com/parts/DUI-4-0-9096BL/

I found the coil and DUI wires for $188....too much IMO
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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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  #12  
Old 02-08-2011, 08:54 AM
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Posts: 14,067
Default Re: replace coil pack

Yes...too much!
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  #13  
Old 02-08-2011, 05:08 PM
slut life
 
Join Date: Oct 2010
Posts: 2,930
Default Re: 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

k&n filter, airbox mod, screamin demon coil pack.

cranked t-bars, add a leaf springs out back, 3 inch body lift, 33 BFG KM2s on black steel wheels.

kenwood kdc-x794 ipod ready deck, 600 watt amp, rockford fosgate 10 inch P1 sub, dynomatting the cab as time permits about 25% done so far.

5k HIDs with clear lights, fog light mod.
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  #14  
Old 02-08-2011, 05:13 PM
Get Lifted.
 
Join Date: Nov 2010
Posts: 6,405
Default Re: replace coil pack

cool man
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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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  #15  
Old 02-24-2011, 07:13 PM
slut life
 
Join Date: Oct 2010
Posts: 2,930
Default Re: 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

k&n filter, airbox mod, screamin demon coil pack.

cranked t-bars, add a leaf springs out back, 3 inch body lift, 33 BFG KM2s on black steel wheels.

kenwood kdc-x794 ipod ready deck, 600 watt amp, rockford fosgate 10 inch P1 sub, dynomatting the cab as time permits about 25% done so far.

5k HIDs with clear lights, fog light mod.
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