© Copyright 1995 thru 2008 - The Mustang Works™. All Rights Reserved.
MustangWorks.com is designed and hosted by Aero3 Media.
MustangWorks.com is designed and hosted by Aero3 Media.
01-25-2002, 07:02 PM | #1 |
Registered Member
Join Date: Mar 2000
Location: minneapolis, mn
Posts: 158
|
TFI for a 91 auto
I got a notice in the mail about the recall for the Ford TFI. I am wondering what part i have. I have a 91 lx coupe, automatic.
I am wondering if it is the E3EF-12A297-A2A or not. It sounds like a free replacement and ford picks up the tab. I am wondering if there is a better one to get or if i should stick with the same as my current one (what ever that is) or if i should go with the E3EF-12A297-A2A...i have heard this one provides pretty good low end and that seems idea for an automatic tranny. Can i get a replacement at summit. I got some other junk to order from there as well.....i would like to save on shipping if i could.
__________________
1991 LX coupe,AOD, red, 80k, K&N, MAC cat back, MAC off-road X, Autometer Gauges, BBK Ceramic unequals, fully polished upper intake, fuel rails, and egr, working on installing.....MM full length subs, H&R sport springs, MM Lower control arms, MM caster camber plates, bilstein shocks, struts. |
01-26-2002, 11:32 AM | #2 |
Moderator
Join Date: Sep 1998
Location: Grand Rapids, Michigan, USA
Posts: 1,001
|
Well, if you''ve never replaced it, it would be simple as looking at your module and seeing what the Motorcraft part number is. I've never heard of different TFI modules giving you more "low end." A TFI module's job is just to switch current flowing to the coil (or from, if you believe in electron flow theory ), to interpret the signal generated by the hall effect switch, and execute the timing signal from the computer. Theoretically, a longer dwell might give you a hotter/longer duration spark, but on a stock application (or most high performance for that matter) it won't matter all that much at idle because cylinder pressure is at a minimum already.
If I were you, I'd just have the service done, if it's for free and your Mustang qualifies for it. If it doesn't, I'd just replace it with a quality aftermarket module, put some new plug wires on there, and be done with it. The reason I say plug wires is because about 90% of the time, when ignition modules fail, it's related to old or broken wires. The is because all of the current that's supposed to go through the secondary circuit (which kicks the 12V up to 50kV) has no where to go and ends up as a nasty voltage spike at the module. Those tiny transistors won't take all that abuse for too long, hence they stop working when they get hot. Be sure to put a good coating of heat sink compound, NOT DIELECTRIC GREASE on the back of the module before reinstalling, and it should last you for the life of the vehicle...at least that's been my experience. Hope this helps. p.s. If I remember correctly, Ford's fix is just to relocate the module to the fender, as they did on later TFI setups (started with '94 Mustangs). They finally got smart and started mounting them on GIANT heat sinks.
__________________
Capri306, Moderator The Mustang Works Online 1979 Mercury Capri 1987 5.0L Mustang LX Notchback 1993 5.8L Eddie Bauer Bronco |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Which is your favorite general auto parts store? | Fox Body | Blue Oval Lounge | 28 | 12-07-2017 11:18 AM |
1996 Gt Auto To Auto Swap Now It Won't Run In Gear. | the69dr | Modular Madness | 1 | 10-27-2003 08:54 AM |
raced a Supra Twin Turbo | Stang35th | Stang Stories | 63 | 08-23-2003 12:36 AM |
Auto Meter Guage Install Question | jpumpkinn | Windsor Power | 6 | 01-14-2002 02:27 AM |
2000 v6 auto vs. 1987 5.0 auto | 2000 silver auto v6 | Stang Stories | 56 | 03-23-2001 08:59 AM |