ignition module

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Jun 25, 2003 | 11:16 PM

aggiebronco

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Joined: Mar 2003

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ignition module

how can i tell if i need to replace my ignition module?

Jun 25, 2003 | 11:37 PM

greystreak92

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Joined: Sep 2002

Posts: 9,182

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From: Gateway to the West

ignition module

In my personal experience, ignition modules just die. I have heard of bad modules manifesting as erratic idle or hard starting especially when warm. But I have only had them just die and the result is no spark...period.

Jun 26, 2003 | 12:44 PM

steve83

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Joined: Nov 2002

Posts: 9,987

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From: Memphis, TN

ignition module

The Haynes manual has a very good detailed procedure to test it using a multimeter.

Jun 26, 2003 | 05:17 PM

WhëëlMå1

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Joined: Oct 2002

Posts: 8,547

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From: MA

ignition module

I had to have the module replaced 5 times in our 89. It always just up and died (most of the time in the dead of summer, far away from my house).

Rich

Jul 1, 2003 | 03:09 AM

Kallie

Senior User

Joined: Jan 2002

Posts: 232

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From: SW Washington, USA

ignition module

I just found out that was a recall on them thru FORD. My mechanic who worked at the local Ford dealship said it was because they failed and when they did they sometimes caused the truck to burn the ground.

Kallie

Jul 1, 2003 | 03:51 AM

Torque1st

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Joined: Sep 2001

Posts: 30,255

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ignition module

The recall is for the TFI ignition module that fits on the distributor. The older fender mount ignition module fails also but the OEM modules seem to hold up well. Buy replacement MotorCarft modules, the other aftermarket modules are junk. Mount the MotorCraft unit on 1/4" spacers to allow cooling air under the module. I don't know of any good fix for the TFI module. I have seen a lot of TFI modules fail due to improper heatsink prep and installation.

The "burning to the ground" problem was an ignition switch problem if I remember right, not the ignition module.

Jul 1, 2003 | 08:17 AM

AlM

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Joined: Mar 2000

Posts: 2,306

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ignition module

here is some more tfi info:
TFI Module Failure Inspection by Autotune
http://www.autotune.com/techtips/ford.html

TFI Relocation (see #10) by the corral
http://www.corral.net/20anngt/speed.htm