Ignition Module location...
Senior User
Joined: Mar 2002
Posts: 152
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Ignition Module location...
I had posted a question regarding problems with my truck starting in the morning and it was determined that it's probably a bad ignition module. My question now is where is it, because now that it's raining in Southern California, it's becoming worse and I need to do it soon, but don't want to try looking for it in the rain (darn truck is too tall to fit in the garage). Where is it located and do I need anything special to replace it? Thanks.
Elder User
Joined: Oct 2002
Posts: 573
Likes: 0
From: Medina, Tn.
Ignition Module location...
What I call an ignition module on my 89 EB w302 and AOD is attached to the distributor housing and or shaft. You will have to take your distributor off or loosen it so that you can turn it and access the screws that hold the module on. You will then need to have a timing light to get it back to specs. What I did was mark my distributor with a knive so I would know where to set it back to and then loosened it, replaced the module and alligned my marks and it ran great. I paid a mechanic to put a light on it just to make me feel better and it was perfectly 10 degrees like it was. This cost me $10. for him to check it.
Hope this helps you a little.
Happy Holidays !:-X12
Hope this helps you a little.
Happy Holidays !:-X12
Senior User
Joined: Mar 2002
Posts: 152
Likes: 0
Ignition Module location...
I thought that was called something else, but I can't remember the name. It controles the advancement of the disrtibutor, but the truck still runs without it, so I think the ignition module is something else. I wish i could remember what that was called though...darn old age of 21...
Elder User
Joined: Oct 2002
Posts: 573
Likes: 0
From: Medina, Tn.
Ignition Module location...
Actually my Mitchell Software says that it is a TFI (Thick Film Integrated) Ignition Module.
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Senior User
Joined: Mar 2002
Posts: 152
Likes: 0
Ignition Module location...
Hmmmmm, but how is it then that my truck will still start with the TFI un-plugged? Now i'm confused. my truck has problems starting on the morning only, especially this morning with the rain and all...but any cold morning will do...it just wont start at all and then all of the sudden it will start and runs fine all day. Could the TFI do that? I thought it only controled the advancement of the distributor...
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Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
Ignition Module location...
[updated:LAST EDITED ON 21-Dec-02 AT 00:48 AM (EST)]The TFI is the ignition module & there's no way the truck will run with it unplugged UNLESS there's an aftermarket ignition system installed with its own crank position sensor. The TFI not only controls the ignition, but it also tells the computer whether or not the engine is running, which is how the computer knows to shut off the fuel pump after a second when the truck doesn't crank. The sensor that it uses is the Profile Ignition Pickup (PIP) which is under the rotor inside the distributor. Unplugging the TFI also disconnects the PIP, so the fuel pump would shut down.
Test your coil & maybe replace it anyway - they're only $30.
Test your coil & maybe replace it anyway - they're only $30.
Junior User
Joined: Jul 2002
Posts: 81
Likes: 0
From: The Rock, BC
Ignition Module location...
[updated:LAST EDITED ON 21-Dec-02 AT 03:11 AM (EST)]what year and engine are we talking about here pioneer ford? Steve83 the early TFI-IV systems didn't have a CPS.
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Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
Ignition Module location...
[updated:LAST EDITED ON 21-Dec-02 AT 11:47 AM (EST)]Yeah, I know EEC-IV trucks don't use a CPS. But some aftermarket ignition systems add their own. That's what I was talking about. That's the only way the engine could keep running with the OE ignition module unplugged.
I assumed he was talking about his "1989 Bronco...351W EFI to a C6 Tranny. 33in. tires, electric fans, mustang alternator, all sorts of electric goodies. "
I assumed he was talking about his "1989 Bronco...351W EFI to a C6 Tranny. 33in. tires, electric fans, mustang alternator, all sorts of electric goodies. "
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