HEI distributor
Fleet Owner
Joined: Aug 2005
Posts: 23,666
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From: Easton,Ks
try this one scroll down the page test #4
Part 1 -How to Test the Ford Ignition Control Module (Distributor Mounted)
Part 1 -How to Test the Ford Ignition Control Module (Distributor Mounted)
Fleet Owner
Joined: Aug 2005
Posts: 23,666
Likes: 301
From: Easton,Ks
Starting in 1992 all F-series trucks had remote mounted ICM according to all the Ford Wiring diagrams that Ford put out.
Both the EVTM and also the large foldout showed it as remote mounted starting in 1992 but some were remote mounted as early as 1989 with the 460 engine.
My 1993 truck is also remote mounted.
Both the EVTM and also the large foldout showed it as remote mounted starting in 1992 but some were remote mounted as early as 1989 with the 460 engine.
My 1993 truck is also remote mounted.
Fleet Owner
Joined: Aug 2005
Posts: 23,666
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From: Easton,Ks
The statement by RAL2005 does not say that 1992 and 1993 trucks had distributor mounted ICM.
It just says that 1993 and older had the gray module.
Lead Driver
Joined: Jan 2019
Posts: 5,070
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From: N.W. Alabama
thank you very much subford....as always, so there's 3 different Motorcraft part #'s for our trucks, or is this wrong info?
93 and older
grey distributor mount Motorcraft # DY1074
93 and older
grey remote mount Motorcraft # DY1075
94 and newer
black remote mount Motorcraft # DY1077
93 and older
grey distributor mount Motorcraft # DY1074
93 and older
grey remote mount Motorcraft # DY1075
94 and newer
black remote mount Motorcraft # DY1077
Cargo Master
Joined: Oct 2016
Posts: 2,738
Likes: 217
From: Northern VA
Timing timing timing. If timing is off all it will do is backfire.
You have spark, your ignition is good. I would put old PCM back in.
Did you set engine to 0 deg TDC when stabbing dizzy?
You might possibly have the wrong ICM—as you mentioned you replaced it.
Still, you gotta have this thing timed or we’ll get nowhere fast.
You have spark, your ignition is good. I would put old PCM back in.
Did you set engine to 0 deg TDC when stabbing dizzy?
You might possibly have the wrong ICM—as you mentioned you replaced it.
Still, you gotta have this thing timed or we’ll get nowhere fast.
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Fleet Owner
Joined: Aug 2005
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From: Easton,Ks
I said trucks.
The 1993 Mustang SVT Cobra R with engine V8 - 5.0L 302ci GAS MFI vin D - 2 valve OHV did use the gray distributor mounted ICM.
That is why the part listings say 93 and older.
But as we are talking about PU trucks here an the 1992 and 1993 are are all remote mounted.
The 1993 Mustang SVT Cobra R with engine V8 - 5.0L 302ci GAS MFI vin D - 2 valve OHV did use the gray distributor mounted ICM.
That is why the part listings say 93 and older.
But as we are talking about PU trucks here an the 1992 and 1993 are are all remote mounted.
New User
Joined: Dec 2016
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Interesting. I plugged in an Actron scanner and noticed that when looking at the data stream, with the spout disconnected the timing was not stable but moving back and forth 3-4 degrees at idle.
Fleet Owner
Joined: Aug 2005
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From: Easton,Ks
The PCM was telling the Ignition (ICM) to move the timing but the Ignition system (ICM) did not get the message. So the timing was still at 10 deg BTDC if you used a timing light.
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