Lost spark please help
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Junior User
Joined: Aug 2009
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Lost spark please help
ok guys, was leaking coolant out of the back of the intake, so i replaced the intake gaskets, put everything back together and now i have no spark from the coil
I have a 92 F250 5.8l 351w
How can i check the plug that goes in the coil to make aure its hot?
I have a 92 F250 5.8l 351w
How can i check the plug that goes in the coil to make aure its hot?
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Junior User
Joined: Aug 2009
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checked it today, both the positive (+) and negative (-) are hot.
the fuel pump kicks on when i spin the distrb.but the light doesnt blink..
This might be a tricky one, any other ideas??
wheres the TFI module?
the fuel pump kicks on when i spin the distrb.but the light doesnt blink..
This might be a tricky one, any other ideas??
wheres the TFI module?
Thread Starter
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Junior User
Joined: Aug 2009
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checked the distributor plug and only one is hot, a red wire probably from the coil.
The rest of them all went to the plug on the wheel well and probably to the TFI module right? Should i keep checking for an open wire on the harness or replace the TFI module?
The rest of them all went to the plug on the wheel well and probably to the TFI module right? Should i keep checking for an open wire on the harness or replace the TFI module?
Fleet Owner
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From: Easton,Ks
Well if the fuel pumps kick on when you spin the distributor then PIP sensor is working so it might be the ICM (TFI Module). It is located over by the firewall low and mounted on the inter fender on the drivers side,
Fleet Owner
Joined: Aug 2005
Posts: 23,667
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From: Easton,Ks
Yes I think I would replace the TFI module, if it is not it you will always have a spare for testing in the future.
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Junior User
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got one at the junkyard today, nothing has changed, still only one hot wire at the ditributer.
know anywhere i could find a wire diagram for it??
know anywhere i could find a wire diagram for it??
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Fleet Owner
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From: Easton,Ks
Power, ground and the PIP do.
I would unplug the PCM (EEC) Computer and see if the spark returns.
Diagrams below.
The 1992 F-series Ignition system (three views):
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