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I just recently bought a 1995 f150 xlt 4x4 with 195000 miles. It has the 351 engine and e40d transmission. Im having a miss at idle and when lightly accelerating, at full throttle it sputters and has no power. So far I've replaced spark plugs, plug wires, cap, rotor, coil, fuel filter, ignition control module and cleaned the throttle body. It started missing about 2 months ago and i found the distributor cap arcing so i decided to do a tuneup and that seemed to fix the problem but now its back and acting worse. Scanned computer with obd scan tool and both koeo and koer running test give me code 111. Fuel pressure was 33-34 both tanks. Any help would be greatly appreciated, thanks.
Last edited by Rolltide72!; Feb 18, 2021 at 09:37 PM.
Reason: Misspelled
Check that plug wires are routed correctly, 1, 3 and 5, 6, dont need to run parallel with each other, make sure they gave you the correct ICM, generally they give us the wrong one, see below
pic courtesy of rla2005
Yea I've seen a bunch of threads about wire routing and crossfire and I've checked them multiple times and they are all apart. I've heard about 7 and 8 but i think that was earlier years. Ignition control module is right part number(echlin) i made sure to look it up myself before going into the store and applied dielectric grease to the back of it. I just don't understand how s****y it runs and no MIL or codes. And it ran great when i I bought it 2 month ago.
Yea I've seen a bunch of threads about wire routing and crossfire and I've checked them multiple times and they are all apart. I've heard about 7 and 8 but i think that was earlier years. Ignition control module is right part number(echlin) i made sure to look it up myself before going into the store and applied dielectric grease to the back of it. I just don't understand how s****y it runs and no MIL or codes. And it ran great when i I bought it 2 month ago.
NO NO NO NO NO. Dielectric Grease does not belong there. It might not be doing it already, but you're literally cooking the TFI module by putting Dielectric Grease there.
You need Thermal Paste between the module and mounting surface, NOT Dielectric Grease. Dielectric Grease is an insulator.
Okay ill get some thermal compound today. Its only been installed for 2 days and I've barely have driven the pickup since its not running good. The icm should still be good right?
Chances are, yes, it's probably fine, but they can be touchy about heat, if it was just firing it up and running around the block a few times, you're probably fine. If you took it out and blasted it down the highway for a few hours, might be a different story.
Okay thanks. No i just ran it around town a few times since replacement. Would they sell that thermal compound at napa or oreillys? And i heard that the icm grounds through the heatsink by the grease/compound. Is that true?
Last edited by Rolltide72!; Feb 20, 2021 at 06:41 PM.
Reason: Add info
They might. Your best bet is actually to hit an electronics store of some sort. Best Buy probably has it, it's the same stuff you use for putting between the CPU and heatsink in computers.
I've worked for a number of FLAPS, and almost none of them package the right stuff, if they pack anything at all, with their ignition modules.
