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Discussion Starter #1
I had to return an ISP router to the cable company and the office is about 30 minutes away. As I am driving, the car starts acting like it is missing. I could really tell it was acting up when I had to go up hills.

I made it back, though the car was running really rough by the time I made it home and put it in the garage. The next day I ran codes on the car and got the usual 111, no codes.

"Dang", I said to myself, "this is going to be fun..."

I did some research on "an engine acting like its mis-firing but no codes" and came up with the usual "check vacuum lines, spark plugs and coil". I also thought it could be the fuel injectors are plugged, bad fuel filter, pump... on and on.

The next day I lifted the hood and started looking for lose vacuum lines, connectors undone, etc. Then I went to the spark plug wire / spark plugs to check them. Visually they looked fine and all in, but the passenger side is hard to see clearly. I removed the air cleaner housing to the throttle body. I started with #6, it felt a little lose and I pushed it tight, though I found out later that it was just the top part of the connector is somewhat rubbery and feel loose. I went to #5 and could not find the wire.... "WTF!" it was totally disconnected and hanging down by the exhaust manifold. I plugged it back in, pushed it tight and proceeded to check the rest of them.

Seriously... that is just weird. All I can think of that happened is when I replaced all the wires, plugs and distributor (the OEM dist shaft wobbled) I did not push it in tight enough and it effectually just fell off. Or maybe some gremlin was messing with me... easier to think it was NOT my fault! Car is running great again, for a V6.

Strange.
 

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1997 Thunderbird 4.6, 1998 Mark VIII LSC
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At least it wasn't as weird as my strange misfire issue with my old 94 Cougar.

 

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Discussion Starter #3
LMAO! Dang, that was 10 years ago! Yeah, that is MUCH worse than my issue. But after everything I have been through with this car, I was expecting something just as bad.
 

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1997 Thunderbird LX
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I always make sure I try to feel or hear the click when pushing the boot onto the plug. I don't know how many times I bashed up my knuckles pulling them off because I didn't think they were on right! :mad:

Good to hear that you figured it out!

Joe
 
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I'm curious why it wouldn't give you a code for a misfire on a cylinder that was clearly misfiring!
 

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Discussion Starter #6
I wondered the same thing and why I searched for "94 Ford 3.8l misfire - no codes" and found the article about checking wires, plugs and coil. OBD1 is not that smart. But my 88 Mark VII code reader could run and check cylinder health, but not for this 94.
 
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